Research Article |
Corresponding author: Robert W. Bryson Jr. ( brysonjr@uw.edu ) Academic editor: Wilson Lourenço
© 2018 Robert W. Bryson Jr., Dustin A. Wood, Matthew R. Graham, Michael E. Soleglad, John E. McCormack.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Bryson Jr RW, Wood DA, Graham MR, Soleglad ME, McCormack JE (2018) Genome-wide SNP data and morphology support the distinction of two new species of Kovarikia Soleglad, Fet & Graham, 2014 endemic to California (Scorpiones, Vaejovidae). ZooKeys 739: 79-106. https://doi.org/10.3897/zookeys.739.20628
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Morphologically conserved taxa such as scorpions represent a challenge to delimit. We recently discovered populations of scorpions in the genus Kovarikia Soleglad, Fet & Graham, 2014 on two isolated mountain ranges in southern California. We generated genome-wide single nucleotide polymorphism data and used Bayes factors species delimitation to compare alternative species delimitation scenarios which variously placed scorpions from the two localities with geographically adjacent species or into separate lineages. We also estimated a time-calibrated phylogeny of Kovarikia and examined and compared the morphology of preserved specimens from across its distribution. Genetic results strongly support the distinction of two new lineages, which we describe and name here. Morphology among the species of Kovarikia was relatively conserved, despite deep genetic divergences, consistent with recent studies of stenotopic scorpions with limited vagility. Phylogeographic structure discovered in several previously described species also suggests additional cryptic species are probably present in the genus.
arachnid, Bayes factor delimitation, RADseq, species tree, Vaejovidae
Species delimitation of morphologically conserved taxa has been a historically challenging endeavor for taxonomists. Recent developments in both DNA sequencing and species delimitation modeling have alleviated much of this burden by providing researchers with new ways to systematically classify similar-looking yet evolutionary distinct species. Although many species delimitation methods were originally designed and tested using only a handful of genes (e.g.,
Scorpions represent a well-known group of animals with a relatively conserved morphology. Thought to be derived from amphibious ancestors that lived more than 425 million years ago, their body plan appears to have changed relatively little since their adaptation to land (
California is a global biodiversity hotspot and home to numerous endemic scorpions (i.e.,
We sequenced 36 samples of Kovarikia from 16 localities representing all described species and the new populations from the Santa Ana and San Gabriel Mountains (Table
Genetic samples of Kovarikia used in this study. Additional details on collecting localities are listed in Appendix
Sample numbers | Species | Locality |
---|---|---|
sky241, sky263, sky264 | K. angelena | CA: Ventura Co: Yerba Buena Road, Santa Monica Mountains |
sky464, sky465, sky466, sky499 | K. angelena | CA: Los Angeles Co: Kanan-Duma Road, Santa Monica Mountains |
sky266, sky498 | K. bogerti | CA: San Bernardino Co: Mountain Home, San Bernardino Mountains |
sky470, sky471, sky472 | K. bogerti | CA: Riverside Co: Mountain Center, San Jacinto Mountains |
sky467, sky468, sky469 | San Gabriel Mtns | CA: Los Angeles Co: Eaton Canyon Falls, San Gabriel Mountains |
sky250, sky516, sky517 | Santa Ana Mtns | CA: Orange Co: Trabuco Creek Road, Santa Ana Mountains |
sky518 | Santa Ana Mtns | CA: Orange Co: Silverado Canyon Road, Santa Ana Mountains |
sky248, sky249 | K. williamsi | CA: San Diego Co: Palomar Mountain |
sky251 | K. williamsi | CA: San Diego Co: San Diego Zoo Safari Park |
sky274, sky276 | K. williamsi | CA: San Diego Co: Barrett Flume |
sky277 | K. williamsi | CA: San Diego Co: Barrett Lake Road |
sky275, sky519, sky520 | K. williamsi | CA: San Diego Co: Escondido |
sky511 | K. williamsi | CA: San Diego Co: Indian Valley Road |
sky273, sky504 | K. williamsi | CA: San Diego Co: Mission Trails |
sky512, sky513 | K. williamsi | CA: San Diego Co: Padre Dam |
sky494, sky514, sky515 | K. williamsi | CA: San Diego Co: Santa Ysabel |
We demultiplexed and processed Illumina reads using pyRAD v2.16.1 (
We performed Bayes factor species delimitation using BFD* (
Sampling localities for genetic samples of scorpions in the genus Kovarikia. Type localities (star symbols) are shown for reference. Inset shows the 11 competing BFD* models used in species delimitation; numbers correspond to species (1 K. angelena 3 K. bogerti 5 K. williamsi) or new localities (2 San Gabriel Mountains 4 Santa Ana Mountains).
Bayes factor comparisons of 11 competing models of species delimitation in Kovarikia. Marginal likelihood estimates (MLE) and Bayes factors comparisons (2lnBF) shown; the model that received the best marginal likelihood score is indicated by a 2lnBF score of NA. SGM = San Gabriel Mountains, SAM = Santa Ana Mountains.
Model | Species | Groupings | MLE | Rank | 2lnBF |
---|---|---|---|---|---|
M1 | 3 | angelena, SGM + bogerti, SAM + williamsi | -25035.20 | 8 | 14165.49 |
M2 | 3 | angelena + SGM, bogerti, SAM + williamsi | -26835.35 | 9 | 15965.64 |
M3 | 3 | angelena, SGM + bogerti + SAM, williamsi | -24961.18 | 7 | 14091.47 |
M4 | 3 | angelena + SGM, bogerti + SAM, williamsi | -28211.23 | 11 | 17341.52 |
M5 | 5 | angelena, SGM, bogerti, SAM, williamsi | -10869.71 | 1 | – |
M6 | 4 | angelena, SGM, bogerti, SAM + williamsi | -14205.08 | 2 | 3335.37 |
M7 | 4 | angelena, SGM, bogerti + SAM, williamsi | -14849.95 | 3 | 3980.24 |
M8 | 4 | angelena, SGM + bogerti, SAM, williamsi | -18460.44 | 4 | 7590.73 |
M9 | 4 | angelena + SGM, bogerti, SAM, williamsi | -19812.85 | 6 | 8943.14 |
M10 | 4 | angelena, SGM + SAM, bogerti, williamsi | -19084.64 | 5 | 8214.93 |
M11 | 3 | angelena + SGM + SAM, bogerti, williamsi | -27947.41 | 10 | 17077.70 |
We generated a final species tree in SNAPP based on the best-ranked species model from BFD*. We ran the analysis for 1,000,000 MCMC generations, sampling every 1,000 steps. We confirmed convergence and high ESS values using Tracer v1.5 (
To examine phylogenetic relationships within Kovarikia and estimate approximate dates of divergences among lineages, we estimated a time-calibrated phylogeny from the concatenated RAD loci using BEAST v1.8.2 (
We examined the morphology of 40 preserved specimens of Kovarikia (Appendix
One sample of K. williamsi from the San Diego Zoo Safari Park contained a high percentage of missing data (>90 %) and was not included in the final SNP data assembly. The final aligned data set with all RAD loci contained 35 samples, 2,915 loci and 414,566 nucleotides. The final data set for species delimitation contained 35 samples and 1,123 unlinked SNPs after sites with missing data were removed by SNAPP. Datasets were deposited in Dryad.
The BFD* model with the best marginal likelihood value strongly supported a five-species model that placed scorpions from the San Gabriel and Santa Ana Mountains into separate lineages (Table
Phylogenetic analysis of the concatenated RAD loci produced a well-supported tree (Fig.
Time-calibrated phylogeny of scorpions in the genus Kovarikia inferred from 414,566 base-pairs of concatenated RAD loci. Nodes that received less than 1.0 posterior probability support are labeled and in bold. Mean estimated divergence date (in millions of years ago, Ma) followed by 95% highest posterior density intervals in brackets. SBM = San Bernardino Mountains, SJM = San Jacinto Mountains.
Estimated divergence dates among the five major clades of Kovarikia predated the start of the Pleistocene 2.6 million years ago (Ma), based on mean dates (Fig.
Morphological assessments revealed several characters that differentiated K. angelena, K. bogerti, K. williamsi, and specimens from the San Gabriel Mountains and the Santa Ana Mountains (Appendix
Telson of adult females of genus Kovarikia, lateral (left column), ventral (middle column), and dorsal (right column) views. In K. bogerti the vesicle width is noticeably thinner than in the other species and the vesicular ridges are more reduced (see ventral and dorsal views). Note, the vesicular linear patch found on the dorsal surface of adult males is absent in the females.
Our genetic data strongly support the recognition of Kovarikia from the San Gabriel Mountains and the Santa Ana Mountains as distinct lineages, which we describe as new species and name below. Based on the topography of southern California and our current understanding of the distribution of Kovarikia (Fig.
United States: California: Orange Co: male holotype (DMNS ZA.38170), Trabuco Creek Road near the entrance to Holy Jim Canyon, Santa Ana Mountains. 33.67699°N, 117.51733°W, 527 m. 15 April 2015. R.W. Bryson. Paratypes: Same locality. 15 April 2015. R.W. Bryson. 1 ♂, 5 ♀ (DMNS ZA.38171–ZA.38176). Orange Co: Silverado Canyon Road, Santa Ana Mountains. 33.74614, -117.59327, 524 m. 16 April 2015, R.W. Bryson. 1 ♂ (DMNS ZA.38177).
Patronym honoring Warren E. Savary for his contributions to vaejovid scorpion taxonomy.
Large sized species for the family, with males up to 50.5 mm and females reaching 57.0 mm; pectinal tooth counts 12–13 for males and 11–13 for females. The species possesses the characteristics of genus Kovarikia: i.e. neobothriotaxy on ventral surface of chela, secondary lamellar hook on spermatophore, large crescent-shaped barb with a smooth edge on the mating plug, and secondary exteromedian (EMc) carina on pedipalp patella (
Color (Fig.
Kovarikia savaryi sp. n., male holotype. Right hemispermatophore and mating plug (submerged in alcohol). Upper-Left Hemispermatophore median area and lamina, dorsal, interodorsal, and ventral views Lower Closeup of the median area and lamellar hooks, interodorsal, internal, and ventral views. Note, embedded mating plug is visible in ventral view Upper-Right Mating plug, four dorsal views at various angles and one exteroventral view (bottom).
Male holotype (DMNS ZA.38170) | Male paratype 1 (DMNS ZA.38171) | Male paratype 2 (DMNS ZA.38177) | Female paratype 1 (DMNS ZA.38172) | Female paratype 2 (DMNS ZA.38173) | Female paratype 3 (DMNS ZA.38174) | Female paratype 4 (DMNS ZA.38175) | Female paratype 5 (DMNS ZA.38176) | |
Total L | 50 | 50.5 | 49 | 47.5 | 57 | 53 | 47 | 57 |
Cara L | 5.85 | 6.5 | 6.15 | 5.75 | 6.5 | 6.3 | 6.05 | 7.2 |
Meso L | 14.95 | 15.7 | 14.1 | 15.8 | 17.65 | 17.8 | 13.6 | 17.3 |
Met I L | 3 | 2.95 | 2.9 | 2.75 | 3.1 | 2.95 | 2.65 | 3.2 |
Met I W | 2.6 | 2.95 | 2.9 | 2.55 | 2.7 | 2.7 | 2.6 | 2.95 |
Met II L | 3.55 | 3.55 | 3.5 | 3.25 | 3.65 | 3.5 | 3.3 | 3.9 |
Met II W | 2.55 | 2.9 | 2.8 | 2.5 | 2.55 | 2.55 | 4.45 | 2.85 |
Met III L | 3.9 | 3.95 | 3.9 | 3.55 | 3.9 | 3.75 | 3.5 | 4.2 |
Met III W | 2.5 | 2.85 | 2.7 | 2.4 | 2.45 | 2.5 | 2.3 | 2.8 |
Met IV L | 4.8 | 4.95 | 5 | 4.5 | 4.95 | 4.75 | 4.35 | 4.5 |
Met IV W | 2.3 | 2.65 | 2.5 | 2.3 | 2.2 | 2.3 | 2.2 | 2.6 |
Met V L | 7.5 | 7.3 | 7.65 | 6.85 | 7.7 | 7.35 | 6.7 | 8.2 |
Met V W | 2.25 | 2.5 | 2.4 | 2.2 | 2.3 | 2.3 | 2.15 | 2.5 |
Tel L | - | 6.3 | - | 6.2 | 7.2 | 6.9 | 6.2 | 7.3 |
Ves L | 5.2 | 4.75 | 4.1 | 4.5 | 5.4 | 5.1 | 4.6 | 5.55 |
Ves W | 2.6 | 2.6 | 2.8 | 2.35 | 2.6 | 2.5 | 2.5 | 3 |
Ves D | 2.05 | 2.1 | 2.2 | 2 | 2.1 | 2.15 | 1.95 | 2.3 |
Acu L | - | 1.6 | 1.6 | 1.7 | 1.85 | 1.75 | 1.65 | 1.7 |
Fem L | 5.4 | 5.5 | 5.6 | 5.5 | 5.95 | 5.7 | 5.35 | 6.4 |
Fem W | 1.9 | 1.95 | 1.9 | 1.8 | 2.1 | 2 | 1.95 | 2.2 |
Pat L | 5.25 | 5.3 | 5.5 | 5.4 | 5.8 | 5.6 | 5.3 | 6.3 |
Pat W | 2.25 | 2.25 | 2.35 | 2.3 | 2.3 | 2.35 | 2.3 | 2.6 |
Chel L | 10 | 9.95 | 10.4 | 10.1 | 11.5 | 10.8 | 9.85 | 12.35 |
Palm L | 5.55 | 5.8 | 5.9 | 5.55 | 6.4 | 6.05 | 5.5 | 6.8 |
Palm W | 3 | 2.55 | 3.3 | 2 | 3.2 | 3.05 | 2.85 | 3.5 |
Palm D | 4.2 | 4.45 | 4.65 | 2.8 | 4.3 | 3.95 | 4 | 4.75 |
FF L | 3.85 | 5.2 | 4.1 | 4 | 4.4 | 4.1 | 3.75 | 4.75 |
MF L | 5.25 | 5.15 | 5.5 | 5.25 | 6 | 5.55 | 5.05 | 6.45 |
Pect Teeth | 12/13 | 13/12 | 12/12 | 11/11 | 12/11 | 11/10 | 11/11 | 12/13 |
(mm). Total L, 50.0; carapace L, 5.85; mesosoma L, 14.95; metasoma L (additive without telson), 22.75. Metasomal segments: I L/W, 3.00/2.60; II L/W, 3.55/2.55; III L/W, 3.90/2.50; IV L/W, 4.80/2.30; V L/W, 7.50/2.25. Telson: vesicle L/W/D, 5.20/2.06/2.05. Pedipalps: femur L/W, 5.40/1.90; patella L/W, 5.25/2.25; chela L/W/D, 10.00/3.00/4.20; fixed finger L, 3.85; movable finger L, 5.25; palm L, 5.55. Note: Aculeus is broken so Telson L and Aculeus L are omitted.
Slight sexual dimorphism was evident in telson and metasoma morphology for K. savaryi. Two-tailed Student’s t-tests indicated that the length of metasomal segment V is significantly larger in males (p = 0.048). The telson aculeus is significantly longer in females (p=0.019). Differences may also occur in lengths and widths of additional metasomal segments, as well as femur, patella, and chela morphology, but small sample sizes hindered statistical power in our analyses.
United States: California: Los Angeles Co: male holotype (DMNS ZA.38178), Eaton Canyon Falls, San Gabriel Mountains. 34.19665°N, 118.10210°W, 475 m. 15 May 2014. R.W. Bryson Jr. and E. Zarza. Paratypes: Same locality. 15 May 2014. R.W. Bryson Jr. and E. Zarza, 2 ♂, 4 ♀ (DMNS ZA.38179–ZA.38184).
The specific name is a noun in apposition in reference to Occidental College, commonly referred to as Oxy, which lies at the base of the San Gabriel Mountains near Eaton Canyon, the type locality.
Large sized species for the family, with males up to 51.0 mm and females reaching 52.0 mm; pectinal tooth counts 12 for males and 11–13 for females. The species possesses the characteristics of genus Kovarikia: i.e. neobothriotaxy on ventral surface of chela, secondary lamellar hook on spermatophore, large crescent-shaped barb with a smooth edge on the mating plug, secondary exteromedian (EMc) carina on pedipalp patella. The holotype differs from the K. savaryi sp. n. holotype in the following: median eyes protrude well above carapace surface (only slightly above in K. savaryi); median carinal pair on sternite VII obsolete (essentially obsolete except for a few scattered small granules in K. savaryi); strongly granular intermediary carinae on metasomal segment I, the posterior 1/4 on segment II and posterior 1/5 of segment III (moderately granular on segment I, the posterior 1/5 of segment II, and posterior 1/6 of segment III in K. savaryi); lateral carinae on metasomal segment V crenulate and connecting with dorsolateral carinae at posterior 1/4 of segment (posterior 1/3 in K. savaryi); internal surface of femur with a few large granules arranged in a line along proximal 1/3 (scattered granules of various size, mostly on proximal 1/2 in K. savaryi); basitarsus retroventral setae count of 4/4:7/7:7/7:8/7 (4/4:5/5:5/5:7/6 in K. oxy). Differs from the other Kovarikia spp. by pectine counts and morphology of the chelal fingers and telson, as outlined below in the “Key to Species of Kovarikia”.
Color (Fig.
Kovarikia oxy sp. n., male holotype. Right hemispermatophore and mating plug (submerged in alcohol). Upper-Left Hemispermatophore median area and lamina, dorsal, internal, and ventroexternal views Lower Closeup of the median area and lamellar hooks, dorsal, internal, and ventral views. Note, embedded mating plug is visible in ventral view Upper-Right Mating plug, three dorsal views (left) and two ventral views (right).
Male holotype (DMNS ZA.38178) | Male paratype 1 (DMNS ZA.38179) | Male paratype 2 (DMNS ZA.38180) | Female paratype 1 (DMNS ZA.38181) | Female paratype 2 (DMNS ZA.38182) | Female paratype 3 (DMNS ZA.38183) | Female paratype 4 (DMNS ZA.38184) | |
---|---|---|---|---|---|---|---|
Total L | 45 | 51 | 47 | 41 | 42.5 | 52 | 43 |
Cara L | 5.35 | 6.2 | 5.8 | 5.75 | 6 | 6.1 | 6.1 |
Meso L | 14.7 | 15.2 | 13.2 | 10.8 | 10.5 | 17.5 | 10.5 |
Met I L | 2.5 | 3 | 2.7 | 2.4 | 2.5 | 2.65 | 2.6 |
Met I W | 2.45 | 2.95 | 2.55 | 2.45 | 2.5 | 2.7 | 2.6 |
Met II L | 3 | 3.5 | 3.3 | 2.9 | 2.95 | 3.2 | 3.1 |
Met II W | 2.3 | 2.9 | 2.55 | 2.35 | 2.35 | 2.5 | 2.5 |
Met III L | 3.55 | 3.95 | 3.7 | 3.2 | 3.35 | 3.6 | 3.4 |
Met III W | 2.3 | 2.8 | 2.4 | 2.2 | 2.3 | 2.45 | 2.35 |
Met IV L | 4.45 | 4.85 | 4.7 | 4 | 4.15 | 4.4 | 4.3 |
Met IV W | 2.15 | 2.7 | 2.25 | 2.1 | 2.1 | 2.3 | 2.2 |
Met V L | 6.6 | 7.6 | 7.1 | 6.2 | 6.3 | 6.8 | 6.6 |
Met V W | 2.1 | 2.5 | 2.2 | 2.05 | 2.15 | 2.2 | 2.15 |
Tel L | 5.75 | 6.55 | 6.25 | 5.8 | 6 | 6.25 | na |
Ves L | 4.25 | 4.9 | 4.6 | 4 | 4.25 | 4.5 | 4.35 |
Ves W | 2.4 | 2.7 | 2.6 | 2.25 | 2.45 | 2.5 | 2.55 |
Ves D | 1.85 | 2.2 | 2 | 1.75 | 2 | 2.05 | 2 |
Acu L | 1.6 | 1.7 | 1.65 | - | 1.75 | 1.8 | |
Fem L | 5 | 5.75 | 5.5 | 5.1 | 5.35 | 5.55 | 5.5 |
Fem W | 1.65 | 1.95 | 1.7 | 1.7 | 1.9 | 2 | 1.85 |
Pat L | 4.9 | 5.65 | 5.2 | 5 | 5.35 | 5.55 | 5.4 |
Pat W | 1.95 | 2.25 | 2.05 | 2.05 | 2.2 | 2.25 | 2.2 |
Chel L | 9.1 | 10.4 | 10.05 | 9.4 | 9.85 | 10.35 | 10.1 |
Palm L | 5 | 6.05 | 5.6 | 5 | 5.45 | 5.8 | 5.55 |
Palm W | 2.7 | 3.1 | 3.15 | 2.8 | 2.85 | 3.05 | 2.85 |
Palm D | 3.85 | 4.5 | 4.3 | 3.75 | 3.95 | 4.1 | 4.1 |
FF L | 3.6 | 4.15 | 4.05 | 3.8 | 3.9 | 4.25 | 4.2 |
MF L | 4.9 | 5.55 | 5.45 | 5.05 | 5.3 | 5.6 | 5.45 |
Pect Teeth | 12/12 | -/12 | 12/12 | 11/11 | 11/11 | 13/12 | 11/11 |
(mm). Total L, 45.0; carapace L, 5.35; mesosoma L, 14.70; metasoma L (additive without telson), 20.10; telson L, 5.75. Metasomal segments: I L/W, 2.50/2.45; II L/W, 3.00/2.30; III L/W, 3.55/2.30; IV L/W, 4.45/2.15; V L/W, 6.60/2.10. Telson: vesicle L/W/D, 4.25/2.40/1.85; aculeus L, 1.60. Pedipalps: femur L/W, 5.00/1.65; patella L/W, 4.90/1.95; chela L/W/D, 9.10/2.70/3.85; fixed finger L, 3.60; movable finger L, 4.90; palm L, 5.00.
Sexual dimorphism was evident in several morphological characters for K. oxy. Two-tailed Student’s t-tests indicated that the length of metasomal segment IV is significantly larger in males (p = 0.012) and that chelal palms are significantly wider (p = 0.019). One-tailed tests indicate that metasomal segment II is also longer in males (p = 0.048), telson vesicle widths are wider (p = 0.033), and that males have wider (p = 0.009) and deeper (p = 0.031) chelal palms. Larger sample sizes may reveal differences in additional characters, especially the lengths of the femur and metasomal segments I, III, and V.
1 | Chelal fingers are relatively long when compared to the telson vesicle width: vesicle width / movable finger 0.35–0.41 (0.382) in the female and vesicle width / fixed finger 0.46–0.57 (0.510) | 2 |
– | Chelal fingers are relatively short when compared to the telson vesicle width: vesicle width / movable finger length 0.43–0.50 (0.463) for the female and 0.43–0.51 (0.480) for the male, and vesicle width / fixed finger length 0.59–0.67 (0.619) for the female and 0.58–0.68 (0.642) for the male | 3 |
2 | Telson vesicular ridges are well developed and protrude beyond the aculeus juncture; telson vesicle is relatively wide, chelal palm depth / vesicle width 1.52–1.89 (1.680) for the female and 1.73–1.86 (1.803) for the male | Kovarikia williamsi (Gertsch & Soleglad, 1972) |
– | Telson vesicular ridges are of medium development and do not protrude beyond the aculeus juncture; telson vesicle is relatively thin, chelal palm depth / vesicle width 1.96–2.19 (2.052) for the female | Kovarikia bogerti (Gertsch & Soleglad, 1972) |
3 | Pectinal tooth counts of male 12–13 and female 11–13 | 4 |
– | Pectinal tooth counts of male 9–11 and female 10–11 | Kovarikia angelena (Gertsch & Soleglad, 1972) |
4 | Telson vesicle is relatively long when compared to the chelal fingers, movable finger length / vesicle length 1.09–1.16 (1.115) for the female and 1.01–1.08 (1.047) for the male, and fixed finger length / vesicle length 0.80–0.86 (0.822) for the female and 0.74 (0.740) for the male | Kovarikia savaryi Bryson, Graham & Soleglad |
– | Telson vesicle is relatively short when compared to the chelal fingers, movable finger length / vesicle length 1.24–1.26 (1.252) for the female and 1.13–1.18 (1.157) for the male, and fixed finger / vesicle length 0.92–0.97 (0.944) for the female and 0.85–0.88 (0.858) for the male | Kovarikia oxy Bryson, Graham & Soleglad |
* excluding male K. bogerti, unavailable at the time of study |
We thank P. Cushing, C. Grinter, and J. Stephenson of the Denver Museum of Nature and Science (DMNS); D. Stokes, R. Wood, S. Wood, C. Rochester and E. Zarza for assistance in the field; A. Leaché for help with BFD*; R. Hansen for help editing drafts of this manuscript; and M. Adams for assistance with images. Research was conducted under scientific permits issued by CDFW. This work used the Vincent J. Coates Genomics Sequencing Laboratory at UC Berkeley, supported by NIH S10 OD018174 Instrumentation Grant. The use of trade, product, or firm names in this publication does not imply endorsement by the U.S. Government.
Material examined
Kovarikia angelena. USA: California: Los Angeles Co: Kanan-Duma Road above Malibu, Santa Monica Mountains. 34.05224, -118.79741, 378 m. 18 May 2014. R.W. Bryson Jr. and E. Zarza. 1 ♂ 3 ♀. Ventura Co: Yerba Buena Road near intersection with Hwy 1, Santa Monica Mountains. 34.07145, -118.95732, 134 m. 27 September 2013. R. W. Bryson Jr. 3 ♂.
Kovarikia bogerti. USA: California: San Bernardino Co: near Mountain Home Village, San Bernardino Mountains. 34.10895, -116.99125, 1244 m. 2 June 2013. R. W. Bryson Jr. 1 ♂ 1 ♀. Riverside Co: Hwy 74 near Mountain Center, San Jacinto Mountains. 33.70707, -116.75529, 987 m. 24 May 2014. D. Wood and C. Rochester. 4 ♀.
Kovarikia oxy. USA: California: Los Angeles Co: Eaton Canyon Falls, San Gabriel Mountains. 34.19665°N, 118.10210°W, 475 m. 15 May 2014. R.W. Bryson Jr. and E. Zarza. 3 ♂, 4 ♀.
Kovarikia savaryi. USA: California: Orange Co: Trabuco Creek Road near the entrance to Holy Jim Canyon, Santa Ana Mountains. 33.67699°N, 117.51733°W, 527 m. 15 April 2015. R.W. Bryson. 2 ♂, 5 ♀. Orange Co: Silverado Canyon Road, Santa Ana Mountains. 33.74614, -117.59327, 524 m. 16 April 2015, R.W. Bryson. 1 ♂.
Kovarikia williamsi. USA: California: San Diego Co: Barrett Flume. 32.62023, -116.72719, 449 m. 18 February 2014. D. Wood and D. Stokes. 1 ♂. San Diego Co: Escondido. 33.222830, -117.156470, 340 m. 10 March 2014. D. Wood and D. Stokes. 2 ♀. San Diego Co: Indian Valley Road, ca. 7 mi from junction with Hwy 79. 33.34891, -116.65568, 1176 m. 14 April 2014. D. Wood and D. Stokes. 1 ♀. San Diego Co: Mission Trails Regional Park. 32.82059, -117.06362, 80 m. 7 February 2014. D. Wood, R. Wood, and S. Wood. 1 ♂ 3 ♀. San Diego Co: Santa Ysabel Ecological Reserve, near USGS, San Diego Field Station Array 15. 33.13501, -116.65312, 1045 m. 6 March 2014. D. Wood and D. Stokes. 1 ♀. Same locality. 16 April 2015. D. Wood and D. Stokes. 1 ♀. San Diego Co: Mission Gorge. 32.81177, -117.07151, 34 m. 2010. M.R. Graham. 1 ♂, 1 ♀.
Morphological variation among female Kovarikia measured for this study. For each character, the mean ± standard deviation are provided, with ranges in parentheses. All measurements are in mm.
K. angelena | K. bogerti | K. williamsi | K. oxy | K. savaryi | |
---|---|---|---|---|---|
(N = 3) | (N = 4) | (N = 6) | (N = 4) | (N = 5) | |
Total L | 44.67±5.80 (38.8–50.0) | 49.38±1.89 (47.5–51.0) | 48.92±1.59 (47.0–50.5) | 44.63±4.99 (41.0–43.0) | 52.30±4.89 (47.0–57.0) |
Cara L | 5.83±0.67 (5.10–6.40) | 6.66±0.13 (6.50–6.80) | 6.96±0.33 (6.40–7.30) | 2.99±0.14 (5.75–6.10) | 6.36±0.55 (5.75–7.20) |
Met I L | 2.65±0.25 (2.40–2.90) | 2.70±0.22 (2.45–2.95) | 2.88±0.13 (2.70–3.00) | 2.54±0.10 (2.40–2.65) | 2.93±0.23 (2.65–3.20) |
Met I W | 2.55±0.28 (2.30–2.85) | 2.75±0.04 (2.70–2.80) | 2.85±0.11 (2.70–3.05) | 2.56±0.10 (2.45–2.70) | 2.70±0.15 (2.55–2.95) |
Met II L | 3.13±0.25 (2.90–3.40) | 3.29±0.11 (3.15–3.40) | 3.41±0.20 (3.15–3.60) | 3.04±0.12 (2.90–3.20) | 3.52±0.27 (3.25–3.90) |
Met II W | 2.40±0.20 (2.20–2.60) | 2.65±0.06 (2.60–2.70) | 2.68±0.15 (2.50–2.95) | 2.43±0.08 (2.35–2.50) | 2.95±0.83 (2.50–4.45) |
Met III L | 3.32±0.18 (3.15–3.50) | 3.65±0.13 (3.50–3.80) | 3.73±0.23 (3.45–4.00) | 3.39±0.14 (3.20–3.60) | 3.78±0.28 (3.50–4.20) |
Met III W | 2.30±0.20 (2.10–2.50) | 2.55±0.09 (2.45–2.65) | 2.56±0.14 (2.40–2.80) | 2.33±0.09 (2.20–2.45) | 2.49±0.19 (2.30–2.80) |
Met IV L | 4.22±0.23 (4.00–4.45) | 4.58±0.14 (4.40–4.75) | 4.50±0.36 (4.00–4.95) | 4.21±0.15 (4.00–4.40) | 4.61±0.24 (4.35–4.95) |
Met IV W | 2.15±0.15 (2.00–2.30) | 2.31±0.05 (2.25–2.35) | 2.39±0.12 (2.25–2.60) | 2.18±0.08 (2.10–2.30) | 2.32±0.16 (2.20–2.60) |
Met V L | 6.67±0.50 (6.20–7.20) | 6.84±0.23 (6.65–7.15) | 7.27±0.44 (6.80–7.80) | 4.28±0.18 (4.00–4.50) | 7.36±0.62 (6.70–8.20) |
Met V W | 2.15±0.23 (1.90–2.35) | 2.24±0.05 (2.20–2.30) | 2.36±0.14 (2.20–2.55) | 2.14±0.05 (2.05–2.20) | 2.29±0.13 (2.15–2.50) |
Ves L | 4.57±0.18 (4.40–4.75) | 4.40±0.15 (4.25–4.60) | 4.79±0.54 (4.00–5.45) | 4.28±0.18 (4.00–4.50) | 5.03±0.47 (4.50–5.55) |
Ves W | 2.47±0.15 (2.30–2.60) | 2.21±0.08 (2.15–2.30) | 2.50±0.21 (2.20–2.80) | 2.44±0.11 (2.25–2.55) | 2.59±0.25 (2.35–3.00) |
Ves D | 2.03±0.16 (1.85–2.15) | 1.94±0.05 (1.90–2.00) | 2.11±0.22 (1.80–2.40) | 1.95±0.12 (1.75–2.05) | 2.10±0.14 (1.95–2.30) |
Fem L | 5.17±0.60 (4.50–5.65) | 6.18±0.25 (6.00–6.55) | 6.38±0.31 (5.90–6.70) | 5.38±0.18 (5.10–5.55) | 5.78±0.41 (5.35–6.40) |
Fem W | 2.18±0.63 (1.60–2.85) | 2.19±0.03 (2.15–2.22) | 2.24±0.09 (2.15–2.35) | 1.86±0.11 (1.70–2.00) | 2.01±0.15 (1.80–2.20) |
Pat L | 5.03±0.57 (4.40–5.50) | 5.71±0.13 (5.60–5.90) | 6.04±0.28 (5.60–6.40) | 5.33±0.20 (5.10–5.55) | 5.68±0.40 (5.30–6.30) |
Pat W | 2.18±0.28 (1.90–2.45) | 2.53±0.12 (2.40–2.65) | 2.60±0.14 (2.40–2.75) | 2.18±0.08 (2.05–2.25) | 2.37±0.13 (2.30–2.60) |
Palm L | 5.50±0.56 (4.90–6.00) | 6.11±0.17 (6.00–6.35) | 6.52±0.29 (6.10–6.80) | 5.45±0.29 (5.00–5.80) | 6.06±0.56 (5.50–6.80) |
Palm W | 3.50±0.88 (2.85–4.50) | 3.09±0.10 (3.00–3.20) | 3.29±0.28 (2.90–3.65) | 2.89±0.10 (2.80–3.05) | 2.37±0.13 (2.00–3.50) |
Palm D | 3.83±0.35 (3.50–4.20) | 4.54±0.16 (4.40–4.70) | 4.56±0.28 (4.15–4.90) | 3.98±0.14 (3.75–4.10) | 3.96±0.72 (2.80–4.75) |
FF L | 3.90±0.28 (3.60–4.15) | 4.58±0.15 (4.40–4.70) | 4.74±0.31 (4.30–5.10) | 4.04±0.19 (3.80–4.25) | 4.20±0.39 (3.75–4.75) |
MF L | 5.20±0.52 (4.60–5.50) | 6.03±0.10 (5.95–6.15) | 6.38±0.38 (5.80–6.75) | 5.35±0.20 (5.05–5.60) | 5.66±0.57 (5.05–6.45) |
Pect Teeth | 10.20±0.84 (9–11) | 11.50±0.53 (11–12) | 12.00±0.47 (11–13) | 11.38±0.74 (11–13) | 11.30±0.82 (10–13) |
Morphological variation among male Kovarikia measured for this study. For each character, the mean ± standard deviation are provided, with ranges in parentheses. All measurements are in mm.
K. angelena | K. williamsi | K. oxy | K. savaryi | |
---|---|---|---|---|
(N = 4) | (N = 3) | (N = 3) | (N = 3) | |
Total L | 43.45±1.94(41.30–46.00) | 50.67±2.08(49.0–53.0) | 47.67±3.06(45.0–51.0) | 49.83±0.76(49.0–50.5) |
Cara L | 5.25±3.33(4.80–5.50) | 7.05±0.25(6.80–7.30) | 5.78±0.43(5.32–6.20) | 6.18±0.33(5.85–6.50) |
Met I L | 5.12±5.07(2.42–2.70) | 3.40±0.48(3.10–3.95) | 2.73±0.25(2.50–3.00) | 2.95±0.05(2.90–3.00) |
Met I W | 2.48±0.20(2.22–2.70) | 3.05±0.13(2.95–3.20) | 2.65±0.27(2.45–2.95) | 2.82±0.19(2.60–2.95) |
Met II L | 3.08±0.21(2.80–3.30) | 3.77±0.06(3.70–3.80) | 3.27±0.25(3.00–3.50) | 3.53±0.03(3.50–3.55) |
Met II W | 2.40±0.16(2.18–2.55) | 2.95±0.18(2.80–3.15) | 2.58±0.30(2.30–2.90) | 2.75±0.18(2.55–2.90) |
Met III L | 3.30±0.22(3.00–3.50) | 4.13±0.08(4.05–4.20) | 3.73±0.20(3.55–3.95) | 3.92±0.03(3.90–3.95) |
Met III W | 2.30±0.19(2.03–2.45) | 2.87±0.18(2.70–3.05) | 2.50±0.26(2.30–2.80) | 2.68±0.18(2.50–2.85) |
Met IV L | 4.19±0.24(3.90–4.45) | 4.90±0.62(4.20–5.40) | 4.67±0.20(4.45–4.85) | 4.92±0.10(4.80–5.00) |
Met IV W | 2.09±0.13(1.90–2.20) | 2.67±0.18(2.50–2.85) | 2.37±0.29(2.15–2.70) | 2.48±0.18(2.30–2.65) |
Met V L | 6.41±0.41(5.95–6.80) | 8.00±0.22(7.85–8.25) | 7.10±0.50(6.60–7.60) | 7.48±0.18(7.30–7.65) |
Met V W | 2.04±0.13(1.90–2.15) | 2.65±0.13(2.50–2.75) | 2.27±0.21(2.10–2.50) | 2.38±0.13(2.25–2.50) |
Ves L | 4.18±0.32(3.90–4.50) | 5.52±0.32(5.15–5.75) | 4.58±0.33(2.40–2.70) | 4.68±0.55(4.10–5.20) |
Ves W | 2.26±0.17(2.10–2.40) | 2.87±0.15(2.70–3.00) | 2.57±0.15(2.40–2.70) | 2.67±0.12(2.60–2.80) |
Ves D | 1.81±0.24(1.55–2.10) | 2.40±0.18(2.20–2.55) | 2.02±0.18(1.85–2.20) | 2.12±0.08(2.05–2.20) |
Fem L | 4.88±0.26(4.50–5.10) | 6.70±0.33(6.40–7.05) | 5.42±0.38(5.00–5.75) | 5.50±0.10(5.40–5.60) |
Fem W | 1.69±0.10(1.55–1.80) | 2.25±0.15(2.10–2.40) | 1.78±0.16(1.65–1.95) | 1.92±0.03(1.90–1.95) |
Pat L | 4.79±0.22(4.50–5.00) | 6.22±0.30(5.90–6.50) | 5.25±0.38(4.90–5.65) | 5.35±0.13(5.25–5.50) |
Pat W | 1.98±0.14(1.82–2.15) | 2.63±0.15(2.50–2.80) | 2.08±0.15(1.95–2.25) | 2.28±0.06(2.25–2.35) |
Palm L | 4.80±0.56(4.20–5.50) | 6.93±0.40(6.50–7.30) | 5.55±0.53(5.00–6.05) | 5.75±0.18(5.55–5.90) |
Palm W | 2.66±0.22(2.45–2.90) | 3.60±0.26(3.40–3.90) | 2.98±0.25(2.70–3.15) | 2.95±0.38(2.55–3.30) |
Palm D | 3.70±0.27(3.35–4.00) | 5.17±0.25(4.90–5.40) | 4.22±0.33(3.85–4.50) | 4.43±0.23(4.20–4.65) |
FF L | 3.70±0.18(3.50–3.90) | 5.02±0.38(4.65–5.40) | 3.93±0.29(3.60–4.15) | 4.38±0.72(3.85–5.20) |
MF L | 4.69±0.41(4.15–5.10) | 6.67±0.60(6.10±7.30) | 5.30±0.35(4.90–5.55) | 5.30±0.18(5.15–5.50) |
Pect Teeth | 10.88±0.35(10–11) | 12.83±0.41(12–13) | 12.00±0.00(12) | 12.33±0.52(12–13) |