Research Article |
Corresponding author: José Manuel Pereira ( josse33@hotmail.es ) Academic editor: Michael Thomas
© 2018 Jose Carlos Otero, José Manuel Pereira.
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:
Otero JC, Pereira JM (2018) A new species and a key to the species of Corticarina from Guatemala (Coleoptera, Latridiidae). ZooKeys 786: 69-73. https://doi.org/10.3897/zookeys.786.26553
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A new species of Corticarina Reitter, 1881 (Coleoptera: Latridiidae), Corticarina oscargloriorum sp. n. from Guatemala is described and illustrated. The differential diagnosis is established in relation to a group of other species of the genus.
Corticarina oscargloriorum sp. n., Guatemala, new species, taxonomic key, taxonomy
Latridiidae is a moderately large family with approximately 500 species which is represented in all major biogeographic regions. The genus Corticarina is distributed in the Holarctic, Neotropical, Afrotropic and Oriental regions (
The terminology and the measurements of the new species follow
Abbreviations:
L length;
WL width/length ratio;
E eccentricity of the eyes (width/half of the length).
The width is measured across the widest part of a line joining the anterior and posterior limit of the eye. Length is the maximum length of the eye. L is used for length in dorsal view, W for width, and Ø for diameter.
Institutional abbreviations:
Corticarina truncatella Mannerheim, 1844
Head generally much narrower than the pronotum. Pronotum rather broad, usually strongly curved at the sides, with or without a circular post median impression; hind angles clearly toothed. Basal segment of the tarsi (especially the hind) strongly produced ventrally so that its apex almost reaches the apex of the second segment; second tarsomere reduced, arising dorsally from the basal segment nearly at the middle. Male: front tibia with a tooth situated at or a little in front of the middle; aedeagus strongly sclerotized, asymmetrical, the ostium ventral and covered with a plate which is usually strongly projecting apically.
“Holotype m*. GUATEMALA. Jalapa, Pino Dulce, Mataquescuintla, 14.5256528°N, 90.1453500°W, 28.X.2016, 2.400 m”. Holotype placed in Coll. J. C. Otero (
Morphologically, Corticarina oscargloriorum is very similar to other Corticarina in many external features, but can be distinguished by the configuration of the male genital apparatus and the features in the key below.
Length: 1.1 mm. Body oval, convex and little bright (Figure
Head (Figure
Pronotum (Figure
Elytra 1.5 times as long as wide. Callosity humeralwell-marked and posteriorly prolonged until becoming slightly carenated in the humeral region. Pubescence short (L = 0.016–0.018 mm) and recumbent. Punctation fine (Ø = 0.014 mm) and sparse. Six abdominal sternites visible. Male pro-tibiae with a tooth on internal apical third.
Aedeagus (Figs
This species is dedicated to Óscar Medinilla and Gloria de Dios, Guatemala.
Guatemala.
1 | Tenth antennomere distinctly transverse; ninth squared. Spine of male pro-tibiae on the last quarter of the internal margin. Aedeagus (Fig. |
guatemalica Johnson |
– | Tenth antennomere as long as wide or longer than wide | 2 |
2 | Ninth antennomere conical, wider than long; tenth as long as wide. Light brown; legs yellowish grey-brown; antennae pale on the base however darkening towards the apex. Spine of male pro-tibiae in the middle of the internal margin. Aedeagus (Fig. |
conjuncta Johnson |
– | Ninth antennomere markedly longer than wide | 3 |
3 | Pale colour; head and pronotum slightly darker; antennae and legs entirely (except for the antennal club) yellowish grey-brown. Ninth antennomere conical and longer than wide; tenth longer than wide and slightly shorter than ninth. Spines of male pro-tibiae arranged on the middle of the internal margin. Aedeagus (Fig. |
impensa Johnson |
– | Yellowish grey-brown; antennae (except for the two first articles) and tibiae dark greybrown; two first articles of the antennae and legs yellowish grey-brown. Ninth antennomere (Fig. |
oscargloriorum sp. n. |
Four species for Corticarina have been recorded from the Guatemala to date, and the four species are known to the authors. Morphologically, Corticarina oscargloriorum is very similar to other Corticarina which are remarkably uniform in appearance. Their male genitalia fortunately provide excellent diagnostic characters and are thus essential for identification.
We would like to thank Dr. W. H. Rücker for comments and suggestions, and we appreciate the corrections made by the reviewers.