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Contribution to the genus Filipinolotis Miyatake, 1994 (Coleoptera, Coccinellidae, Sticholotidini)
expand article infoYanqing Lv§, Xiaoning Zhang, Adam Ślipiński|, Yurong He, Xingmin Wang
‡ South China Agricultural University, Guangzhou, China
§ Zengcheng Entry-exit Inspection and Quarantine Bureau, Guangzhou, China
| CSIRO Ecosystem Sciences, Australian National Insect Collection, Canberra, Australia
Open Access

Abstract

The genus Filipinolotis Miyatake has been reviewed in this study. Descriptions and illustrations of two species (F. latefasciata Miyatake and F. purpuratorotunda Wang, Zhang & Ślipiński, sp. n.) in the Luzon island of the Philippines, are given. The male genitalia of F. latefasciata are described for the first time. A key to known species is also provided.

Keywords

Coccinelloidea, Coleoptera, Filipinolotis, Luzon, new species, Philippines, Sticholotidini

Introduction

The family Coccnellidae is an abundant species group of beetles. Ślipiński (2007) proposed a two subfamily system with Microweiseinae and Coccinellinae, merging Sticholotidini into an expanded concept of Coccinellinae (Escalona and Ślipiński 2012). The tribe Sticholotidini was defined by Gordon (1977) and Miyatake (1994). The final composition of Sticholotidini and the taxonomic status of many genera are not fully resolved (Ślipiński 2004). Coccinellid evolutionary history is borne out in previous molecular studies (Giorgi et al. 2009; Seago et al. 2011; Robertson et al. 2015).

Miyatake (1994) revised the Asian genera of the tribe Sticholotidini and proposed six new genera: Synonychimorpha, Chilocorellus, Sulcolotis, Filipinolotis, Mimoserangium, and Coelolotis for the species described from China, Philippines, and Vietnam. The genus Filipinolotis was erected with F. latefasciata Miyatake, 1994 as the type species from Luzon Island, Philippines. Filipinolotis is similar to Sticholotis except for some differences in characters of the hind wings (atrophied), antennae (shorter with distinct club), prosternal process (raised), and epipleura (broad). To date, F. latefasciata has been the only species in the genus Filipinolotis. In this paper, F. purpuratorotunda, sp. n. from Luzon Island in the Philippines is described and added to this genus.

Materials and methods

The specimens examined were collected from Luzon, Philippines. All materials were deposited at Australian National Insect Collection, CSIRO, Canberra, Australia (ANIC), South China Agricultural University, Guangzhou, China (SCAU), and Museum für Naturkunde in Berlin, Germany (MNB). External morphology was observed with a dissecting stereoscope (Zeiss Stemi 2000-cs). The following measurements were made with an ocular micrometer:

TL total length, length from apical margin of clypeus to apex of elytra;

TW=EW total width, width across both elytra at widest part;

TH height, from the highest part of the beetle to elytral outer margins;

HW head width in a frontal view, widest part including eyes;

PL pronotal length, from the middle of anterior margin to the base of pronotum;

PW pronotal width at widest part;

EL elytral length, along the suture, from the apex to the base including the scutellum.

Images were taken with digital cameras (AxioCam HRc and Coolsnap-Procf & CRI Micro*Color) connected to a dissecting microscope in the Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Agricultural Pest Biocontrol, Guangdong Province of South China. The software AxioVision Rel. 4.8 and Image-Pro Plus 5.1 were used to capture images from the cameras. Software Adobe Photoshop CC 2015 was used for cleaning up images.

Terminology follows Ślipiński (2007) and Ślipiński and Tomaszewska (2010). Type specimens designated in the present paper are deposited at ANIC and SCAU.

Taxonomy

Filipinolotis Miyatake, 1994

Filipinolotis Miyatake, 1994: 254. Type species: Filipinolotis latefasciata Miyatake, 1994.

Diagnosis

The genus Filipinolotis can be distinguished from other genera of the tribe Sticholotidini by the following characters: body rounded, glabrous, dorsum strongly convex (Figs 1a–c, 2a–c); antennae with 11 antennomeres (Figs 1e, 2e); hind wings atrophied; elytral epipleuron unevenly broadened; abdomen with five ventrites, abdominal postcoxal lines incomplete (Figs 1n, s, 2m).

Figure 1. 

Morphological characters of the genus Filipinolotis. a–t F. latefasciata Miyatake. a dorsal habitus b lateral habitus c frontal habitus d head, ventral e antenna f mandible g maxilla h labrum i labium j front leg k tarsal claws l prothorax, ventral m mesoventrite and metaventrite n male abdomen o penis p apex of penis q tegmen, lateral view r tegmen, ventral view s female abdomen t ovipositor.

Description

Body rounded, dorsum strongly convex and glabrous (Figs 1a–c, 2a–c). Head smooth, with sparse short hairs (Figs 1c, 2c). Antennae with 11 antennomeres, scape and pedicel robust, pedicel shorter than scape; flagellum 9-segmented, gradually broadening towards apex, last-three antennomeres forming a fusiform club (Figs 1d–e, 2d–e).

Figure 2. 

Filipinolotis purpuratorotunda sp. n. a dorsal habitus b lateral habitus c frontal habitus d head, ventral e antenna f mandible g maxilla h labrum i labium j front leg k prothorax, ventral l mesoventrite and metaventrite m abdomen n penis o apex of penis p tegmen, ventral view q tegmen, lateral view.

Clypeus protruded with anterior margin slightly emarginate at middle (Figs 1c, 2c). Labrum transverse, narrowly rounded and covered with dense, long setae (Figs 1h, 2h). Mandible with two apical teeth, sharp and smooth without additional denticles (Figs 1d, f, 2d, f). Maxillary palp 4-segmented with terminal segment cut obliquely at apex (Figs 1d, g, 2d, g). Labial palpomere 3-segmented, with robust 2ndsegment and slender terminal segment, ligula membranous and plump, insertion of labial palps is anterior on the prementum (Figs 1i, 2i).

Pronotum transverse, strongly convex, emarginate at anterior margin, hind margin bent into a curved shape; lateral margin slightly oblique, with fine groove continuing towards basal corner from anterior corner, anterior angles rounded and smooth, hind angles obtuse and smooth (Figs 1a–c, 2 a–c). Scutellum minute, triangular (Figs 1a, c; 2a, c). Elytra without humeral angles, strongly convex, almost as wide at anterior margin as hind margin of pronotum, lateral margins extremely narrow; lateral margins with narrow rim, invisible from above (Figs 1a–c, 2a–c). Hind wings atrophied.

Prosternum T-shaped. Prosternal process narrowed, less than 0.6 times width of coxal diameter and not prominent anteriorly between coxae, prosternal carinae present and fan-shaped (Figs 1l, 2k). Mesoventrite trapezoid-shaped, coarsely keeled on the anterior edge, metaventrite as long as mesoventrite (Figs 1m, 2l). Elytral epipleuron wide and uneven, gradually narrowed to apex. Legs with pubescence rather dense, coxae square-shaped, obvious robust; trochanter triangular, robust; femora thick, deeply grooved beneath for tibiae when retracted; length of tibia subequal to femur, slender, and widening but not angulate outwardly; tarsi 4-segmented; claws simple and slender, without teeth (Figs 1j, k, 2j). Abdomen with five ventrites in both sexes, ventrite 1 length measured below coxal cavity, almost as long as ventrites 2nd to 4th combined, abdominal postcoxal lines incomplete, not recurved but meeting hind margin of ventrite 1 (Figs 1n, s, 2m).

Male genitalia: tegmen stout, basal piece with distinct strut and additional, dorsal strut-like projection, parameres well developed and setose apically. Penis uniformly tubular, curved (Figs 1o–r, 2n–q).

Female genitalia: coxites long triangular with interior margin slightly emarginate, setose apically; styli conspicuous (Figure 1t).

Distribution

Philippines.

Key to the species of Filipinolotis

1 Pronotum reddish yellow, elytra blackish and shiny, with a broad transverse reddish yellow band in middle (Figure 1a–c); apex of penis gradually narrowing down (Figure 1o, p); penis guide of tegmen in ventral view broad and flat, rounded with uniform setae apically (Figure 1q, r) F. latefasciata Miyatake
Pronotum and elytra purplish to black, shiny, without any spots (Figure 2a–c); apex of penis tubular with membranous gonopore at apex (Figure 2n, o); penis guide of tegmen in ventral view narrow and symmetrical, horn-shaped apically (Figure 2p, q) F. purpuratorotunda Wang, Zhang & Ślipiński, sp. n.

Filipinolotis latefasciata Miyatake, 1994

Figure 1

Filipinolotis latefasciata Miyatake, 1994: 255

Diagnosis

This species can be recognized by the following combination of characters: pronotum reddish yellow, elytra blackish shiny with a broad transverse reddish yellow band in the middle (Figure 1a–c); penis guide of tegmen in ventral view broad and flat, with a rounded apex, parameres narrow and almost straight with dense setae at apices (Figure 1q–r); penis uniformly tubular, curved, gradually narrowing to apex (Figure 1o–r).

Description

TL: 1.92–2.3 mm, TW: 1.86 mm, TH: 1.35–1.38 mm, TL/TW: 1.03–1.24; PL/PW: 0.38–0.42; EL/EW: 0.89–1.08; HW/TW: 0.39; PW/TW:0.67–0.74.

Head reddish yellow (Figure 1c, d). Pronotum reddish yellow (Figure 1a–c). Scutellum blackish shiny (Figure 1a, c). Elytra blackish and shiny, with a broad transverse reddish yellow band at middle, covering almost half of elytra (Figure 1a–c). Underside blackish brown, except claws yellowish.

Body rounded, dorsum strongly convex and glabrous (Figure 1a–c). Head large, with sparse short golden pubescence (Figure 1d). Pronotum glabrous with uniformly minute and dense punctures (Figure 1a–c). Elytra convex, entire surface uniformly punctate (Figure 1a–c). Elytral epipleuron with sparse golden pubescence. Prosternum with sparse golden pubescence and inconspicuous punctures (Figure 1l). Mesoventrite and metaventrite with sparse golden pubescence and inconspicuous punctures, mesoventrite with narrow intercoxal process, chin piece formed on the anterior margin of mesoventrite; metaventrite short, as wide as mesoventrite (Figure 1m). Legs with dense golden pubescence (Figure 1j, k). Abdomen with sparse golden hairs and uniform punctures (Figure 1n, s).

Male genitalia (Figure 1o–r). Tegmen stout and symmetrical, penis guide in lateral view wide at base and gradually narrowing to pointed apex, the basal 2/3 with membranous prominence; in ventral view broad and flat, rounded apically; parameres narrow and almost straight with dense setae at apices (Figure 1q–r), phallobase membranous. Penis simple tubular, curved, gradually narrowing along apical third to pointed apex, penis capsule membranous, without inner arm (Figure 1o–p).

Material examined

Philippines: 1 male, Mt. Polis, Lepanto, Luzon Prov., Böttcherleg (MNB); 1 female, Mt. Data, Mountain, Luzon Prov., 7500 ft, 23.iv.1946; 1 male Philippines, Luzon (ANIC).

Distribution

Philippines (Luzon).

Filipinolotis purpuratorotunda Wang, Zhang & Ślipiński, sp. n.

Figure 2

Diagnosis

This species is similar to F. latefasciata Miyatake but it can be distinguished from the latter as follows: body uniformly black with purple shine, without spots (Figure 2a–c); penis guide of tegmen in ventral view narrow with a nipple-shaped apex (Figure 2p, q); apex of the penis truncate, membranous (Figure 2o). In F. latefasciata, pronotum reddish yellow, elytra blackish and shiny, with a broad transverse reddish yellow band in the middle (Figure 1a–c); penis guide of tegmen in ventral view broad and flat, with rounded apex (Figure 1r); apex of the penis pointed (Figure 1o, p).

Description

TL: 1.99–2.63 mm, TW: 1.84–2.55 mm, TH: 1.28–1.8 mm, TL/TW: 1.03–1.08; PL/PW: 0.40–0.49; EL/EW: 0.93; HW/TW: 0.34–0.39; PW/TW: 0.59–0.60.

Color: Head, pronotum, scutellum, elytra purplish shiny black, without spots (Figure 2a–c). Underside blackish brown, except yellowish claws.

Body rounded, dorsum strongly convex and glabrous (Figure 2a–c). Head large with scattered short golden pubescence (Figure 2c, d). Pronotum glabrous, with uniformly distributed punctures (Figure 2a–c). Scutellum of isosceles triangle shape (Figure 2a, c). Elytral surface uniformly punctate (Figure 2a–c). Prosternum, mesoventrite, and metaventrite with scattered golden pubescence and inconspicuous punctures (Figure 2k, l). Elytral epipleuron with uniform golden pubescence. Legs with dense golden pubescence (Figure 2j, l). Abdomen with sparse golden pubescence and uniformly distributed punctures (Figure 2m).

Male genitalia. Tegemen stout and symmetrical, tegminal strut stout and straight; penis guide in lateral view almost straight and gradually narrowing along apical third to pointed apex, with membranous prominence at basal half; in ventral view narrowest at base and gradually broadening to apex, then strongly narrowed to form a nipple-shaped apex; parameres with dense long setae apically, longer than penis guide; phallobase membranous (Figure 2p, q). Penis uniformly tubular, curved, basal capsule membranous, without distinct arms; apex of penis subtruncate with membranous appendage (Figure 2n, o).

Types

Holotype: Philippines: 1 male, La Trinidad, Luzon Prov., 1300m, 4–5.IV.1968, Benqae (ANIC); Paratypes: Philippines: 1 male, Island of Basilan, Baker (ANIC); 1 male, Disimungal, Madela, Quirino, Eastern Luzon, XII.2014 (SCAU).

Disribution

Philippines (Luzon).

Etymology

The name purpuratorotunda is composed of the word purpuratus, which refers to the purplish color of the body and rotundus, referring to the rounded body shape.

Acknowledgements

We are grateful to Prof. Shaukat Ali (SCAU) who revised the English. The research was supported by National Natural Science Foundation of China (31501884), Science and Technology Planning Project of Guangdong Province (2017A020208060), the Science and Technology Program of Guangzhou (201804020070, 151800033).

References

  • Miyatake M (1994) Revisional studies on Asian genera of the subfamily Sticholotidinae (Coleoptera: Coccinellidae). Memoirs of the College of Agriculture, Ehime University 38: 254–256.
  • Gordon RD (1977) Classification and phylogeny of the New World Sticholotidinae (Coccinellidae). Coleopterists Bulletin 31: 185–228.
  • Giorgi JA, Vandenberg NJ, Mchugh JV, Forrester JA, Ślipiński SA, Miller KB, Shapiro LR, Whiting MF (2009) The evolution of food preferences in Coccinellidae. Biological Control 51: 215–231. https://doi.org/10.1016/j.biocontrol.2009.05.019
  • Robertson JA, Ślipiński SA, Moulton M, Shockley FW, Giorgi A, Lord NP, Mckenna DD, Towaszewska W, Forrester J, Miller KB, Whiting MF, Mchugh JV (2015) Phylogeny and classification of Cucujoidea and the recognition of a new superfamily Coccinelloidea (Coleoptera: Cucujiformia). Systematic Entomology: 1–34. https://doi.org/10.1111/syen.12138
  • Seago AE, Giorgi JA, Li J, Ślipiński SA (2011) Phylogeny, classification and evolution of ladybird beetles (Coleoptera: Coccinellidae) based on simultaneous analysis of molecular and morphological data. Molecular Phylogenetics and Evolution 60: 137–151. https://doi.org/10.1016/j.ympev.2011.03.015
  • Ślipiński SA (2004) Revision of the Australian Coccinellidae (Coleoptera). Part 2. Tribe Sticholotidini. Annales Zoologici (Warszawa) 54: 389–402.
  • Ślipiński SA (2007) Australian ladybird beetles (Coleoptera: Coccinellidae) their biology and classification. ABRS, Canberra, 56 pp.
  • Ślipiński SA, Tomaszewska W (2010) Coccinellidae Latreille, 1802. In: Leschen RAB, Beutel RG, Lawrence JF (Eds) Handbook of Zoology, Vol. 2, Coleoptera. Walter de Gruyter GmbH & Co. KG, Berlin/New York, 454–472.