Cyphocoleus lissus, Liebherr, 2016

Liebherr, James K., 2016, Cyphocoleus Chaudoir (Coleoptera, Carabidae, Odacanthini): descriptive taxonomy, phylogenetic relationships, and the Cenozoic history of New Caledonia, Deutsche Entomologische Zeitschrift 63 (2), pp. 211-270 : 227

1. Cyphocoleus lissus sp. n. Figures 47 , 51 , 60 , 66 , 76

Diagnosis.

Dorsal body surface smooth, glossy, with cyanotic iridescent reflection on elytral disc due to dense transverse microsculpture, antennae and legs contrastedly pale than dark body; head stout, broadest at juncture with prothorax, eyes small in diameter with outer surface extremely convex (Fig. 47 ), 16 ommatidia across horizontal diameter of eye; only posterior supraorbital seta present each side, anterior seta absent; pronotal disc extremely smooth, the lateral marginal bead convexly continuous across the median base in an even arc; elytral humeri broadly rounded, the humerus anterad the depressed scutellum; elytra with anterior and medial dorsal elytral setae, the posterior seta absent; standardized body length 6.7-8.2 mm.

Description

(n = 5). Head capsule stout, frons broadly convex, the frontal grooves irregularly doubled anteriorly near clypeus; mandible length 2.0-2.1 × distance from anterior margin of antennal articulatory socket to anterolateral margin of labrum; antennae filiform, moderately elongate, scape length 2.55 × maximal breadth; eyes convex, but ocular ratio low due to very broad frons, MHW/mFW = 1.42-1.48; subgena without fixed macroseta. Pronotum orbicular, hind angles completely untraceable due to evenly convex lateral and basal margin; front angles briefly protruded; notum only slightly wider than long, MPW/PL = 1.03-1.07; median longitudinal impression shallow, finely incised on disc, terminated basally in a well-defined dimple; anterior transverse impression traceable as obsolete impressed line, anterior convexity flat; proepisternum not visible from above; prosternal process convex anteriorly, with deep median groove on ventral surface that continues onto posterior face. Elytral disc moderately convex, moderately broad, MEW/EL = 0.71-0.78; elytral intervals moderately and subequally convex across disc; striae indistinctly punctate to smooth, deep and well defined throughout length and in association with lateral elytral intervals; parascutellar seta present, articulatory socket not upraised; lateral elytral setae arranged as (5)6 + 1 + 7(8), the setal articulatory sockets not upraised above surface; both apical and subapical setae present; subapical sinuation moderately incised, convexly meeting lateral margin; apical margins of fused elytra rounded, the elytral apices slightly separated by curvature at suture. Mesepisternum smooth; metepisternum shorter than broad, dorsal length/diagonal width 0.80. Legs of moderate length, mt1 length/tibial length = 0.26; metacoxae bisetose; dorsal surfaces of tarsomeres with two dorsolateral rows of elongate setae; mt4 length to apex of outer lobe 1.6 × median length, 3-4 ventrolateral setae each side. Abdomen with apical margin of apical ventrite broadly and very shallowly excavated to evenly convex; apical ventrite of male with one seta each side, of female with two setae each side. Microsculpture well developed on frons, consisting of isodiametric to slightly transversely stretched sculpticells; pronotum with dense transverse mesh over disc, but with isodiametric mesh medioapically on anterior margin; elytral intervals with dense transverse-line microsculpture; entire body surface with sparse pelage of fine microsetae, microsetae longer on frons and ventral body surface and shorter on pronotal disc and elytra. Coloration of head capsule rufopiceous; antennae pale throughout, brunneotestaceous; pronotum, proepipleuron and prosternum piceous; elytra rufopiceous basally, dark rufous apically; elytral epipleuron rufous; metepisternum piceous; abdomen rufobrunneous, ventrite 6 narrowly rufoflavous apically; femur, tibiae and tarsi flavous.

Male genitalia (n = 1). Male aedeagal median lobe robust, broadly parallel sided from base to apex of ostial opening, dorsoventral breadth at midlength 0.25 × distance from tip to base of closed basal bulb (Fig. 51 ); lobe shaft slightly melanized, the internal sac visible through lobe wall in uneverted position; lobe apex parallel-sided, length distad ostial opening 2.5 × dorsoventral breadth; tip of lobe narrowly rounded, slightly upcurved.

Female reproductive tract (n = 1). Bursa copulatrix vase-shaped, basally stalked, distance from base of gonocoxites to spermathecal basal sclerite 2.75 × maximum breadth (dissection compressed under cover slip) (Fig. 60 ); bursal walls thin, translucent, with broad band of short spicules lining lumen near midlength; basal gonocoxite with apical fringe of five setae (Fig. 66 ); apical gonocoxite acuminate with two lateral ensiform setae.

Types.

Holotype female (QMB deposited in MNHN): NEW CALEDONIA / Mt. Rembai, 700-900 m / 9 May, 1984 / G. Monteith & D. Cook // QUEENSLAND / MUSEUM LOAN / DATE: April 2004 / No. LE 04.16 (green label) // female habitus photo / J.K. Liebherr 2015 // Cyphocoleus revision / measured specimen 1 / J.K. Liebherr 2015 // HOLOTYPE / Cyphocoleus / lissus / J.K. Liebherr 2016 (black-bordered red label).

Paratypes (5 specimens). NEW CALEDONIA: Aoupinié, top camp, rainforest, 850 m el., Berlese sieved litter, 21°11'S, 165°18'E, 23-xi-2001, Monteith (QMB, 1; lot no. 1045); Ningua Res. camp, 1100 m el., pyrethrum trees & logs, 21°45'S, 166°09'E, 12-13-xi-2001, Burwell & Monteith (QMB, 1; lot no. 8639); Mt. Do, summit, 1000 m el., 21°45'S, 166°00'E, 21-22-xi-2003, Monteith (QMB, 1; lot no. 11421), forest litter 21°45'S, 166°00'E 03-xii-2009, Schuh (NMHW, 1); Mt. Humboldt, moss forest, 1400 m el., night collecting, 21°53'S, 166°24'E, 06-xi-2002, Burwell, Monteith & Wright (QMB, 1; lot no. 11139).

Etymology.

The Latinized adjectival species epithet lissus is based on the Greek lissos, smooth ( Brown 1956), signifying the smooth body surface of beetles comprising this species (Fig. 47 ).

Distribution and habitat.

Beetles of this species have been found at elevations from 700-1400 m, at localities ranging from Aoupinié to the north and Mt. Humboldt on the south (Fig. 76 ). Habitats include moss forest and rainforest, with specimens collected via pyrethrin fog of trees and logs, as well as in ground litter.

Figures

Figures 47 - 50. Dorsal habitus photographs of Cyphocoleus spp.: 47, Cyphocoleus lissus female, Mt. Humboldt; 48, Cyphocoleus prolixus male, Mt. Humboldt; 49, Cyphocoleus heterogenus male, Yahoue; 50, Cyphocoleus parovicollis male, Pic d'Amoa.

Figures 51 - 59. Male aedeagal median lobe and associated parameres of Cyphocoleus spp., dextral view: 51, Cyphocoleus lissus, Mt. Humboldt; 52, Cyphocoleus prolixus, Mt. Humboldt; 53, Cyphocoleus heterogenus, Yahoue; 54, Cyphocoleus heterogenus, internal sac everted, La Foa; 55, Cyphocoleus parovicollis, Me Maoya; 56, Cyphocoleus parovicollis, internal sac everted, Me Maoya; 57, Cyphocoleus ovicollis, Ningua Res.; 58 - 59, Cyphocoleus ovicollis, internal sac everted, Mt. Do; 58, laevoventral view; 59, dextrodorsal view. Scale bars, 1.0 mm: horizontal scale for figures with transverse orientation; vertical scale for figures with vertical orientation.

Figures 60 - 65. Female reproductive tract, ventral view, for Cyphocoleus spp.; 60, Cyphocoleus lissus, Mt. Humboldt; 61, Cyphocoleus prolixus, Mt. Humboldt; 62, Cyphocoleus heterogenus, Yahoue; 63, Cyphocoleus parovicollis, Mandjelia; 64, Cyphocoleus monteithi, Mt. Mou; 65, Cyphocoleus miricollis, Foret Nord. For abbreviations see Table 1.

Figures 66 - 75. Female right gonocoxae, ventral view, for Cyphocoleus spp. illustrating apical fringe setae of basal gonocoxite 1, and two or three lateral ensiform setae, one dorsal ensiform seta, and two apical nematiform setae on apical gonocoxite 2; 66, Cyphocoleus lissus, Mt. Humboldt; 67, Cyphocoleus prolixus, Mt. Humboldt; 68, Cyphocoleus heterogenus, Yahoue; 69, Cyphocoleus parovicollis, Mandjelia; 70, Cyphocoleus ovicollis, Ningua Res.; 71, Cyphocoleus burwelli, Mt. Humboldt; 72, Cyphocoleus monteithi, Mt. Mou; 73, Cyphocoleus miricollis, Foret Nord; 74, Cyphocoleus mirabilis, Mt. Koghi; 75, Cyphocoleus lescheni, apical gonocoxite damaged, Aoupinie. Scale bar, 0.10 mm.

Figures 76 - 81. Distribution maps of Cyphocoleus spp.: 76, Cyphocoleus lissus; 77, Cyphocoleus heterogenus, Cyphocoleus prolixus; 78, Cyphocoleus parovicollis, Cyphocoleus ovicollis; 79, Cyphocoleus burwelli, Cyphocoleus angustatus, Cyphocoleus monteithi; 80, Cyphocoleus miricollis, Cyphocoleus fasciatus; 81, Cyphocoleus mirabilis, Cyphocoleus moorei, Cyphocoleus lescheni.