Cyphocoleus lescheni, 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 : 240

12. Cyphocoleus lescheni sp. n. Figures 75 , 81 , 103

Diagnosis.

Among the triplet of species with setose pronotal processes, Cyphocoleus lescheni can be diagnosed by: 1, presence of a carinate ridge between the anterior and posterior pronotal processes; 2, small, flat eyes, eight ommatidia crossed on a horizontal diameter; 3, elytra with seventh interval the most carinate, its convexity marking the border between a moderately flat disc bearing six intervals, and a much more vertical elytral margin with a pelage-seta bearing eighth interval. Standardized body length 5.0-5.4 mm.

Description

(n = 2). Head capsule elongate, genae parallel behind eyes, basally constricted to well-defined neck; frons convex between eyes, frontal grooves linear and moderately convergent anterad, widest at frontoclypeal suture; supraorbital setae absent; mandibles moderately elongate, length 1.9 × distance from antennal articulatory socket to anterolateral margin of labrum; antennae moderately elongate, apical antennomeres filiform; scape fusiform, broadened into a paddle-like shape, length 2.5 × maximal breadth; gena glabrous except for pelage, subgenal seta absent. Pronotum orbicular; anterior pronotal process short, apically obtuse, the process flattened longitudinally; posterior pronotal process columnar, peg-like, slightly more than twice as long as broad; lateral ridge joining two process a low rounded carina; pronotal median base constricted, surface undulated with median and two lateral depressions separate by low rounded longitudinal ridges, lateral depressions bordering outside by similar low, rounded lateral longitudinal ridges; median longitudinal impression finely incised, moderately deep; anterior transverse impression interpreted as a punctulate transverse groove that defines a rounded anterior collar, the collar broadest medially, terminated laterally anterad pronotal processes; proepipleuron and proepisternum bulging outward, visible in dorsal view; proepisternum smooth; prosternal process medially concave anteriorly near front of procoxae, deeply medially depressed on ventral face, broadly depressed medially on posterior face. Elytra narrow, elongate, with scutellum and parascutellar interval depressed relative to very carinate seventh interval, the carination of that interval greatest at base; parascutellar and dorsal setae absent; humeri extended anterad at base of seventh interval, basal margins straight and narrowly diverging posterad humeral angle to position laterad anterior three lateral elytral setae where the margins become subparallel posteriorly; lateral elytral setae arranged as 6 + 3 + 4, the setal articulatory sockets papillate, raised as mounds above the surrounding cuticle; subapical elytral seta present, apical seta absent; subapical sinuation distinctly concave, margin upraised at middle of concavity, the sinuation subangulately meeting lateral margin. Mesepisternum impunctate; metepisternal dorsal length 1.3 × diagonal width. Abdomen with apical margin of apical ventrite moderately concave medially in females, the middle pair of the four apical setae just laterad median concavity. Legs moderately elongate, gracile; mt1 length/tibial length = 0.21; mt4 length to apex of outer lobe 1.2 × median length, with 4-5 ventrolateral setae each side. Microsculpture of head and pronotal disc glossy, without microsculpture; elytral disc with intervals glossy, indistinct isodiametric (?) sculpticells in deepest portions of striae; pelage well developed, comprising club-like to paddle-like setae; head capsule densely covered with club-like setae that are longest on posterior portion of head capsule, about half a long on frons, and very short, scale-like anterad and below eyes; pronotal disc pelage consisting of setae much like present on posterior portion of head, pronotal processes and lateral ridges with apically broader, more paddle-like setae; elytral intervals lined with longitudinal series of club-like setae, the setae broader apically on odd intervals (sutural, 3, 5, 7), and shorter and narrower apically on even intervals; elytral lateral margin densely lined with short, thick setae; ventral body surface, femora and tibiae covered with very fine, apically narrowed microsetae; tarsomeres with and additional paired dorsolateral setae, four on mt1 and two on mt2-4. Coloration of head and pronotal disc rufous, pronotal lateral ridge somewhat darker due to deeper cuticle; elytra and abdominal ventrites rufoflavous, elytral lateral margin dark rufous (as in pronotal lateral carina); legs flavous.

Female reproductive tract (n = 1). Basal portion of one right gonocoxa available for study; basal gonocoxite with apical fringe of five setae; apical gonocoxite apparently subtriangular based on basal fragment, with two lateral ensiform setae.

Types.

Holotype female (EMEC deposited in MNHN) (body pointed, fused elytra mounted on platen): NEW CALEDONIA, Prov. / Nord L’Aoupinié 24-iii-2007 / R. Leschen rotten wood / berlesate NC076 800m el. / 21°11 ’S/165°17’ // UC Berkeley / EMEC / 1137861 (pixelated bar code) // Cyphocoleus revision / measure specimen 1 / J.K. Liebherr 2015 // HOLOTYPE / Cyphocoleus / lescheni / J. K. Liebherr 2016 (black-border red label).

Paratype female (EMEC): Aoupinié, 800 m el., 21°11'S, 165°17'E, Berlesate rotten wood, 24-iii-2007, Leschen.

Etymology.

We take great pleasure in naming this species for Dr. Richard A. B. Leschen, Curator, New Zealand Arthropod Collection and the collector of the two type specimens currently representing this species. Dr. Kipling W. Will is accorded author status based on his recognition of this species as undescribed from amongst the material collected during the 2007 New Zealand Arthropod Collection- University of California, Berkeley Essig Museum expedition.

Distribution and habitat.

Both types of this species were collected from leaf litter by Berlese extraction. The long club-shaped setae afford the means for a thick layer of environmental patina to adhere to the body surface.

Figures

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.

Figures 99 - 104. Dorsal habitus photographs of Cyphocoleus spp.: 99, Cyphocoleus miricollis, Foret Nord; 100, Cyphocoleus mirabilis female, environmental patina intact, Mt. Koghi; 101, Cyphocoleus mirabilis male, environmental patina removed, Mt. Koghi; 102, Cyphocoleus moorei female, environmental patina removed from forebody and right elytron, E. Table Unio; 103, Cyphocoleus lescheni female, environmental patina removed, elytra reassociated with dissected specimen, Aoupinie; 104, Cyphocoleus fasciatus male, teneral specimen lacking environmental patina, Mt. Panie.