Foveocrotaphus burmanicus, Anichtchenko, Alexander, 2014

Anichtchenko, Alexander, 2014, Foveocrotaphus gen. n. and F. burmanicus sp. n.: a new genus and species of Physocrotaphini from Myanmar (Coleoptera: Carabidae: Anthiinae), Zootaxa 3786 (1), pp. 85-90 : 86-90

Foveocrotaphus burmanicus n. sp.

( Figs. 1–9 )

Types. Holotype, male: Myanmar N ( Burma), 65 km NE Putao, 1250m, Zi Yar Dam vill., 18– 21.05.1998, leg. S. Murzin & V. Siniaev (DUBC).

Description. Measurements. Length: 17 mm; width: 6 mm. Ratios width /length of pronotum: 1.3; width of pronotum / width of head: 0.9; length / width of elytra: 1.76.

Colour. Dark brown, femora weakly paler.

Head. Large, slightly wider than pronotum, widest between eyes. Surface smooth without microreticulation and punctures, shiny.

with two deep, elongate, irregularly sinuate frontal impressions, neck separated from frons by a very deep, transverse, X-shaped sulcus. Eyes small, semicircular, remarkably projecting. Supraocular sulci deep and convergent on vertex; disappearing in deep, rounded foveae behind eyes. Genae convex, large and sparsely setose; weakly wrinkled. Anterior supraorbital seta removed from supraocular sulci, placed near inner margin at about anterior third of eye, posterior supraorbital seta situated at anterior margin of transverse sulcus. Clypeus smooth, with two long setae on either side. Labrum 6-setose; anterior angles pointed, asymmetrical, right angle longer than the left (This feature was not included in the diagnosis of genus, because only one specimens known. Probably, asymmetrical labrum would be a generic feature); anterior margin with distinct median depression; lateral margins parallel, serrate in apical half. Mandibles long, weakly arcuate; ventral furrows long. Palpi narrow and elongate, apical palpomere with sparse and short pilosity. Mentum with triangular median tooth, with 2 long and 3 short setae on either side. Ligula rather short, apically transverse, bisetose, paraglossae apically separated from glossa, membraneous, narrow, distinctly longer than ligula ( Fig. 5). Lacinia elongated, with a dense row of elongated teeth. Galea narrow, slightly curved. Antenna elongate, surpassing base of pronotum (last two antennomeres missing) pilose from basal antennomere; scape elongate; antennomere 2 more than half the length of 3; antennomeres 3 and 4 of the same length, antennomeres 5–11 flattened, with a mat, strongly microsculptured stripe along middle of dorsal and ventral surfaces, laterally chagreened and setose.

Pronotum. Comparatively small, narrower than head, widest near anterior angles. Apical margin moderately sinuate, with a dense fringe of short hairs medially, without marginal border. Anterior angles widely rounded. Lateral borders anteriorly strongly convex, in posterior third with deep sinuation. Base narrower than apex. Basal angles rectangular, with a tiny denticle. Anterior marginal seta situated at greatest pronotal width, posterior marginal seta situated at basal angle. Lateral explanation wide and deep, lateral margin strongly reflexed at base. Anterior and posterior transverse sulci shallow. Median line faintly impressed, neither reaching apex nor base. Basal grooves deep. Disc of pronotum sparsely and irregularly punctate and pilose, slightly transversely wrinkled. Microreticulation well visible, transverse.

Elytra. Fairly elongate, laterally subparallel, with weak sinuation in anterior third. Humerus evenly rounded. Apex with wide membraneous area. Marginal channel narrow anteriorly, relatively wide in the middle. Striae lightly impressed, punctate, intervals weakly convex. Each interval with 2–3 irregular rows of setiferous pores from base to apex. Setae as long as first interval of elytra. Microreticulation extremely superficial and fine, consisting of rather transverse meshes. Lateral border not serrate, sparsely pilose. Fully winged.

Lower surface. Propleura completely smooth. Prosternum unevenly punctate and rugose, with numerous moderately long setae throughout. Metasternum comparatively densely punctate and setose at sides, abdominal sternites with sparser pilosity. Metepistemum sparsely and finely punctate, elongate, more than twice as long as wide. Male sternites 2 and 3 with one big shared median depression with dense cluster of long filamentous setae. Terminal sternite in male on either side with 2 elongate setae near margin.

Legs. Slender and elongate. Protibia sulcate on upper surface. Profemur with long and dense setae on ventral surface in basal third, mesofemur and metafemur with less dense and shorter setae at base of posterior surface.

Male genitalia. Genital ring suboviform, slightly asymmetric, strongly sclerotized. Aedegus gently curved, apex elongate, slightly downturned at narrowly rounded apex. Left paramere large, with obliquely cut apex. Right paramere small and elongate. Endofallus asymetrical, with numerous protuberances; gonopore situated apically ( Figs. 6–9 ).

Etymology. The specific name of new species is derived from its type locality “ Burma “ (= Myanmar) - “ burmanicus “.

Figures

FIGURE 1. Habitus of Foveocrotaphus burmanicus n. sp.

FIGURES 2 – 4. Foveocrotaphus burmanicus, n. sp.: 2 — head ventral view; 3 — pronotum ventral view; 4 — abdomen.

FIGURES 6 – 9. Aedeagus and endofallus of Foveocrotaphus burmanicus, n. sp.: 6 — dorsal view; 7 — ventral view; 8 — left view; 9 — right view; go—gonopore.