Deinopteroloma draco Shavrin & Smetana

Smetana, Aleš, 2016, Nine new species of the genus Deinopteroloma Jansson, 1946 (Coleoptera: Staphylinidae: Omaliinae: Anthophagini) from China and Vietnam, Zootaxa 4196 (2), pp. 221-249 : 229-230

Deinopteroloma draco Shavrin & Smetana , sp.n.

( Figs. 2 , 45, 52 , 59 , 65 )

Type material examined: Holotype ♀ [plastic plate with abdominal tergite VIII, sternite VIII and genital segment in Canadian balsam was pinned under the plate with beetle; specimen without left protarsomeres 3−5]: “P.R. CHINA, Sichuan, \ E slope Gongga Shan , \ N29°34ʹ05ʹʹ E101°58ʹ / 57ʹʹ, 03.vi.2011, 3136m \ sift09, V.Grebennikov ” [rectangular printed label], “ HOLOTYPE \ Deinopteroloma \ draco sp. n. \ Shavrin A.V. & Smetana A. des. 2016” [red rectangular printed label] (temporarily in CNC, to be eventually deposited in IZAS) .

Description. Measurements: HW: 1.00; HL: 0.76; OL: 0.30; AL: 1.81; PL: 1.00; PW: 1.55; ElL: 2.75; EW: 1.82; TL: 4.90.

Body and legs reddish brown, apical and middle portions of head, lateral sides of pronotum and antennomeres 1−4 paler, rufotestaceous; mouthparts and tarsi yellow. Dorsal surface of body shiny, without microsculpture except apical part of clypeus with tender and irregular transverse lines. Infraorbital ridges with slightly rugose and irregular small punctation, with well visible several scattered small punctures between ocelli; disc of pronotum with coarse, very irregular punctation on middle elevation and with finer punctation along posterior pronotal margin, lateral sides of pronotum with irregular punctation more distinct in posterior half; scutellum with a few large punctures on middle portion; each elytron with sutural stria represented by row of serial punctures along suture and with four more or less regular longitudinal rows of coarse punctures becoming finer and not serrially arranged toward apex of each elytron, lateral half of each elytron with very coarse not serial punctation. Habitus as in Fig. 2 .

Head 1.3 times as wide as long; clypeus smooth, vertex elevated with symmetrical lateral triangular impressions in middle portion and with indistinct semicircular impression in front of ocelli, infraorbital ridges strongly impressed between postero-lateral margins of each eye and ocellus; head with small narrow elevations in front of each ocellus and with longitudinal keel-shaped elevation between ocelli; eyes large, convex; very small sharp postocular ridge situated close to posterior margin of eye, distance about one fourth of length of eye seen from above; ocelli large, almost on one level with postocular ridges, distance between ocelli distinctly larger than distance between ocellus and posterior margin of eye. Antenna reaching one-third of elytral length when reclined; measurements of antennomeres: 1: 0.27 × 0.10; 2: 0.17 × 0.07; 3−5: 0.17 × 0.05; 6−7: 0.15 × 0.06; 8: 0.12 × 0.07; 9: 0.12 × 0.08; 10: 0.11 × 0.10; 11: 0.21 × 0.10.

Pronotum transverse, 1.5 as wide as long, considerably wider than head, strongly constricted after middle; apical margin distinctly wider than posterior margin, sinuately emarginated; anterior protruding angles with lateroapical tooth slightly curved backwards, lateral margins very coarsely crenulate, more narrowed posteriad than anteriad, with moderately large curved tooth between middle crenulation and posterior angles of which each is marked as acute dent; disc of pronotum with irregular middle elevation and indistinct, interrupted median longitudinal impression, elevation bordered posteriorly by indistinct triangular impression; lateral portions of pronotum very explanate and distinctly reflexed, each with very deep pit at middle.

Elytra elongate, very convex, 1.5 times as long as wide; intervals between rows of punctures with small acute tubercles longitudinally arranged in basal third of disc of each elytron, with more convex pyramidal tubercles in middle part, smaller indistinct tubercles in apical third and markedly expressed pyramidal humeral elevations in latero-apical portions.

Male unknown.

Female. Apical margin of abdominal tergite VIII ( Fig. 45 ) straight. Abdominal sternite VIII ( Fig. 52 ) with lateral margins slightly sinuate apically and with apical margin rounded. Genital segment as in Fig. 59 .

Differential diagnosis. Based on very developed convex elevations on the elytra, D. draco sp.n. belongs to the insigne subgroup of notabile group of species (see above). From all related species it differs by the characteristic shape of lateral part of pronotum with strong, long constriction after the middle and by the very coarse crenulation of anterior part of lateral margin (related species with short constriction before posterior angles and with moderately coarse crenulation of lateral margins).

Distribution. The new species is known only from the type locality ( Fig. 65 ) in the Gongga Shan range in Sichuan, China.

Bionomics. The specimen was taken by sifting forest floor litter at elevation of 3136 m a.s.l.

Etymology. The specific epithet is the Latin noun draco , - onis, m, the dragon, the legendary creature in Chinese mythology. It refers to very coarsely crenulated lateral margins of pronotum that are reminiscent of body parts of painted Chinese dragons.

Figures

FIGURES 65. Distribution of Deinopteroloma: D. bisbisinuatum (black circle), D. draco (white circle), D. emeicola (black square), D. minor (white square), D. rougemonti (black triangle), D. ruzickai (white triangle), D. sextuberculatum (black star), D. vesiculosum (white star), D. yinyang (white rhomb). Rectangular are shown in more detail in Fig. 66.

FIGURES 1 – 4. Habitus of Deinopteroloma: 1 — D. bisbisinuatum (holotype), 2 — D. draco (holotype), 3 — D. minor (paratype), 4 — D. rougemonti (paratype). Scale bar: 1.0 mm.

FIGURES 44 – 57. Female abdominal tergite VIII (Figs. 44 − 50) and sternite VIII (Figs. 51 − 57) of Deinopteroloma: 44, 51 — D. bisbisinuatum, 45, 52 — D. draco, 46, 53 — D. emeicola, 47, 54 — D. minor, 48, 55 — D. ruzickai, 49, 56 — D. sextuberculatum, 50, 57 — D. yinyang. Scale bar: 0.2 mm.

FIGURES 58 – 64. Female genital segment of Deinopteroloma: 58 — D. bisbisinuatum, 59 — D. draco, 60 — D. emeicola, 61 — D. minor, 62 — D. ruzickai, 63 — D. sextuberculatum 64 — D. yinyang. Scale bar: 0.2 mm.