Deinopteroloma ruzickai 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 : 242-243

Deinopteroloma ruzickai Shavrin & Smetana , sp.n.

( Figs. 6 , 48, 55 , 62 , 65−66 )

Type material examined: Holotype ♀ [plastic plate with aedeagus and apical abdominal segment in Canadian balsam was pinned under the plate with beetle]: “ CHINA: SICHUAN PROV . , \ Emeishan Mt. , 9.VI.2014, \ LEIDONGPING env., 2410 m, \ 29°32ʹ49ʹʹN 103°20ʹ22ʹʹE,” [rectangular printed label], “sift#9, bamboo groove, \ debris under rock abyss, near \ steep track to temples below, \ J. Hájek & J. Růžička leg.” [rectangular printed label], “ HOLOTYPE \ Deinopteroloma \ ruzickai sp. n. \ Shavrin A.V. & Smetana A. des. 2016” [red rectangular printed label] ( NMPC) .

Description. Measurements: HW: 0.85; HL: 0.50; OL: 0.25; AL: 1.42; PL: 0.85; PW: 1.15; ElL: 2.30; EW: 1.50; TL: 4.30.

Body yellowish brown (pronotum with somewhat paler lateral portions); head, legs, antennomeres 7−11 reddish brown; mouthparts and tarsi yellow; each elytron with indistinct brown spot divided in middle into two parts, extending diagonally in middle part of elytra, apical portions of each elytron with indistinct brown wide spot. Dorsal surface of body shiny, without microsculpture, except distinct transverse lines on clypeus. Head with irregular, deep punctation denser on infraorbital ridges; disc of pronotum with punctation as that on head, slightly denser along posterior pronotal margin and distinctly sparser on lateral sides of pronotum; scutellum without punctures; punctation of elytra dense, larger than that on pronotum, disc of each elytron represented by more or less distinct seven longitudianl rows of serial punctures becoming not serially arranged apically. Habitus as in Fig. 6 .

Head 1.7 times as wide as long; posterior part of clypeus and vertex distinctly elevated, with semicircular impression in front of ocelli, infraorbital ridges slightly impressed; eyes large and moderately convex; small, moderately acute postocular ridge situated away from posterior margin of eye, distance about one third of length of eye seen from above; ocelli very large, situated above level of postocular ridges, distance between ocelli slightly longer than distance between ocellus and posterior margin of eye. Antenna short, reaching shoulders of elytra when reclined; measurements of antennomeres (length/width): 1: 0.18 × 0.07; 2: 0.12 × 0.05; 3: 0.14 × 0.04; 4−5: 0.13 × 0.04; 6−8: 0.11 × 0.05; 9−10: 0.11 × 0.07; 11: 0.17 × 0.07.

Pronotum narrow, 1.3 times as wide as long; apical margin slightly narrower than posterior margin, slightly emarginated; anterior angles rounded, lateral margins with uniform fine crenulation, slightly more narrowed posteriad than anteriad, with obtuse posterior angles; disc of pronotum with middle elevation widened posteriad, with median moderately deep and wide longitudinal impression and with paired transverse small impressions above wide, not deep impression in basal third of pronotum; lateral portions of pronotum slightly reflexed, each with deep pit at middle.

Elytra narrow and long, twice as long as wide, each with lateral margin concave in basal third; surface of each elytron with long, narrow sutural tubercle, with narrow, variable in height and slightly oblique, elongated subhumeral elevation in basal fourth, and with two elongated elevations in apical third of which the closest to suture is more conspicuous, and distinctly rises apicad.

Male unknown.

Female. Apical margin of abdominal tergite VIII ( Fig. 48 ) and sternite VIII ( Fig. 55 ) widely rounded. Genital segment as in Fig. 62 .

Differential diagnosis. Based on the lateral margins of the pronotum with fine uniform crenulation without separate large teeth, elongated body and by the presence of longitudinal protuberances in middle and apical third of each elytron, D. ruzickai sp.n. is similar to Nepalese D. crenatum and D. cristatum , but it differs by the coloration of elytra, by slightly longer body, by significantly shorter antennes and by the narrower elytra distinctly concaved laterally in basal third.

Distribution. The new species is known from the Emei Shan range ( Figs. 65−66 ) in Sichuan, China.

Bionomics. The holotype was was taken from debris under a rock in a bamboo growth at the elevation of 2410 m a.s.l.

Etymology. Patronymic. The species has been named in honour of our friend and colleague Jan Růžička (Praha), a specialist in the families of Agyrtidae , Leiodidae and Silphidae , who collected the type specimen.

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.

FIGURE 66. Distribution of Deinopteroloma in Emei Shan Mts., China (detail of rectangle in Fig. 65): D. emeicola (black circle), D. minor (white circle), D. ruzickai (black triangle), D. sextuberculatum, D. yinyang (white rhomb).

FIGURES 6 – 9. Habitus of Deinopteroloma: 6 — D. ruzickai (holotype), 7 — D. sextuberculatum (paratype), 8 — D. vesiculosum (holotype), 9 — D. yinyang (holotype). 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.