Geotragus rugosus Ren, Alonso-Zarazaga & Zhang, 2013, sp. nov.
Creators: name: Ren, Li
name: Alonso-Zarazaga, Miguel A.
name: Zhang, Runzhi
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Geotragus
Geotragus rugosus

description: Geotragus rugosus sp. nov.
(Fig. 6, 7)
Diagnosis. This species can be easily distinguished from other species by the following characters: dorsal part of rostrum strongly corrugated, with a deep wide central furrow and many subparallel furrows; preocular area with a wide, deep and oblique impression laterally on each side of rostrum.
Description. Holotype-male. Measurements (in mm): Standard length: 6.50; pronotal length: 2.20; pronotal width: 2.05; elytral length: 4.80; elytral width: 2.60; rostral length: 1.04; rostral width: 0.80.
Habitus and color (Fig. 6 A, 6B): Body slender; integument reddish brown, only head and sides of elytra dark red, antennae and legs pale reddish brown; with coppery metallic green to yellowish brown scales, scales moderately dense, tessellate, contiguous but not overlapping; scales on dorsal and lateral surfaces of rostrum sparse, oval; posterior half of antennal scrobes glabrous; pronotum with round scales, moderately dense; scales on elytra round, moderately dense; scales on ventrites dense, round to elongate-oval from ventrites 1–5, ventrite 5 with lanceolate scales; legs densely covered by scales; body with recumbent to subrecumbent sparse and slightly thick setae; rostrum covered with recumbent to subrecumbent fine setae; setae of antennal scape and desmomeres 1–7 long, fine and sparse; setae of interstriae lanceolate, sparse and subrecumbent; setae on ventral surface thick and sparse; setae of tibiae long and moderately dense, femora with subrecumbent lanceolate setae.
Head (Fig. 6 C): Moderately flat, dorsal part with many longitudinal sulci, corrugated, punctures small and dense; eyes strongly convex, with a deep circumocular sulcus; frons moderately flat, not higher than dorsal part of rostrum in lateral view.
Rostrum (Fig. 6 C): In dorsal view, 1.3× length of wide; apex narrower than base; base wider than frons; dorsal surface depressed in median area of rostrum, corrugated, with a wide and deep median sulcus, extending from antennal insertion to vertex, along the median sulcus, with many subparallel longitudinal sulci, short and deep; epistome broad, posterior angle of epistome between 45° and 90°, with carina distinct; mandible scars quadrate to rectangular; in dorsal view ventral margin of scrobes visible from apex to middle of rostrum; in lateral view, with a deep and wide groove positioned laterally between eyes and antennal scrobes, perpendicular to antennal scrobes, close to ventral margin of rostrum accompanied by subparallel deep and wide sulcus.
Antennae: Scape slender, reaching middle of eyes, 0.82× length of funicle; desmomere 1 1.24× length of 2, both segments elongate clavate, desmomere 1 apical rather stout, strongly narrowed toward base; desmomere 3 as long as 4, both segments elongate moniliform, 0.67× length of desmomere 2; desmomere 5 as long as 6, both segments moniliform and 0.93× length of desmomere 4; desmomere 7 much wider than and 1.15× length of 6, moniliform; pubescence of funicle similar throughout; club segment 1 1.6× length of 2, segment 2 0.6× length of 3; segment 3 with a marked annulus beyond middle.
Pronotum: 1.07× as long as wide, elongate; anterior and posterior margin truncate; disc with a fine, shallow, incomplete median longitudinal groove; posterior margin distinct carinate, linear; dorsal surface of pronotum with slightly dense, large and round granules, space between granules moderately convex, each granule with one recumbent lanceolate seta on top; postocular vibrissae long.
Scutellum: Large, reddish black, apex broadly V-shaped.
Elytra: Base truncate; in lateral view moderately convex; in dorsal view, lateral margins clearly diverging from base to basal 1/5, then subparallel, reaching its greatest width nearly at declivity, thence clearly converging towards the apex, apex blunt, W-shaped; odd interstriae slightly more raised than even ones; interstria 1 moderately raised along basal 1/8, forming a longitudinal crest, not raised at declivity, top of declivity normally rounded in lateral view; interstria 3 much wider than remaining interstriae, distinctly raised and expanded at basal 1/4, forming a elongate crest, slightly raised and forming 1–3 round tubercles just before declivity; interstria 5 raised after basal 1/ 8 and forming a row of several small tubercles, more strongly raised at declivity, forming a cone-like tubercle; interstriae 3 and 9 coalescing, raised at declivity forming a V-shaped tubercle on each elytron.
Abdomen (Fig. 7 A): Surface of ventrite 1 depressed at middle and convex on lateral areas; suture I bisinuate; ventrite 2 moderately convex medially, with apical transverse impression; mesal length of ventrite 1 1.4× length of 2, ventrite 2 1.1× length of 3 and 4 combined; ventrite 5 convex, widely parabolic.
Metendosternite (Fig. 7 B): Stalk 0.4× length of furcal arms, trapezoidal and slightly transverse, anterior part of longitudinal flange very short, only 1/5 as long as posterior; hemiductus weak, not very clear, wide and truncate; anterior tendons positioned almost in the middle of furcal arms, opposite to hemiductus; furcal arms strong, apically slightly bifurcate, diverging at nearly 60° in relation to longitudinal flange, with an oblique keel near basal part of each furcal arm.
Legs: Protibiae bent inwards at apical 1/4, inner margin not bisinuate, almost straight, outer margin slightly arcuate inwards; inner margin of protibiae distinctly with 11 sharp and large teeth, each tooth with a spiniform seta just behind it; teeth of meso- and metatibiae sparse and much smaller than protibiae; protibial mucro moderately large, distinct, not covered by setae; tarsi slender; tarsomere 1 much longer and wider than 2.
Male genitalia and terminalia: Sternite VIII (Fig. 7 C) divided into two hemisternites, transversely oriented, crescent shape; each hemisternite laterally acuminate, anterior margin widely roundly emarginate, posterior margin arc shaped; membrane between sternite VIII and IX with two very small, dot-like sclerotizations. Sternite IX (Fig. 7 C) with basal plate bilobed, each lobe semi-trapezoidal; spiculum gastrale 0.68× length of penis, more sclerotized at middle, basal 1/2 almost straight, slightly curved anteriorly. Penis (Fig. 7 D, 7E) in dorsal view 2.74 mm in length, ca. 4.5× length of wide, temones 1.37 mm long; lateral margins subparallel at middle, slightly expanded at ostium level, thereafter converging straight but asymmetry, apex obliquely truncated; in lateral view strongly curved, after ostium strongly constricted toward apex, almost flat at apex. Tegmen (Fig. 7 F) 0.53× length of penis, with ring narrow, parameroid lobes developed, narrowly spaced at base, basal half more sclerotized area triangular; tegminal apodeme slender, forming a Y-shape with basal piece, distal end of apodeme not expanded, rounded.
Variation. Male paratypes. Measurements (in mm): Standard length: 6.20–7.20; pronotal length: 1.90–2.45; pronotal width: 1.80–2.40; elytral length: 4.20–5.50; elytral width: 2.50–3.00; rostral length: 1.00–1.22; rostral width: 0.80–1.10. Inner margin of protibiae distinctly with 11–14 sharp and large teeth. Among examined specimens, there is one male with a darker penis and with the apical margin of the ostium rounded.
Female paratypes. Measurements (in mm): Standard length: 7.40–7.80; pronotal length: 2.00–2.10; pronotal width: 2.30–2.40; elytral length: 4.90–5.80; elytral width: 3.50–3.60; rostral length: 1.20–1.23; rostral width: 1.11–1.13. Elytra much wider than male, pronotum transverse, ventrite 5 (Fig. 7 G) parabolic, slightly shorter than ventrite 2. Sternite VIII (Fig. 7 H) with spiculum ventrale “baseball bat” shape and slightly curved; lamina tightly folded, in lateral view triangular, ventral margin angulated at midpoint, strongly sclerotized. Ovipositor (Fig. 7 H, 7I) with coxites shorter than sternite VIII, cone-like, lateral margins strongly sclerotized, posteriorly slightly narrowed with rounded apex; styli relatively small, cylindrical, with 2–3 long setae, more sclerotized than coxites. Bursal sclerites (Fig. 7 J) near the point of union of spermathecal duct and of oviduct, facing each other at middle, each sclerite in lateral view T-shaped with margins curved, dorsal surface of mesal area with many sharp spines. Spermatheca (Fig. 7 K) with corpus nearly rounded; cornu slightly elongate, strongly curved as broad V-shaped, apically gradually narrowed with apex rounded; nodulus prominent, curved tube-like, subcontiguous with and strongly angled at about 20° in relation to ramus; ramus trapezoid, prominent with truncate apex.
Material examined. Holotype: 3: (white, printed): CHINA, Yunnan Provin. / Gongshan, Cikai town / Dabadi, riverside. / N27°47’48”, E98°30’21”; 3000m, 2002.9.30, day / LIANG Hongbin. / Sino-American Exped. / Institute Zoology, CAS; (red, printed): HOLOTYPE; (white, printed): IOZ(E) 905051. Paratypes (43, 5Ƥ): 1Ƥ: same data as holotype except PARATYPE printed on yellow paper and IOZ(E) 905053. 13: with same locality and elevation as holotype except collecting date 2002.9.27 night, light, PARATYPE printed on yellow paper and IOZ(E) 905052. 33: (white, printed): CHINA, Yunnan Provin., / Gongshan, Dulongjiang, / Maku. Wood, vegetation / 27.68875°N, 98.31303°E; 1677m, 2006.9.3 day / Liu Ye collector / California Academy & / IOZ., Chinese. Acad. Sci.; (yellow, printed): PARATYPE; (white, printed): IOZ(E) 1798744, IOZ(E) 1798745, IOZ(E) 1798747. 2Ƥ: ditto, IOZ(E) 1798746, IOZ(E) 1798748. 2Ƥ: (white, printed): [Yúnnán Gòngshān Dúlóngjiāng Xiāng] /! "# [Mǐlǐwáng Lùbiān Wǎnshàng] / 2004. X.31 $%& [Liáng Hóngbīn] / [Zhōngguó Kēxuéyuàn]; 1956m / '([Wĕidù] 27.72383 /)([Jīngdù] 98.36117 /
[Zhōngguó Kēxuéyuàn]; (yellow, printed): PARATYPE; (white, printed): IOZ(E) 905050, IOZ(E) 905054.
Holotype and all paratypes are to be conserved in IZCAS.
Distribution. China: Yunnan (Gongshan). Altitudinal range of this species is from 1677m to 3000m high. Etymology. The specific epithet is referring to the strongly corrugated dorsal part of the rostrum.
description: Published as part of Ren, Li, Alonso-Zarazaga, Miguel A. & Zhang, Runzhi, 2013, Revision of the Chinese Geotragus Schoenherr with description of three new species (Coleoptera: Curculionidae: Entiminae), pp. 161-182 in Zootaxa 3619 (2) on pages 173-176, DOI: 10.11646/zootaxa.3619.2.5, http://zenodo.org/record/216580