Parallelodemas setifrons Prena & Zhang

Prena, Jens & Zhang, Runzhi, 2014, A taxonomic revision of Parallelodemas Faust from South China (Coleoptera, Curculionidae, Baridinae), with notes on sexually dimorphic characters, Deutsche Entomologische Zeitschrift 61 (2), pp. 105-119 : 110

Parallelodemas setifrons Prena & Zhang sp. n.

Diagnosis.

Useful characters for identification are plumose setae, hirsute frons and sexually dimorphic eyes. Parallelodemas petilum is similar but has at most trifid setae and a ventrally hirsute male rostrum.

Description.

Length 3.0-3.9 mm, width 0.9-1.0 mm; integument dark brown, antenna, legs and apex of rostrum light brown; meso- and metathoracic sterna with plumose setae (condensed on metepisternum), prosternum, abdominal ventrites and pygidium mostly with bi- and trifid setae, pronotum and elytron with basic vestiture of fine setae, elytron also with short vittae of white, moderately wide, simple or bifid setae at base and postmedially on interstriae 3-5; eyes distinctly (male) or slightly (female) bulging; frons and base of rostrum with recumbent setae; male rostrum 0.84 –0.90× as long as pronotum, ventrally with long setae, prorostrum 0.43 –0.48× rostral length and slightly spatulate in dorsal view, epistome slightly notched, antennal scape without long setae, club 1.4 –2.4× as long as wide (depending on length of rostrum); female rostrum 0.84 –1.00× as long as pronotum, prorostrum 0.49 –0.57× rostral length; prosternum gradually sloping in front of coxa, basal lobe notched; all femora hirsute ventrally; tarsus with tarsite 3 relatively small and excised to basal third, tarsite 5 nearly as long as 1 and distinctly protruding beyond anterior margin of 3, male mesotarsus with moderately long, clavate, outward directed setae; penis 2.5 × as long as wide, with small, apically rounded projection (Fig. 15), internal sac medially with small, fennel-seed-like sclerite and with sclerotized area with spinose lateral projection near duct; spermatheca (Fig. 24) with nodulus as long as wide and perpendicular to long axis of collum, ramus as long as nodulus.

Distribution.

The species is known from China (Fujian, Guangdong, Guizhou, Hunan).

Material examined.

Holotype: China, Fujian, Jianyang, Chong’an Xin Village [崇安星村], Sangang [三港], 27.7489 N 117.6831 E, 740 m, 29.v.1960, Zuo Yong [左永], male, dissected, #1799533 (IZCAS). Paratypes (5 males, 14 females): CHINA. Fujian: Dazhulan, Shaowu, 19.-25.v.1945 [#1941180] (IZCAS 1); Kuatun [=Guatun], 5.v.1938 (2 ×), 5.vi.1938, J. Klapperich (AKMB 3); Jianyang, Huangkeng Changba, 8.iv.1960 [#1500856], Jiang Shengqiao (IZCAS 1); Jianyang, Huangkeng Guilin, 5.iv.1960 [#1799536, #1799549], 14.iv.1960 [#1799139, #1799158], Jiang Shengqiao (IZCAS 4); Jianyang, 17.v.1965 [#1500855] (IZCAS 1); Jianyang, Sangang, Chong’an Xin Village, 14.v.1960 [#1799135], Pu Fuji (IZCAS 1), 29.v.1960 [#1799533], Zuo Yong (IZCAS 1). Guangdong: Ruyuan, Huangling, Mount Xiaohuang, 18.vii.2008 [#1799020], Li Yingchao (IZCAS 1); Nanling, Ruyang Natural Reserve Station, 19.vii.2008 [#1799016], Li Yingchao (IZCAS 1). Guizhou: Kuankuoshui Natural Reserve, Gongtong ravine, 7.vi.2010 [#1500866], Nie Cuie (IZCAS 1); Suiyang, Kuankuoshui Natural Reserve, Jinzi Village, 3.vi.2010 [#1500859], Wang Zhiliang (IZCAS 1); Suiyang, Kuankuoshui Natural Reserve, Xiangguang Village, Suiyang, 4.vi.2010 [#1500857-58], Wang Zhiliang (IZCAS 2); Suiyang, Kuankuoshui Natural Reserve, 4.vi.2010 [#1500860], Liu Fanggang (IZCAS 1). Hunan: Yizhang, Mount Mang, forest park west gate, 17.vii.2008 [#1799015], Li Yingchao (IZCAS).

Etymology.

The name is a Latin noun in apposition composed of seta and frons.