Parallelodemas plumosum 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 : 109-110

Parallelodemas plumosum Prena & Zhang sp. n.

Diagnosis.

This species can be distinguished from Parallelodemas setifrons , the other known species with plumose setae, by glabrous frons and slightly protruding eyes in both sexes. Parallelodemas dimetans and Parallelodemas petilum have at most trifid setae.

Description.

Length 3.6-5.4 mm, width 1.0-1.4 mm; integument black, antenna and tarsi dark brown; ventral side with plumose setae, pygidium with bifid setae, pronotum and elytron with basic vestiture of very fine setae, elytron also with short vittae of plumose white setae at base of interstria 3 and postmedially on interstriae 3-5; eyes very slightly bulging; frons and base of rostrum with a few recumbent setae; male rostrum 0.94 –1.06× as long as pronotum, ventrally without setae, prorostrum 0.40 –0.43× rostral length and slightly spatulate in dorsal view, epistome moderately notched, antennal scape with a few long setae, club 1.8 × as long as wide; female rostrum 1.00 –1.04× as long as pronotum, prorostrum 0.49 –0.51× rostral length; prosternum gradually sloping in front of coxa, basal lobe truncate; pro- and mesofemora hirsute ventrally; tarsus with tarsite 3 moderately large and excised to basal third, tarsite 5 nearly as long as 1 and distinctly protruding beyond anterior margin of 3, with long, distally unmodified setae in both sexes; penis 3 × as long as wide, roundly narrowed to subtriangular tip (Fig. 14), internal sac with harpoon-like sclerite; spermatheca with nodulus short and thick, ramus as long as wide (Fig. 24).

Distribution.

The species occurs in China (Fujian, Hainan) and Taiwan.

Material examined.

Holotype: China, Fujian Province, Jianyang [建阳], Chong’an Xin Village [崇安星村], Sangang [三港], 740 m, 27.7489 N 117.6831 E, Pu Fuji [蒲富基], 14.v.1965, male, dissected, #1799537 (IZ CAS). Paratypes (13 males, 6 females): CHINA. Fujian: Jianyang, Chong’an Xin Village, Qili Bridge, 12.vii.1963 [#1500864], Zhang Youwei (IZCAS 1); Jianyang, Chong’an Xin Village, Sangang, 29.v.1960 [#1799132], 4.vi.1960 [#1500862], 7.vi.1960 [#1799540], Jiang Shengqiao (IZCAS 3), 6.vii.1960 [#1799529], Pu Fuji (IZCAS 1), Zhang Yiran (IZCAS 1), 14.v.1965 [#1500863]; Jianyang, Chong’an Tongmuguan Guanping, 22.v.1960 [#1799136], Jiang Shengqiao (IZCAS 1); Mount Wuyi, Guadun, 3.vii.1982 [#1500861], Jiang Fan (IZCAS 1). Hainan: Qiongzhong, Mount Wuzhi, ancient plant path, 29.vii.2009 [#1500852], Liang Hongbin (IACAS 1), 30.xi.2009 [#1879661-62, #1879689], Zhang Kuiyan & Lin Meiying (IZCAS 3); Qiongzhong, Mount Wuzhi, main peak, 28.xi.2009 [#1879660], Huang Lina (IZCAS 1); Qiongzhong, Mount Wuzhi, Shuiman Village, 30.vii.2009 [#1500853-54], Huang Xinglei (IZCAS 2); Mount Diaoluo, Holiday Village, 12.xii.2008 [#1500851], Wang Zhiliang (IZCAS 1). TAIWAN. Nanjing: Wushe, 3.v.1983 (2 ×), 10.v.1983, H. Townes (CMNC 3).

Etymology.

The name is a Latin adjective meaning plumed, or with feathers.