Parallelodemas docile Faust

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 : 110-111

Taxon classification Animalia Coleoptera Curculionidae

Parallelodemas docile Faust

Parallelodemas docilis [sic] Faust 1894: 309. Lectoype male, designated here, labeled "Carin Cheba/ 900-1100 m/ L. Fea V XII-88", " docilis / Faust", " Parallelodemas / docilis / sp. n.", " Parallelodemas / docilis / ♂ sp. n.", "SYNTYPUS/ Parallelodemas / docilis / Faust, 1894", "Museo Civico/ di Genova", "Lectotype/ Parallelodemas docile / Faust (Prena & Zhang/ design. 2014)" (MSNG). Paralectotypes 6: Carin Cheba, Myanmar (MSNG 3, SFFM 1, SNSD 2).

Diagnosis.

The large, subcordate third and relatively short fifth tarsite (Fig. 4) are diagnostic for this species. Parallelodemas imperfectum Faust, the only other species with enlarged third tarsite, has an extremely miniaturized fifth tarsite (incorrectly stated to be absent by Faust 1894). Other useful characters are the short male rostrum and presence of dense vestiture on the distal three fourths of the metepisternum.

Redescription.

Length 4.5-6.2 mm, width 1.1-1.6 mm; integument black, teneral specimens with ventrites and legs partially dark rufous; ventral side with undivided setae, basic vestiture inconspicuous on pronotum and elytron, imbricate white squamiform setae at base of elytral interstria 3, postmedially on interstriae 3-5, on dorsal apex of mesepimeron, distal 3/4 of metepisternum, flank of prosternum, ventral face of pro- and mesofemora, dorsal face of metafemur and occasionally on basolateral angles of pronotum; eyes flush with head contour; frons and base of rostrum glabrous; male rostrum 0.78 –0.83× as long as pronotum, ventrally without setae, prorostrum 0.38 –0.41× rostral length and subcylindrical in dorsal view, epistome very slightly notched, antennal scape ventrally without long setae, club 1.6 × as long as wide; female rostrum 1.02 –1.13× as long as pronotum, prorostrum 0.50 –0.53× rostral length; prosternum gradually sloping in front of coxa, basal lobe slightly notched; pro- and mesofemora ventrally with recumbent squamiform setae; tarsus with tarsite 3 moderately large, subcordate and excised to middle, tarsite 5 as long as 3 and only moderately protruding beyond anterior margin of 3 (Fig. 4), inconspicuously setose in both sexes; penis 2.5 × as long as wide, apex subtriangular (Fig. 16), internal sac without discernible sclerite; spermatheca with nodulus and ramus short (Fig. 25).

Distribution.

The species is known from China (Yunnan) and Myanmar.

Material examined.

CHINA. Yunnan: Xishuangbanna Prefecture, Menglun, 12.iv.1994, 13.vi.1994 [#1799526, #1941179], Yang Long (IZCAS 2); Xishuangbanna Prefecture, Menglun, Highway G213, 21.xi.2009 [#1500899-901], 22.xi.2009 [#1500902-05], 26.xi.2009 [#1500906-07], Tang Guo & Yao Zhiyuan (IZCAS 9); Xishuangbanna Prefecture, Tropical Plant Garden, 19.viii.2007 [#1500898], Zheng Guo (IZCAS 1]. MYANMAR. Kaya: Karen Hills, Iadó [=Yahku?], XII/1887 (MSNG 2). Kayin: Karen Hills, Leitó [=Leiktho], V/1888, L. Fea (MSNG 2, SFFM 1, SNSD 1).