Parallelodemas imperfectum 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 : 111

Taxon classification Animalia Coleoptera Curculionidae

Parallelodemas imperfectum Faust

Parallelodemas imperfecta [sic] Faust 1894: 310. Lectotype male (dissected), designated here, labeled "Carin Cheba/ 900-1100 m/ L. Fea V XII-88", " imperfecta / Faust", " Parallelodemas / imperfecta / sp. n.", " Parallelodemas / imperfecta / ♂ ♀", "SYNTYPUS/ Parallelodemas / imperfecta / Faust, 1894", "Museo Civico/ di Genova", "Lectotype/ Parallelodemas imperfectum / Faust (Prena & Zhang/ design. 2014)" (MSNG). Paralectotypes 2: Carin Cheba, Myanmar (MSNG 1, SNSD 1).

Diagnosis.

This species can be recognized by its characteristic tarsus: the enlarged third tarsite is barely excised anteriorly and the fifth is greatly reduced (Fig. 5). Parallelodemas docile has a larger fifth tarsite and is more elongate.

Redescription.

Length 5.4-6.4 mm, width 1.5-2.1 mm; integument black, antenna and sometimes parts of legs and ventrites brown; ventral side with undivided setae, basic vestiture on pronotum and elytron absent, imbricate yellowish white squamiform setae at base of elytral interstria 3, postmedially on interstriae 3-4, ventrally and laterally on thorax and abdomen (including basolateral angles of pronotum) and on ventral face of pro- and mesofemora; eyes flush with head contour; frons and base of rostrum glabrous; male rostrum 0.94 × as long as pronotum, ventrally without setae, prorostrum 0.35 × rostral length and slightly spatulate in dorsal view, epistome moderately notched in 1 female [worn in other specimens including male], antennal scape ventrally without long setae, club 1.4 × as long as wide; female rostrum 1.02 –1.07× as long as pronotum, prorostrum 0.50 × 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 enlarged, subcordate, anterior margin straight and only indistinctly excised, tarsite 5 minute (Fig. 5); penis 3.0 × as long as wide, slightly tapering in apical third as in Parallelodemas docile (Fig. 16) but with apex more pointed, internal sac with Y-shaped sclerite; spermatheca with nodulus and ramus short (as Parallelodemas docile , Fig. 25).

Distribution.

The species is known from one site in Myanmar.

Material examined.

MYANMAR. Kayin: Karen Hills [ca. 25-35 km NE of Taungoo, 900-1100 m], V/1888, L. Fea (MSNG 2, SNSD 1).