Parallelodemas tardum 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 : 112

Taxon classification Animalia Coleoptera Curculionidae

Parallelodemas tardum Faust

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

Diagnosis.

Two of the eight known species with undivided setae have an unmodified male mesotarsus, i.e., they lack special setae and the fifth tarsite is not enlarged. One is Parallelodemas tardum described from Myanmar, the other is Parallelodemas tumens from China. Parallelodemas tardum is larger than Parallelodemas tumens (5.4-6.6 mm vs. 3.8-4.8 mm) and has a shorter rostrum with a more distally inserted antenna. The females may be distinguished by body length. A difference between female Parallelodemas perfectum and Parallelodemas tardum is not apparent (each with one known specimen). Female Parallelodemas feae are very similar but have ventrally hirsute femora.

Redescription.

Length 5.4-6.6 mm, width 1.6-1.9 mm; integument black; ventral side and pygidium with undivided setae, basic vestiture of fine setae on pronotum and elytron, moderately wide white setae at base of elytral interstria 3 and postmedially on interstriae 3-5, on metepisternum and basolateral angles of pronotum; eyes flush with head contour; frons and base of rostrum glabrous; male rostrum 0.89 –0.94× as long as pronotum, ventrally without setae, prorostrum 0.32 –0.33× rostral length, apically slightly diverging in dorsal view, epistome short and slightly notched, antennal scape glabrous, club 1.8 × as long as wide; female rostrum 1.04 × as long as pronotum, prorostrum 0.50 × rostral length; prosternum slightly tumescent in front of coxae (apparently not in female), basal lobe notched; pro- and mesofemora ventrally with erect squamiform setae; tarsus with tarsite 3 of moderate size and excised to basal third, tarsite 5 slightly longer than 3 and distinctly protruding beyond anterior margin of 3, male mesotarsus without specialized setae; penis 2.3 × as long as wide, apex lancet-shaped and broadly rounded (as Parallelodemas tumens , Fig. 18), internal sac with 2 small sclerites (hook and paired hook); spermatheca with collum bulbous, ramus short, nodulus obsolete (as Parallelodemas dimetans , Fig. 21).

Distribution.

Besides the type series from Myanmar, we have seen one female from India that might be this species.

Material examined.

INDIA. Sikkim: Gopaldhara, Rungbong Valley, H. Stevens (BMNH 1). MYANMAR. Kayin: Karen Hills [ca. 25-35 km NE of Taungoo, 900-1100 m], V/1888, L. Fea (MSNG 3, SNSD 1).