Parallelodemas perfectum Faust

Parallelodemas perfecta [sic] Faust 1894: 307. Lectoype male, designated here, labeled "♂ Carin/ Cheba", " perfecta / Faust", "Coll. J. Faust/ Ankauf 1900", “Typus”, "Staatl. Museum für / Tierkunde Dresden", "Lectotype/ Parallelodemas perfectum / Faust (Prena & Zhang/ design. 2014)" (SNSD). Paralectotypes 1 (female), Carin Cheba, 900-1100 m, V XII.1888 (MSNG). Morimoto and Yoshihara (1996: 17), designation as type species for Parallelodemas .

Diagnosis.

Only two specimens of the sexually dimorphic Parallelodemas perfectum are known, one of each gender. The species forms a complex with Parallelodemas feae, Parallelodemas tardum, Parallelodemas tumens and Parallelodemas vicinum, all of which have flush eyes, thoracic ventrites with undivided setae and a male mesotarsus with outward-directed clavate setae (Fig. 6). The profemur of the male Parallelodemas perfectum is ventrally more expanded than in the other species. Parallelodemas feae has ventrally hirsute femora; Parallelodemas tardum has a shorter male rostrum; Parallelodemas tumens is smaller (<5 mm); Parallelodemas vicinum usually has denser vestiture on the mesepisternum and a less curved female rostrum. The few available female Parallelodemas perfectum and Parallelodemas tardum could not be distinguished with confidence.

Redescription.

Length 7.0-7.8 mm, width 1.8-1.9 mm; integument black; ventral side with undivided setae, basic vestiture inconspicuous on pronotum and elytron, white squamiform setae at base of elytral interstriae 3 and 4, postmedially on interstriae 3-5, on dorsal apex of mesepimeron, metepisternum, 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 1.06 × as long as pronotum, ventrally without setae, prorostrum 0.36 × rostral length and slightly spatulate in dorsal view, epistome very slightly notched, antennal scape with long, cupreous setae, club 1.6 × as long as wide; female rostrum 1.02 × as long as pronotum, prorostrum 0.58 × rostral length; prosternum slightly tumescent (male) or gradually sloping (female) in front of coxa, basal lobe notched; pro- and mesofemora ventrally with slender (male) or squamiform (female) setae, male profemur somewhat angularly produced ventrally; tarsus with tarsite 3 relatively small and excised to basal third, tarsite 5 longer than 3 and distinctly protruding beyond anterior margin of 3, male mesotarsus with moderately long, clavate, outward directed setae; penis 3.1 × as long as wide, apex roundly narrowed with slightly produced tip (as Parallelodemas feae, Fig. 19), internal sac with short, complex sclerite (double hook); spermatheca with nodulus long and perpendicular to long axis of collum, ramus obsolete (as Parallelodemas impar, Fig. 26).

Distribution.

The species is known from one site in Myanmar.

Material examined.

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