Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 76. (Budapest 1984)

Kirejtshuk, A. G.: New taxa of Nitidulidae (Coleoptera) from the Indo-Malayan fauna

Cychramus brunnicolor sp. n. (Figs. 128-130) Material. 1 f holotype (NR) and 6 specimens, paratypes (NR and ZIN): N.E. Burma, Kambaiti, 2000 m, 25 May — 26 June 1934, R. MALAISE. Male, holotype. Length 5.0, breadth 3.0, height 1.4 mm. Oval, dorsum evenly convex, venter flat; chestnut brown, anterior part of head with mouth apparatus, antennái flagelli, pronotal and elytral sides, propleura and elytral epipleura, abdominal tip as well as apical femoral thirds, tibiae and tarsi somewhat lighter, pronotal disc and antennái club nearly black; shiny; pubescent with long dense yellowish hairs, forming herewith not quite distinct rows on elytra of longer and darker hairs; pronotal and elytral edges moderately ciliate. — Head and pronotal surface with oval punctures nearly as large as eye facets separated by a distance equal to about one-third puncture diameter, interstices smooth and shiny. Elytral one with comparatively sparse and extremely small indistinct puctures and with a reticulation somewhat smoothed. The ventral surface less densely and contrastly pubescent and less shiny than dorsal; prosternum scarcely punctured, but rest of sterna with considerably larger punctures than on pronotum separated nearly by a half puncture diameter, with interstices distinctly reticulated. — Head and dorsum flat. Antennae 1.5 times as long as head broad, their club composing about third of total antennái length. Pygidium scarcely emarginate at apex. Last abdominal sternite almost abrupt. Tibiae feebly widened towards their apices. — Genitalia: Aedeagus heavily sclerotised. Female. Outwardly differs from male only in abrupt apex of pygidium. — Genitalia: Ovipositor well sclerotised. Variation. Length 3.3-5.0, breadth 2.2-3.0 mm. A certain extend of variation is shown in the densitiy of puncturation and coloration (some paratypes are almost unicolorous, but the pronotal disc, head basis, antenna! clubs, metasternum and proximal 2/3 femora are always clearly darker). KEY TO THE CYCHRAMUS SPECIES OF THE PALAEARCTIC AND 1NDO-MALAYAN REGIONS 1 Dorsal head surface of female with a deep and large levigate concave on each side of vertex, but in male nearly flat; pronotum with 4 dark spots transversely arranged, sometimes 2 or all spots reduced ; elytra along pronotal basis usually contrasting lighter than rest of surface 2 — Dorsal head surface without secondary sexual character; pronotum without small spot or with large discal mark with indistinct margin; elytra unicolorous or with other coloration 3 2 Darker, pitchy brown; antennái club twice longer than flagellum; elytral surface with reduced puncturation and more shiny; male genitalia considerably longer, with penis apex acute. 4.1-5.7 mm. — Burma C. malaisei sp. n. — Lighter, brown, rarely less light or slightly darker; antennái club nearly 1.5 times as long as flagellum; elytral surface dull with distinct puncturation; male genitalia shorter, penis apex blunt. 4.3-7.3 mm. — Palaearctic Region, Burma (a dozen specimens collected by R. MALAISE [NR and ZIN] in the same locality as 2 species recently described) C. variegatus (HERBST, 1972) 3 Robust, subquadrate as in C. variegatus and C. malaisei sp. n 4 — Distinctly slender 5 4 Inner apical corner of male fore tibia strongly projected inwards; dorsum except head, pronotal disc and large central marking on each elytron yellowish brown or reddish brown but sometimes entirely yellowish brown. 4.5 mm. — Japan C. plagiatus REITTER, 1884 •— Fore tibia without any trace of sexual dimorphism; chestnut brown, antennái club and pronotal disc nearly black. 3.3-5.0 mm. — Burma C. brunnicolor sp. n.