Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 93. (Budapest 2001)

Kirejtshuk, A. G.: Notes on the systematics of the African Nitidulidae (Coleoptera)

turc); and metasternum with somewhat larger and sparser punctures, and with almost smooth microrcticulation. Head about 4/5 as long as distance between eyes. Antennae about 2/3 as long as head width, antennomeres 2 and 3 subequal in length, their club subovoid (nearly 1.2 as long as wide) and comprising about 2/7 of total antennái length. Pronotum weakly convex, with subquadrangular sides and widely arcuate posterior corners. Elytra scarcely shorter than combined width. Last labial palpomere slightly widened apically and more than twice as long as wide, and with oblique apex. Prosternai process moderately widened before very widely rounded apex, which is not wider than antenna! club. Submesocoxal line deviating from the middle of posterior edge of cavity and arcuately approaching to anterior fifth of metasternum. Pygidium subcxplanate before subtruncate apex. Metafemur with almost straight posterior edge, wearing a small tubercle at base. Tibiae scarcely wider than antennái club, subtriangular, with a rather projecting outer subapical corner (especially in anterior one); inner edge of mctatibia slightly convex. Protarsus 2/5 as wide as protibia. Tegmen well sclerotizcd. Female - Differs from male in widely rounded apex of hypopygidium and more projecting pygidium rounded or subacute at apex. Ovipositor moderately sclerotizcd. Variability-Length 2.9-3.4 mm. A moderate variability is shown in punctation and sculpture. The paratypes with uniform punctation on uncovered tergites and hypopygidium consisting of oval small punctures. Tubercle at base of posterior edge of metafemur is sometimes unraised and one paratype has almost unicolourcd reddish elytra. Diagnosis - This new species differs from the very variable C. (M.) fumatus BOHEMAN, 1851 only in light stripes on elytra and apically split gonocoxites of ovipositor, styli of which are slightly more distant from apex. The pygidium of both sexes in the type specimens of the new species are clearly subexplanate, while the pygidium of both sexes in C. (M.) fumatus is rather flattened before apex. Besides, the new species has antennomere 3 scarcely longer than antennomere 2, while C. (M.) fumatus is characterized by antennomere 3 considerably longer than antennomere 2. C. (M.) congoensis sp. n. is externally similar to C. (M.) notatus MURRAY, 1864, however it differs well from the latter in much less contrasting coloration of body, less contrasting sculpture of dorsum, simple apex of female pygidium and structure of genitalia of both sexes. Notes - C. (M.) fumatus is an extremely variable species in many characters, including coloration. However, darker specimens have no clear paler stripes along the elytral suture. Tegmen of this species is variable in length, and the tegmen of the studied C. (M.) congoensis sp. n. look like longest extreme of that among males C. (M.) fumatus. Etymology - This new species obtained its name after the greatest river in the Equatorial Africa.