Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 94. (Budapest 2002)

Kirejtsuk, A. G. ; Viklund, B.: Contributions to the knowledge on the subgenus Meligethes (Clypeogethes Scholtz, 1932) from Kenya (Coleoptera: Nitidulidae)

Meligethes (Clypeogethes) impexus sp. n. (Figs 7-11) Specimen examined - Kenya: holotype, male (NRS) - "Voi Mtito Andei, light-trap roof Tsavo Inn, 24/11-25/11/1990, Peeter Päts & Bert Viklund". Description of male (holotype) - Length 2.0, width 1.1, height 0.5 mm (Fig. 7). Moderately convex dorsally and ventrally; chestnut brown, with rather dark head, pronotum, scutellum and suturai part of elytra; appendages somewhat paler brown; body strongly shining, with sparse, slightly conspicuous, but rather short and very fine yellow hairs slightly longer than distance between their insertions. Head and pronotum with distinct and deep punctures somewhat smaller than eye facets in diameter; interspaces between them about 2 puncture diameters on head and 1.5 puncture diameters on pronotum, completely smooth. Elytra with distinct but extremely small punctures and finely raised transrugosity between widely separated punctures, broad interspaces between rugae completely smooth. Pygidium finely granulöse, with large and coarse punctation. Surface on prosternai process, metasternum and ventrite 1 similarly punctured and sculptured as elytra, but without a trace of transrugosity; other ventrites with obsolete punctation and finely alutaceous interspaces, except subapical shining plate lacking punctation and other sculpture. Head slightly and gently convex dorsally, slightly longer than distance between eyes. Antennae about 2/3 as long as head broad, their club slightly longer than wide, comprising about 3/7 of total antennái length and nearly blunt at apex. Pronotum with gently sloping and not explanate (but widely bordered) sides, its posterior angles broadly rounded. Elytra with gently sloping sides and without marked trace of humeral stria; lateral edges visible from above. Pygidium with broadly subtruncate apex. Antennái grooves subparallel to slightly convergent. Mentum bisinuate at anterior edge of basal part and slightly convex at posterior one, about 3 times as wide as long. Prosternai process extremely wide, about 2.5 times as wide as antennái club and far projecting posteriorly, with a subtruncate and unbordered posterior edge (Fig. 9). Distance between mesocoxae about 1.5 times and that between metacoxae 2.5 times as great as that between procoxae. Mesosternum with a median fossa. Metasternum slightly convex, its anterior edge rather concave, and with a shining median stripe without punctures before posterior edge. Submetacoxal line running closely to posterior edge of coxal cavities. Hypopygidium with a transverse posterior edge and with an isolated transverse (quadrangular) shining plate (its length a little less than width of antenna! club). Protibia about as wide as antennái club (Fig. 8), meso- and metatibiae about 1.5 times wider; meso- and metatibiae with not very dense, fine and short setae along outer edge. Femora nearly 2.0-2.5 times as wide as correspondent tibia, but profemur with strongly convex anterior edge. Protarsus slightly narrower, but meso- and metatarsi much narrower than correspondent tibiae, claws narrow and simple. Aedeagus (Figs 10-11) moderately sclerotized. Diagnosis - This new species is similar to M. (C.) undosus EASTON, 1964 described from Democratic Republic of Congo (Zaire) and M. (C.) relativus sp. n., but differs from both in its very shining and not unicolourous body (without raised microreticulation on dorsum), peculiarities of punctation, shapes of male pygidial apex, prosternai process and hypopygidium, and very different aedeagal structure