S. Mahunka szerk.: Folia Entomologica Hungarica 47/1-2. (Budapest, 1986)

FOLIA XLVII. 1-2 ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK 1986 p. 15-17 Descriptions of two new species of the genus Sphaenognathus Buquet, 1838 (Coleoptera: Lucanidae) By L. ÁDÁM (Received November 4, 1985) Abstract: Two new Sphaenognathus species are described from South America: Sphaenognathus bidentatus sp. nov. from Chile and Sphaenognathus villosus sp. nov. from Colombia. Thirty-eight species of Sphaenognathus Buquet, 1838 have so far been described; a further name (

Sphaenognathus rugosum Parry, 1863) has originally been published as synonym of Sphaenognathus murrayi J. Thomson, 1862. Nine species have been reported from Venezuela, 12 from Colombia, 5 from Ecuador,

5 from Peru, 6 from Bolivia and 1 from Australia. These species have generally been described on the basis of one or only few specimens.Only a few names have been synonymized: Sphaenognathus manifestus (Jakowleff, 1901) is no doubt identical with Sphaenognathus garleppi (Boileau, 1899), however, Sphaenognathus albofuscus (Blanchard, ri846l), which has been regarded as a synonym of Sphaenognathus prionoides Buquet, 1838, is definitely a distinct species, just as Sphaenognathus circumflexus (Parry, 1874) and Sphaenognathus giganteus (Boileau, 1911) regarded as synonyms of Sphaenognathus feisthamelii (Guérin, 1838). The recently described Sphaenognathus didieri (Lacroix, 1972) is most likely identical with Sphaenognathus murrayi J. Thomson, 1862. During the identification of the Sphaenognathus material deposited in the Hungarian Natural History Museum, Budapest, I have found specimens belonging to two new species. One of the new species is from Chile; no species of this genus has hitherto been known from this country. Sphaenognathus bidentatus sp.nov. Body oblong oval, slightly widening posteriorly. Body surface densely punctate, shining, covered with fine, silky, whitish-grey pubescence, only elytra glabrous. Colour brown, middle and hind tibiae light reddish brown; the whole body with greenish or greenish-violet lustre. Head densely punctate and pubescent, clypeus with a tubercule each at base of mandibles (Fig. 1). Anterior angles of genae tooth-like, apices acute. Eye canthus pubescent. Mandibles shorter than head and pronotum combined; sublinear, with apex more incurved; densely punctate and finely pubescent (except outer side of apex); inner margin denticulate, preapical tooth slightly larger than others; inner side with a preapical tooth on larger specimens; upper margin strongly dentate. Pronotum widening posteriorly, surface densely punctate, finely pubescent, disc feebly rugose, sides slightly crenulate, posterior angles obtuse, bidentate (two teeth indistinct on smaller specimens). Scutellum large, semicircular, densely pubescent. Elytra subparallel, densely punctate, vermiculate, glabrous. Humeri rounded. Front tibiae curved, outer margin with more than 4 teeth,