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

two preapical teeth strong, the other tiny and irregular; inner margin with more than 4 small teeth directing downwards. Middle and hind tibiae feebly curved, with 4 or more small teeth externally. Body length: 26-30 mm; length of mandibles: 5-7 mm. Holotype ( 6* ): "Chile, Coll.: Erdős", paratypes (2 6"): "Chile, coll. Lichtneckert"

. The types are deposited in the Hungarian Natural History Museum, Budapest. The new species is very similar to Sphaenognathus prionoides Buquet, 1838, its distinctive characters: mandibles not angularly but arcuately incurved apically, posterior angles of pronotum bidentate. Figs 1-2. Head, prothorax and left fore leg of Sphaenognathus bidentatus sp. nov. (1.) and S. villosus sp. nov. (2.) Sphaenognathus villosus sp.nov. Body oblong oval, slightly widening posteriorly. Body surface densely pubescent, weakly shining, covered with somewhat rough, dense, whitish-grey pubescence. Colour brown; head, pronotal disc, mandibles, antennae, femora and front tibiae darker. Pronotum with faint greenishviolet, elytra with faint greenish, breast and legs with somewhat stronger greenish lustre. Head densely punctate and pubescent, clypeus swollen between base of mandibles, swelling continues toward frons forming a short, triangular process (Fig. 2). Anterior angles of genae toothlike, but apices obtuse. Eye canthus pubescent. Mandibles shorter than head and pronotum combined; sublinear, with apex more incurved; densely punctate and pubescent (except outer side of apex), denticulate internally, preapical tooth hardly larger than others; upper margin feebly denticulate. Pronotum widening posteriorly, surface densely punctate and pubescent, disc finely rugose; sides crenulate, posterior angles rounded obtuse, not dentate. Scutellum large, semicircular, densely pubescent. Elytra subparallel, densely punctate, finely rugose, finely and densely pubescent.