| OCR Text |
Show 544 MR. M. JACOBY ON T H E [May 18, SYAGRUS MASHONANUS, n. sp. Black or fulvous, the apical joints of the antennae and the knees black ; thorax impunctate, elytra strongly punctate-striate, femora dentate. Mas (?). Thorax fulvous; elytra flavous; legs flavous, with or without dark knees. Fern. (?). Thorax black; elytra flavous, the sutural and lateral margins and a round spot before the middle greenish black. Length 2 lines. Head finely punctured at the vertex, the clypeus more strongly and closely punctured, scarcely separated from the face; antennas long and slender, fulvous, the apical joints more or less fuscous or black, the second joint but slightly longer than the third, this and the following joints elongate and slender; thorax subcylindrical, about one-half broader than long, the anterior portion rather strongly deflexed at the sides, the latter moderately rounded, the surface impunctate, fulvous in the male, black in the female ; elytra subcylindrical, strongly punctate-striate, the punctures finer towards the apex, entirely flavous, or each elytron with a round or elongate black spot before the middle, the sutural and lateral margins likewise black in the female: underside black; legs fulvous, the femora wdth a distinct tooth, the knees and the first two joints of the tarsi more or less black ; claws bifid; prosternum broad, coarsely punctured; the anterior margin of the thoracic episternum slightly convex. Hah. Mashonaland (G. Marshall). The different coloration in the sexes of this species is rather peculiar and constant in the six specimens before m e ; the sexes have been pointed out by M r . Marshall, who has probably taken them in copula. The male is of nearly entirely fulvous coloration above, although in one specimen the suture is obscurely marked with a fuscous band, but the elytral spots are absent; the legs are likewise either entirely fulvous or have the knees darker, but this is never so pronounced as in the female; in the latter the thorax is black and shining and the head is sometimes likewise marked with black on the vertex. SYAGRUS RUGICOLLIS, n. sp. Below piceous, the basal joints of the antennae and the legs fulvous ; thorax greenish aeneous, rugosely punctate ; elytra obscure fulvous with metallic gloss, the sutural and lateral margins narrowdy blackish, surface strongly punctate-striate; posterior femora with a minute tooth. Length 1\ line. Head flat, strigosely punctured on the vertex, the rest of the surface remotely and finely punctate, eyes widely separated, surrounded by a narrow sulcus; clypeus not separated from the face, more strongly punctured; antennae extending to the middle of the elytra, tbe lower seven joints fulvous, the others fuscous, third and fourth joints slender, equal, the basal and the second joint |
