OCR Text |
Show 1897.] PHYTOPHAGOUS C O L E O P T E R A O P AFRICA. 559 distinct spine; metatarsus of the posterior legs much longer than the following three joints together ; claws appendiculate; prosternum subquadrate; mesosternum broader; the anterior coxal cavities closed. I suggest this genus for a small species of a Halticide, having the appearance and general characters of most of the smaller species belonging to the group Monoplatince, or bladder-clawed Halticidae, but differing in the simple not inflated claw-joint. The insect seems nearly allied to m y genus Allomorpha, but may be at once known by the punctate-striate elytra. The genus would perhaps best be placed near Febra, Clark. EUGONOTES LONGICORNIS, n. sp. (Elate XXXIV. fig. 8.) Black, antennas and legs flavous; head and thorax pale fulvous, extremely finely punctured ; elytra black, finely pubescent, closely and strongly punctate-striate, the interstices slightly convex ; posterior femora black. Length 1 line. Head impunctate, pale fulvous; eyes very large, frontal tubercles absent; clypeus broad, raised into a short ridge between the antennae, impunctate ; antennae extending to the apex of the elytra, flavous, the first joint long and slender, the second thickened, a little shorter than the third joint, the fourth one-half longer than the third joint, the others very elongate ; thorax about one-half broader than long, the sides nearly straight, the anterior angles oblique, forming another angle before the middle, the surface rather convex, extremely finely punctured and granulate; scutellum transverse, black; elytra opaque, black, clothed with short whitish pubescence, regularly and strongly punctate-striate, the subsutural row abbreviated before the middle, the punctures very closely placed, the interstices longitudinally costate : underside and posterior femora black, the other legs flavous ; posterior tibiae not sulcate, with a distinct spine, their metatarsus as long as half their length ; prosternum nearly subquadrate ; the anterior coxal cavities closed. Hab. Madagascar, Diego-Suarez (Ch. Alluaud). DIBOLOSOMA, n. gen. Body ovate; eyes large, rather closely approached, the intermediate space with deep oblique grooves ; frontal tubercles absent; clypeus broad; antennae rather short, the apical joints distinctly thickened; thorax transverse, without any grooves or sulci; elytral punctuation semi-regular, punctate-striate at the sides; anterior tibiae unarmed; posterior femora strongly incrassate, their tibiae widened at the apex, the latter sulcate to a short extent, with a distinct spine, the metatarsus as long as the following three joints together ; claws appendiculate; prosternum distinct; the anterior coxal cavities closed. In shape the insect for which this geuus is proposed resembles 37* |