1907.] Catalogue of the Coleoptera of South Africa. 297 



anterior than in the posterior part, and with the basal angles plainly- 

 distinct ; scutellum cordiform, as broad as long ; elytra elongate, 

 not plane ; pygidium vertical ; under side very densely hairy, as are 

 also the head and prothorax, but the elytra are glabrous ; legs long, 

 tarsi longer than the tibiae, strongly spinose underneath ; anterior 

 tibae bi-dentate outwardly in the male, but tri-dentate in the female, 

 in which sex the lower spur of the hind tarsi are very plainly com- 

 pressed and blunted at tip ; the intermediate tibiae of the male are 

 somewhat curved inwardly in some species, not in others. 



Three of the species of this genus seem restricted to the western 

 South African area, but another one occurs also in Natal, where it 

 seems to be rare. 



Key to the Species. 



A 2 . Clypeus emarginate in front. 



Elytra with the suture, the outer margin and a diagonal band 



on each side green vittatus. 



Elytra with the suture and the outer margin green suturalis. 



A 1 . Clypeus not emarginate in front. 



Elytra with the suture and the outer margin infuscate ; pygidium 

 concolorous . . , • • . . septus. 



Elytra with the outer margin only black ; pygidium with two 



wide whitish patches natalensis. 



Stegopterus vittatus, Fabric, 



Syst. Ent. App., p. 819 ; 



Gor. and Perch. Monogr. Cet., 1883, p. 83, pi. 9, fig. 5. 



surinamensis, Herbst. Kaf., hi., p. 71, pi. 23, fig. 7. 

 tomentosus, de Geer. Mem., vii., p. 644, pi. 48, fig. 8. 

 tricolor, Lin. Syst. Nat. Ed. Gmel., i., 4, p. 1574. 

 zebra, Oliv. Ent., i., 5, p. 54, pi. 7, fig. 75; Guer. Icon. Eegn. 

 Anim. Ins., pi. 26, fig. 3. 



Metallic green ; elytra flavescent and having on each side a fuscous 

 longitudinal, somewhat narrow infuscate band reaching from the 

 shoulder to the apex, the outer margin is also narrowly infuscate 

 laterally, and the suture has a broad green band in the male, and a 

 fuscous one in the female. 



Male : Head closely punctate, and covered in the frontal part by 

 a dense pile of flavescent hairs ; clypeus a little shorter than the 

 head, not much ampliated laterally, as broad as long, broadly 

 emarginate at apex, with the angles broadly rounded ; antennae 

 deeply infuscate, the club longer than the whole pedicel ; prothorax 



