1907.] Catalogue of the Coleoptera of South Africa. 349 



and carinate laterally but slightly attenuate near the apex the 

 margin of which is sinuate and moderately or highly reflexed ; 

 antennal club of male not quite as long as the pedicel ; prothorax 

 plainly narrowed laterally in front, sub-trapezoidal from about the 

 median part, plainly arcuate above the scutellum which is sharply 

 triangular, a little longer than broad, and grooved laterally ; elytra 

 somewhat broad and short, moderately broadly sinuate laterally, 

 bi-costulate, seriate punctate ; pygidium of the normal shape and 

 maculated with white or fiavescent, under side with flavescent 

 bands or patches, sternal process projecting beyond the coxae, 

 broadly and ovately transversely ampliated ; pectus and legs 

 pubescent ; anterior tibiae tri-dentate outwardly, the upper tooth 

 short in the male ; tarsi somewhat short, the basal joint plainly 

 sub-spinose or spinose outwardly in both sexes ; intermediate tibiae 

 dentate on the upper side. 



The genus includes two species which might be taken for varietal 

 forms of each other, but which are greatly separated by the different 

 shape of the genital armature of the male. 



Key to the Species. 



A 2 . Light testaceous brown on the upper side ; each elytron with 

 four discoidal black patches, and seriate white spots. 



B 2 . Frontal part glabrous, clypeus highly reflexed in front ; 



prothorax with four black patches leucomclana. 



A'. Light testaceous brown, with four discoidal white spot on 

 each elytron, or totally black on the upper side. 



B 1 . Frontal part densely pubescent; prothorax with two 

 fuscous longitudinal discoidal bands either entire or 

 interrupted simonsi. 



Psacadoptera leucomelana, Gor. and Perch., 

 Monogr. d. Cet., p. 202, pi. 36, fig. 6. 

 Light testaceous brown, sub-opaque and glabrous on the upper 

 side; head glabrous, closely and finely punctate like the clypeus 

 which is plainly attenuate and sinuate laterally towards the apex 

 the margin of which, plainly sinuate in the middle, is strongly 

 reflexed and on that account sub-dentate, on the basal part of the 

 head there are three fuscous macules ; prothorax moderately closely 

 punctate, the round punctures being separated from each other 

 by a space nearly double the size of their diameter, in the median 

 discoidal part are four fuscous patches the anterior ones of which 

 are half the size of the others ; scutellum impunctate ; elytra deeply 



