1907.] Catalogue of the Coleoptera of South Africa. 411 



and strongly curving upwards at apex ; anterior tibiae dentate at 

 apex in the $ , weakly bi-dentate in the $ ; under side, except the 

 anterior coxae, glabrous ; intermediate and posterior tibiae slightly 

 pubescent inwardly. 



Thomson has proposed this genus for a species ranging from 

 Senegambia and Guinea to Southern Ehodesia and Delagoa Bay. 



ISANDULA AFRICANA, Drur., 



Illustr. exot. Ins., ii., p. 54, pi. 30, fig. 4 ; 

 Oliv., Entom., L, 6, p. 31, pi. 8, fig. 70. 



Var. subsuturalis, Kraatz. 



Shiny green or greenish blue, with the dorsal part of the elytra 

 suffused with a flavescent sheen, which is more distinct when the 

 elytra are bluish green instead of emerald-green, and which occa- 

 sionally invades three-fourths of the dorsal part ; head deeply punc- 

 tate on each side of the longitudinal raised part, and sparingly so in 

 the clypeal cavity ; prothorax covered with equi-distant, moderately 

 deep punctures distant from each other, but obliterated in the centre 

 of the disk, except occasionally in some female examples ; scutellum 

 impunctate, but occasionally with a few punctures ; elytra with 

 regular series of round, distinct punctures, or with the punctures 

 finer but still seriate, the short, declivous part is strongly and 

 irregularly plicate transversely, and more roughly so than on the 

 pygidium ; the under side is more numerously punctate in the female 

 than in the male, where the punctures are very scarce, and the 

 sternal process has a distinct transverse suture in the female, but 

 not in the male. 



Owing to its great range this species has developed into numerous 

 local races or varieties, and even in South Africa there is a slight 

 variation in colour and sculpture in examples from different localities. 

 The Mozambique examples are nearer to the Senegal form ; the 

 colour is not so deep emerald-green as in the specimens from the 

 Gold Coast, and there is either a faint tinge of yellow on the elytra 

 or a well-defined parallel flavescent band, but the seriate punctures 

 are equally deep ; it is this form which Mr. 0. E. Janson has identi- 

 fied for me as the variety subsuturalis of Kraatz. In Southern 

 Rhodesia the flavescent sheen of the greatest part of the elytra is 

 intensified and the seriate punctures are much smaller and shallower; 

 these characters, however, are very variable in examples from the 

 same locality. The shape of the genital armature is the same for 

 examples from Senegambia, the Gold Coast, and also for the var. 

 urania, Bat., from the Zanzibar mainland. 



