244 A NATURALIST IN THE TRANSVAAL. 



canary-yellow, and the underside of the fore wings deep purplish 

 fuscous, with the apical third of the costa and the cilia dull 

 ochreous. Exp. al. 18 millim. (/. H. D.) 



DIPTERA. 

 (By ERNEST E. AUSTEN, Zool. Dept. Brit. Mus.) 



Fam. TABANIDJS. 

 Pangonia subfasda, Wlk. 

 Silvius denticorniSj Wied. 

 Tabanus socius, Wlk. 

 Atylotus, sp. (allied to Tabanus (Atylotus) diurnus, Wlk.). 



Fam. ASILID.E. 

 Microstylum dispar, Lw. 



Microstylumj sp. (? nov. Closely allied to M. gulosum, Lw.) . 

 LophonotuSj sp. (? nov.). 

 Lophonotus, sp. (? nov. Allied to L. ustulatus, Lw.) . 



Fam. MUSCID.E. 

 Calliphora marginalis, Wied. 

 Musca domestica, L. 



Fam. SARCOPHAGID.E. 

 Sarcophagaj sp. 



Fam. HIPPOBOSCID^. 

 Hippobosca rufipes, Olfers. 



[This species not only attacks horses, but also frequently 

 attached itself to my neck. (W. L. D.)] 



RHYNCHOTA. 

 HETEROPTERA. 



The open plains which surround Pretoria are not cal- 

 culated to prove a home for many species of this order, 

 though the tall blooming grasses and Asclepiads (Gompho- 

 carpus) are particularly attractive to Lygseids (the rare Lygceus 



