Bicport on a Collection of African Locustidie. 73 



double row of whitish spots ; the apical portion of the wing sub- 

 hyaline, with two large transverse black blotches, enclosing more or 

 less transparent spaces ; the second is indeed almost divided into 

 brown and transparent longitiidinal streaks, connected by a brown 

 transverse liand on the inner side ; and it is followed by two series 

 of long brown stripes on the nervures ; (extremity of the tegmina 

 broken). Wings with the basal third white, with strongly-marked 

 blue nervures, which are sufficiently close together at the base to 

 give the wing a distinctly blue appearance at that point ; this inner 

 portion of the wing is bordered by a very broad blue-black band, 

 extending from the costa, and covering a considerable portion of the 

 hind margin as far as the anal angle ; the outer part of the wing 

 transparent, with brown nervures, varied in the upper portion by 

 pale yellow ones : beyond which are three irregular. brown longitudinal 

 stripes, but the extremities of the wings, as well as of the tegmina, 

 are wanting. 



Described from a single broken specimen from the 

 Transvaal, without special locality. The markings of the 

 femora alone are sufficient to distinguish it from G. 

 dohrnianus, Sauss., which has also blue hind wings. 



37a. Gastrimargus clohrnianus. 



CEdaleus {Crcistrimargus) dohrniaoius, Saussure, Mem. Soc. 

 Geneve, xxx (1), p. 166 (1888). 



Hah. Transvaal (Dohrn's collection). 

 Not in Mr. Distant's collection. 



Genus Oj^daleus. 



(Edalcus, Fieber, Lotos, iii, p. 126 (1853); Stal, Rec. 

 Orth., i, p. 123 (1873) ; Saussure, Mem. Soc. Geneve, 

 xxviii (9), pp. 110, 115 (1884), xxx (1), pp. 18, 37, 40 



(1888). 



38, CEdaleus favus. 



Gryllus {Locusta) fnvus, Linnaeus, Syst. Nat. (ed. x), i, 

 p. 433, n. 53 (1758); (Pet. Gaz., pi. 3, fig. 6, fig. typ.). 



Acrydium nigrofascicdum, De Geer, Mem. Ins., iii, p. 493, 

 pi. 41, fig. 5 (1773). 



Pacliytyhts ((Edalens) niqrofascicdus, Stal, Rec. Orth., 

 i, 'p. 126 (1873). 



