COCKROACHES, LOCUSTS, AND GRASHOPPERS. 403 



Section I. Cockroaches {Blattarice). 



I collected some thirty species of Blattariae, including Peta- 

 sodes dominicana, Sauss. ; Tarraga guttiventris ; Proscratea conspersa, 

 Sauss. ; Brachycola vittata (?) ; Epilampra agathina, Sauss. ; E. 

 subconspersa, Clk. ; E. caliginosa, Clk. ; Pseudomops femoralis, 

 Clk. The names are taken from the specimens, and the autho- 

 rities from the " Catalogue of the Specimens of Blattarise, in the 

 collection of the British Museum," by Francis Walker, F.L.S., 

 1868, from which book these notes are also extracted. 



In a summary at the end of the volume, Mr. Walker says, " In 

 this catalogue, 686 species of Blattariae are recorded, and there 

 are many yet unnamed. It is not easy to ascertain correctly their 

 geographical distribution. Some species pass from one region to 

 another, and multiply excessively in artificial circumstances. Other 

 species are of rare occurrence, and the continuance of them may 

 be partly insured by their seeming to be what they are not, or by 

 their mimicry of various kinds of Coleoptera and Phasmids, and of 

 Myriapoda, and of Isopod Crustacea. . . . The fore wings are 

 remarkable on account of their various structure. . . . The groups 

 cannot be arranged according to their affinities in a line, or in a 

 circular series ; in other words, several different lines or arrange- 

 ments may equally well express the natural system.'' 



Section II. Locusts and Grasshoppers {Saltatoria). 



I collected some twenty species, including, among the grass- 

 hoppers (Gryllidse), Gryllus capensis, Linn. ; and among the 

 locusts (Locustidse), Meroncidius varius, Bates ; Steirodon citri- 

 folium, Serv. ; Diplqphyllus mundus, Clk. ; Pterochroza pictifolia ; 

 besides undetermined species of the following genera: Con- 

 cephalus ; Phylloptera, Serv. ; Cephalosama, Serv. ; Mesops, Burm. ; 

 Minorissa, Macrolyristes (?), Caloptmus, Burm. ; and Stenobothrus, 

 Fisch. The names are taken from the specimens and the 

 " Catalogue of the Specimens of Dermaptera Saltatoria in the 

 Collection of the British Museum," by Francis Walker, F.L.S., 

 1868-71. That author states that the genus Pterochroza, with 

 the closely allied Cycloptera, " excel all other Saltatoria in the 



