The Genus Acrida. 169 



dilatata valde perspicua, apice infuscatte. Abdomen sordide flavidum 

 vel fuscum. Lamina subgeni talis ^ fornicata, bituberculata. $ ? . 



33-5 53 



Long. Corp. . . 

 „ antennae . 

 ,, pronot. . 

 ,, elytrorum 

 „ fern. post. 



11-5 19 

 5 8-5-10 



21 52 



20 37 



Tryxalis siilphuripennis. Gerst., 1873, Van der Decken's 



Reise, iii (2), p. 33, tab. iii, fig. 1. 

 Gerst., 1873, Beitr. Ins. Faun. Zanz., 215, Arch. f. 



Naturf., XXV. 

 BoL, 1889, Orth. Afr. Mus. Lisboa, i, 93. 

 Id. 1893, Det. Gen. Tryx., 2 and 3 (nee Stfil). 



Acrida sulphuripcnnis. De Bormans, 1881, Ann. See, 

 Ent. Belg., x.w, Orth. 



FatricL Zanzibar {Gerst), Duque de Biagan^a, and 

 Lourenc^o Marques (BoL), Zanzibar (Coll. Brunner, No. 10, 

 264), Lower Congo (Coll. Seeldrayers, Coll. mea.), South 

 Africa (Bonn.). 



Very close to A. stall, Bol. 



12. Acrida stdli (Bol). 



Statura majore. Tota viridis ; antennae rufescentes, tan turn 

 basi dilatata apud ^ , post medium apud $ . Alie flaviscentes, 

 byalinas. Elytra femora postica $ paullo superantia, $ valde 

 superantia, acuminata ; pronotum carinis rectis, parallelis ; lobi 

 detlexi carina superiori antice cum carinis dorsalibus parallela. ^ ? . 



$ ? 



Long, corp 45 m.m. 70 m.m. 



,, pronot 6.5 12 



„ elytr 33 60 



„ fem. post. ... 26 40 



Acrida sulfliuripennis. Still (nee Gerst., nee Bol.), 1873, 



Bee. Orth., 95. 

 Tryxalis stdli. Bol., 1893, Det. Gen. Tryx., 2 and 4. 



Patria. Senegal, Gulf of Guinea (BoL), Sierra Leone 

 (Stdl, BoL). 



I do not know this species, and merely give the details 



