BRUNER: ORTriOPTERA FROM AFRICA. 105 



localities. Others are just as much at home among the vegetation of 

 swamps, and woodlands. More forms of this family than of all the 

 others combined have become adjusted to special food-plants and 

 peculiar haunts, from which they seldom stray, except by accident. 

 Hence the great diversity in structure, habits, color, etc., shown by 

 different species. A very considerable number of genera arid species 

 have become wingless, or at least subapterous, so that frequently they 

 are passed over, by ordinary collectors, who are unfamiliar with the 

 group. Except by orthopterists they are generally considered imma- 

 ture, and consequenth^ are not taken. 



Genus OxYA Serville. 

 Oxya Serville, Ann. Sci. Nat., XXII, pp. 264, 286 (1831); Ib., Ins. Orth., p. 675 



(1839) and various authors to date. 



This is an Old World genus and contains a number of species, which 

 resemble each other rather closely. For the most part they are 

 meadow-grasshoppers, and are prevailingly grass-green in color, rather 

 slender in form, and active in their movements. 



25. Oxya hyla Serville. 

 Oxya hyla Serville, I. c, p. 287 (1831) ; Kirby, Syn. Cat. Orth., Ill, p. 393 (1910) . 

 Acridium hyla Serville, /. c, p. 678, pi. 12, fig. 4 (1839). 



Heteracris viridivillata Walker, Cat. Derm. Salt. Brit. Mus., IV, p. 660 (1870). ■ 

 Oxya serrulata Karsch, Zool. Jahrb., Syst., V, p. 662, pi. 45, figs. 8, 8a, b (1891); 

 • Brunner von Wattenwyl, Ann. Mus. Genova, XXXIII, pp. 151, 152 (1893). 



Batanga, F. H. Hope, Collector, two males, two females; Lolodorf, 

 one male and one female, A. I. Good, Collector. 



Genus Spathosternum Krauss. 

 Spalhoster7imn Krauss, Sitz. Akad. Wiss. Wien., Math. -Nat. CI., LXXVI, p. 44 

 (1877); StAl, Bihang, Svensk. Akad. Handl., V (4), pp. 50, 97 (1878). 



26. Spathosternum pygmaeum Karsch. 



Spathosternum pygmaum Karsch, Berlin, Ent. Zeitschr., XXXVIII, p. no (1893). 

 Four males and two females from Batanga are referred to Karsch's 

 pygmceum. They were collected by F. H. Hope in March and April, 

 1914. C. M. Ace. No. 5293. 



Genus OxYRRHEPES Stal. 

 Oxyrrhepes St.4l, (Efv. Vet.-Akad. Forh., XXX (4), pp. 40, 53 (1873); Ib., Recens. 

 Orth., I, pp. 40, 79 (1873), etc. 



