Vou. II, Pr. II] HEBARD—DERMAPTERA AND ORTHOPTERA 327 
15. Schistocerca literosa punctata Scudder 
(Plate 18, figure 8) 
1893. S[chistocerca] I[iterosa] punctata Scudder, Bull. 
Mus. Comp. Zool., XXV, p. 16. [ 2 ; Hood Island, Galapagos 
Islands. ] 
Hood Island, June and September, 1906, 6¢, 182 ; and 
Gardner Island, January and February, 1906, (common up to 
Souoaarhe)) 44 Ie. 
Though very close to /. literosa (Walker), the present race is 
readily distinguished by the features given by Scudder. It is 
the largest of the races of this species. The character of the 
distal fissure of the male subgenital plate, given by Scudder, is 
shown by the series before us to be variable, exhibiting in all the 
races the types described by that author. In the present race 
the caudal tibize are colored as described here for /. literosa. 
16. Schistocerca literosa hyalina Scudder 
(Plate 18, figure 9) 
1893. S[chistocerca] I[iterosa] hyalina Scudder, Bull. Mus. 
Comp. Zool., XXV, p. 16. [4, 2; Tower Island, Galapagos 
Islands. | 
Tower Island, IX, 1906, (fairly common), 126,19. 
This race is also easily separated by Scudder’s diagnosis. In 
size it approximates closely the Chatham Island race, /. literosa 
(Walker). The difference in tegminal coloration is not de- 
cided and is principally indicated in the present series by the 
spots being not quite as much congregated. The caudal femora 
in the present series are, however, distinctive in being uniform 
ochraceous-buff, without trace of glaucous. 
17. Halmenus robustus robustus Scudder 
1893. Halmenus robustus Scudder, Bull. Mus. Comp. Zool., 
DEX, p. 18) pls ies! Gand 7.6. 2; Conway, Bay, Inde= 
fatigable Island; Indefatigable Island; James Island, all Gala- 
pagos Islands. | 
Indefatigable Island, July, 1906, (southern part of island, 
lower edge of green zone at 500 feet), 13,12, in coitu. 
This pair is more brilliantly colored than any of the other 
specimens of the races of robustus before us. The pale dorsum, 
