Bruner: Orthoptera from Africa. Ill 



those on the metasternum nearly contiguous in the male, but some- 

 what distant in the female. Prosternal spine rather large at base, 

 short, evenly pyramidal, the apex acuminate. Apex of male abdomen 

 scarcely clavate, the last ventral segment short; supra-anal plate 

 moderately large, the basal half with parallel sides and prominent 

 lateral carinae, the apical half separated from the basal by a strong 

 transverse sulcus, tapering, and with the outer portion spatulate, the 

 middle sulcate, the apophyses of the preceding segment fairly robust 

 at base, bowed inward until they touch, the apical half slender and 

 parallel, resting in the median longitudinal sulcus of the supra-anal 

 plate which they fully occupy. Cerci of the male rather long, moder- 

 ately robust and hirsute, directed upwards and bowed inwards for 

 three-fifths of their length, from which point they are directed back- 

 wards and become smooth and more slender, their apices bluntly 

 acuminate and extending beyond the tip of the last ventral segment. 



Length of body, cf , 17 mm., 9 , 20 mm.; of pronotum, cf , 4 mm., 

 9, 5 mm.; of tegmina, cf, 8.5 mm., 9, 10 mm.; of hind femora, 

 cf, 10 mm., 9 , 12 mm. 



Habitat: Batanga. Two males and two females, taken by F. H. 

 Hope. C. M. Ace. No. 5293. The types are in the Carnegie Museum. 



Genus Pteropera Karsch. 



Pteropera Karsch, Berlin, Ent. Zeitschr., XXXVI, pp. 185, 189 (1891); Kirby, 

 Syn. Cat. Orth., Ill, p. 473 (1910). 



The locusts included in this genus are medium-sized insects, with 

 greatly abbreviated tegmina and without wings. They seem to be 

 confined to the western coastal regions of tropical Africa. Three 

 species have been previously described. A fourth is now added. 

 The chief character of the genus seems to be the absence of a longi- 

 tudinal sulcus on the exterior median field of the hind femora, the 

 sulci and costae of the area being arcuate and continuous. The various 

 species may be separated as follows: 



Key to the Species of Pteropera. 



A. Hind femora without dark markings. Pronotum lacking the lateral longi- 

 tudinal piceous band tiniformis n. sp. 



AA. Hind femora more or less varied with black or fuscous. Pronotum marked 

 with a longitudinal dusky band along the upper field of its lateral 

 lobes. 

 b. Smaller (cT, 21 mm.; 9, 28 mm.). General color pale olivaceous 



