1907.1 



NATURAL SCIENCES OF PHILADELPHIA. 



163 



(William Foster.) 



*Steleoxiphu8 catastatee* n. sp. 



Type: ? ; Sapiicay, Paraguay. ^larch 5, 1905 

 [Hebard Collection.] 



Size medium. Head slender, subparallel, the caudal width contained 

 about two and a half times in the length; occiput w'ith a very fine 

 median longitudinal impressed line 

 and a lateral one extending caudad 

 from each eye; eyes subcircular, 

 strongly flattened when viewed 

 dorsad; ocelli distinct but small and 

 placed in a large triangle between and 

 immediately caudad of the antennae. 

 Pronotum slender, slightly com- 

 pressed mesad, a distinct transverse 

 and a less distinct longitudinal im- 

 pressed line present. Mesonotum 

 nearly five times the length of the 

 pronotum, regularly but slightly ex- 

 panding caudad. Metanotum about 

 equal to the mesonotum in length, 

 subequal in width except for a very 

 slight caudal expansion; median seg- 

 ment about a third as long as the 

 remainder of the metanotum, and in 

 its own length nearly twice its width. 

 Abdomen with the proximal seven 

 segments distinctly longitudinal and 

 increasing in length from the first to 

 the sixth, the seventh being shorter 

 than the sixth and about equal to the 

 first ; eighth and ninth segments sub- 

 equal, each hardly two-thirds the 

 length of the seventh, fifth to eighth 

 segments tectate, ninth tectate and 

 carinate dorsad; supra-anal plate 

 very small, trigonal; cerci simple, 

 styliform, about two and a half times 

 the length of the supra-anal plate; 

 subgenital opercule strongly compressed, the lateral surfaces con- 



Fig. 5. — Steleoxiphus catastates n. 

 gen. and sp. Dorsal \iew of 

 type. Natural size. 



* KaraffT.TT^/r, an establisher. 



