808 K. I. I'OCOCK 



in. Oi'tliomorplia Ibisixlcata, sp. n. 



2- Co/o/</-, Head and antennae black, the dorsal surface black 

 at the sides, with a pale wide median band, keels pale yellow; 

 lateral surface black , yellow above legs ; sternal surfaces pale 

 yellow, legs pale yellow, infuscate distally. 



Budi/ slender like Strongylusoma, the constriction between the 

 two halves of the segments deep. Head smooth and deeply sul- 

 cate above, hairy below. Antennae longish, slender, segments 2 to 

 4 subequal in length, the G"* considerably shorter than the 3'"'*. 



P* tergile convex, not keeled, the hinder border nearly straight, 

 the posterior angles nearly right angles, the anterior border 

 evenly convex from the posterior angle. The 2'^'' with its keel 

 below the level of the edge of the P^ and of the keel of the 3'^, 

 its anterior angle square, dentate, posterior angle with a small 

 denticle. Keels of the 3''*^ and 4"' slightly but acutely produced 

 behind. Keels of the rest rising above the middle of the side, 

 long, but very narrow, without any anterior margin and scarcely 

 any anterior angle, the margin very slightly thickened, the 

 posterior angles produced, completely spiniform towards the 

 hinder end of the body; keel on the 19"' minute. Dorsal sur- 

 face smooth and polished; the anterior groove conspicuously 

 beaded; the transverse sulcus stretches from keel to keel, very 

 strongly marked, being faintly discernible even on the l'^* 

 tergite ; a deep longitudinal sulcus present on the tergites from 

 the 3'"'^ to the 18"', stronger in the posterior than in the 

 anterior half of the body. Lateral surface almost smooth, granular 

 only at the anterior end of the body. Inferior crest dentiform 

 only on segments 2-4. Sterna longitudinally and transversely 

 sulcate. Anal sternite normal. 



Leys normal, terminated by a claw; on the leg of the 15"" 

 somite the femur and tarsus are subequal and quite twice as 

 lung as the tii)ia which a little excels the trochanter. 



Length about 24 mm.; width 2.5. 



Loc. Kangooii and Meteleo (Garin Gheba). 



