C. J. GAHAX— COLEOPTEKA. 205 



width across the base, rounded at the apex, each furnished with three sharp distinct 

 costae, the intervals rather strongly and very densely punctured. Tarsal claws with a 

 distinct tooth at about the middle of their length. 



Length 9|-10; breadth 3^ mm. 



Hah. Mubukii Valley, E. Ruwenzori, GOOO-13,000 ft., and Mt. Kenia district, Brit. 

 E. Africa {R. Craivshay). 



This species somewhat closely resembles M. nohilis Gerst., but is relatively longer 

 and narrower, and further distinguishable from it by the green colour of the tibise and 

 the more distinct groove along the disc of the prothorax. In 31. nohilis the elytra are 

 not more, but rather less, than twice as long as their width across the base. 



Eamily Clerid^e. 

 Fhlceocopus undulatus Gorham, Ann. Mag. N. H. (7) v. p. 72 (1900). 

 Mokia, S.E. RuAvenzori, 3400 ft. ; Zambesia and Natal. 



Family B o s T R Y c H i D ^. 

 SiNOSYLON KUFICORNE Fahr. Ofvers af K. Vetensk.-Ak. Forhand. 1871, p. 665. 

 Mokia, S.E. Ruwenzori, 3400 ft. 



BOSTRYCHOPLITES CORNUTA Oliv. Ent. iv. no. 77, p. 7. 

 Fort Beni, Semliki Valley. 



Family Elaterid^e. 



Alaus trifasciatus, sp. n. (Plate VI. fig. 5.) 



Black ; the prothorax densely covered with greyish scales, and marked with three 

 opaque black spots — two, rounded or suboval, on the disc in front of the middle, the 

 third subquadrate on the middle of the basal declivity ; elytra reddish brown, densely 

 covered with luteous-yellow scales, and marked each with two or three oblique sub- 

 parallel black bands ; the shoulders and the depression around the scutellum also 

 black ; body beneath black, with a covering of ashy-grey scales, the last segment 

 fringed posteriorly with fulvous hairs; antennse, mouth-parts, and legs fulvous-brown. 

 AutenntE rather short, scarcely extending to the middle of the prothorax; third joint 

 nearly twice as long as the second, and equal in length to the fourth. Prothorax a 

 little longer than its breadth across the middle, the sides sub-sinuate, the hind angles 

 divergent, not carinate, the ante-scutellar tubercle feebly raised, transversely depressed 

 at its base, disc evenly and not very strongly convex. Scutellum strongly and 

 somewhat abruptly sloped in front, horizontal and slightly transverse behind. Elytra 



VOL. iix. — PART II. No. 28. — December, 1909. 2 f 



