ADOUETUS. 315 



the front angles acute aiul the hind angles obtuse. The scu- 

 tellum is long and tinely rugose, except at the apex, which is 

 quite smooth, and the elytra are fiuelj punctured, with the 

 dorsal costae narrow and a little elevated. The pygidiuin is very 

 finely and densely coriaceous. The front tibia is armed with 

 three strong sharp teeth, the uppermost a little farther from 

 the second than that is from the first, and slightly serrated 

 above them. 



d . More elongate and parallel-sided, with the eyes very large 

 and prominent, the legs long and slender, the claws very unequal, 

 and the longer one on the front and middle feet very minutely 

 cleft. 



2 . More ovate, with the eyes smaller, the legs shorter and all 

 the claws simple. 



Length, 11-14 mm. ; breadth, 5'5-7"o mm. 



Bengal : Durgapur, nr. Calcutta 



Type in the British xMuseum ; co-types in the Indian Museum. 



This insect was found by Mr, F. H. Gra\ely close to the 

 water's edge at the Salt Lakes. Larvae were found at the roots 

 of an aquatic shrub, Acanthus ilicifoUus, sometimes in very wet 

 nuid, and the adults were feeding in great abundance upon the 

 leaves of Avicenna. Pupae and adults were also tound in clayey 

 soil a little above the water-level but close to it. 



3'3'3. Adoretus flavus, sp. nov. (Phite V, fig. IG.) 



Pale yellow, with the head, the extremities of the tibi;e and the 

 tarsi dark red. 



The body is elongate-oval, convex, slightly shining, and clothed, 

 uniformly but not closely, with exceedingly minute white setae. 

 The head is large and rather finely rugose, with the clypeus large 

 and its front edge very strongly reflexed, especially in the middle. 

 The pronotum is tinely punctured, not very closely in the middle, 

 densely and rugosely at the sides ; the lateral margins are rounded, 

 the front angles rather acute and the hind angles very obtuse. The 

 scutellum is finely and closely punctured, and the elytra closely 

 and rather finely, but not densely or rugosely, with well-marked 

 but scarcely elevated discoidal costae ; the apical angles are not 

 rounded off. The setae are rather longer and closer near the 

 posterior edges of the elytra, and the pygidium is moderately 

 closely clothed with very short white hairs. A sharp carina 

 extends along each side of the abdomen and is united by a short 

 ridge, cutting oH the last spiracle on each side, to the posterior 

 edge of the propygidium, which is sharply elevated. The con- 

 tinuous ridge so formed coincides with the outer edges of the 

 elytra. The front tibia is armed with three very strong teeth, 

 the uppermost rather farther from the second than that is from 

 the first, and above the teeth the outer edge is coarsely serrated ; 

 the hind tibia is short and broad ; the longer claw beai's a (juadrate 

 lamina at the base and is cleft upon the front and middle feet. The 



