A.OOBJSTUS. 309 



CEYLON : Tattipola (E. K. Green, May). 



Type in the British Museum. 



I know only one specimen of each sex. 



This species reproduces in almost every detail the superficial 

 characters of Trigonostomum ursus, Arr., another Ceylonese insect 

 to which it bears so extraordinarily close a resemblance as to 

 preclude the idea of a mere convergence of characters. The form, 

 colouring, clothing and sculpture are identical, but the pygidium 

 of the male is more thickly hairy. The form of the labruin and 

 that of the sedeagus of the male are the only other tangible 

 distinctive characters. 



325. Adoretus mavis. 



Adoretus mavis, Arrow, Ann. Mag. Nat. Hist. (8) viii, 1911, 



This is a large rather massive species, moderately closely 

 clothed with decumbent whitish setae, which are very dense 

 upon the scutellum and form four longitudinal rows of closer 

 agglomerations upon the elytra, which also bear a very few 

 erect scattered hairs. There is a slight metallic lustre upon 

 the anterior part of the body. 



The clypeus is semicircular and rugose, and the forehead 

 coarsely punctured. The prothorax is moderately short, strongly 

 and rather closely punctured and at the sides rather rugosely ; 

 the lateral margins are continuously rounded, the front angles 

 acute and the hind angles indistinct. The elytra are closely 

 and rather coarsely punctured, with narrow indistinct costae 

 coinciding with the rows of patches of agglomerated setae. The 

 pygidium is rugosely, the sides of the metasternum densely, and 

 its middle very sparsely, punctured. There is a continuous 

 sharp carina extending along each side of the abdomen and 

 coinciding with the outer margins of the elytra. The posterior 

 margin of the propygidium is also sharply raised and united 

 to the lateral carinae by a short ridge which cuts off the hist 

 spiracle on each side. The front tibia is rather sharply tri- 

 dentate. 



3 . The eyes are rather larger. 



5 . The clypeus is a little longer, and the apex of the abdomen 

 slightly indented beneath. 



Length, 13-14 mm. ; breadth, 6-7 inrn. 



CEYLON: Bogawantalawa, 4900-5200 ft. (G. Lewis}. 



Type in the British Museum. 



326. Adoretus bombinator. 



Adoretus bombinator, Burm., Handb. Ent. iv, 2, 1855, p. 532. 



Chestnut-brown, closely clothed above and beneath with 

 closely appressed pale setae, which become scales on the pronotum 

 and elytra. Those of the latter are not quite evenly distributed* 



