Genera and Species of Coleoptera. 43 



Convex, dark pitchy-brown ; head rather broad and a little flattened 

 in front, finely punctured ; prothorax very transverse, with numerous 

 areolated punctures, tumid anteriorly behind the head, the sides and 

 disc somewhat concave, the base with two round prominences on each 

 side and a transverse raised line behind them, the anterior angles short, 

 obtuse ; scutellum triangular, lying in a hollow between the elytra ; 

 elytra shining, slightly oblong, covered with irregular elongate punc- 

 tures, elevated at the base, the shoulder with two tuberous prominences ; 

 antennae, palpi, body beneath, and all parts of the legs not exposed 

 when the animal is rolled up, pale ferruginous. Length 2 lines. 



Sjphceromorphus Wallacei. 



S. subdepressus, nigro-piceus ; prothorace aequo ; elytris rotundatis, basi 

 paullo convexis. 



Hub. Borneo (Sarawak). 



Subdepressed, dark pitchy inclining to black ; head slightly convex, 

 finely punctured; prothorax smooth, even, with minute areolated 

 punctures, its anterior angles rounded ; scutellum very large, triangular ; 

 elytra with a nearly rounded outline, the base towards the shoulders 

 very slightly convex, covered with delicate elongate punctures ; an- 

 tennae, palpi, body beneath, and legs, where not exposed when the animal 

 is rolled up, ferruginous. Length 1£ line. 



The occurrence of a genus so purely American as Sphasromorphas 

 in Borneo may well excite surprise, as, a priori, it might have been 

 supposed, if any of that group occurred at all in the Indian Archi- 

 pelago, it would have been either a new form, or the Madagascar 

 Synarmostes. I cannot, however, find, from dissection of S. acromialis, 

 any variation of character sufficiently marked to warrant its separa- 

 tion from SphceromorpJius. Dedicated to Mr. A. Wallace, to whose 

 researches in the Indian Archipelago we owe so much. 



Idgia [Telephoridse]. 

 Laporte de Castelnau, in Silberm. Bev. Ent. iv. p. 27. 



Idgia flavirostris. 



I. viridis ; capitis fronte nigra ; rostro, prothorace, femoribusque flavo- 

 testaceis. 



Hab. North China. 



Elongate, deep green, scarcely shining ; head thinly punctured, a 

 deep A-shaped impression between the eyes, front to just below the 

 eyes black, rest of the head and palpi yellow ; prothorax yellow, sub- 

 quadrate, a little broader than the head, its sides towards the base 

 somewhat concave with a longitudinal impression in the centre ; scu- 

 tellum obtuse behind; elytra deep green, narrow (from contraction 



