24 Mr. G. C. Champion on the Heteromerous Coleoptera 



ferruginous. Head finely, rather sparsely punctate, transversely 

 grooved in front ; the antennae moderately long. Prothorax about 

 one-half broader than long, much narrower in front than at the 

 base, the sides rounded anteriorly and slightly converging behind, 

 the angles obtuse ; sparsely, finely punctate, with a narrow space 

 down the middle impunctate. Elytra two and one-half times the 

 length of the prothorax, narrowing from the middle ; rather 

 coarsely crenate-striate, the striifi shallow, the punctures becoming 

 coarser towards the sides and finer at the apex, and not very closely 

 placed ; the interstices feebly convex and sparsely, distinctly punc- 

 tate ; the epipleurse extending to the apex. Fifth ventral segment 

 unimpressed. Anterior tibia; widening from the base, becoming 

 very broad at the apex, finely denticulate on their outer edge, 

 similar in both sexes. 



^ . Head swollen on either side between the eyes, concave in 

 the middle ; prothorax with a broad and very deep transversely- 

 cordate excavation on the anterior part of the disc, the excavation 

 limited posteriorly by a transverse fold, which is slightly depressed 

 in the centre. 



Length 4.^-5^, breadth 15-2J mm. ( (^ ? .) 



Hah. St. Vincent — Windward side and Leeward side. 



Apparently a common insect in the island of St. Vin- 

 cent. Allied to U. retnsa, Fabr., recorded by Fleutiaux 

 and Salle from Pointe-u-Pitre, Grande-Terre, but scarcely 

 half the size of that insect, the thoracic excavation in the 

 male deeper and differently shaped, the anterior tibias 

 similar in both sexes. The colour of the elytra is as 

 variable as in that species. 



Alphitobius. 

 Alphitohius, Stephens,Ill. Brit., Mand., v., p. 11 (1832). 

 Aliiliitohius pkeiis. 



Helops piceus, Oliv., Ent., iii., No. 58, p. 17, t. 2, 



figg. 13a, h (1795). 

 Alphitohius jnceus, Champ., Biol. Centr.-Am., Col., iv., 



], p. 156; Fleut. et Salle, Ann. Soc. Ent. Fr., 



1889, p. 427.* 



Hah. St. Vincent. 

 * It is not necessary to give the rest of the synonymy here. 



