308 Mr. H. W. Bates on Ccmmhyrnke 



Genus ApnATUM, nov. gen. 



Corpus lineare. Oculi laterales, supra valde distantes ; 

 tubera antennifera rotundata, late separata. Antennae 

 corpore breviores, filiforraes, articulis nee incrassatis nee 

 carinatis, quarto brevissimo. Thorax elongatus, supra 

 subplanus, antice latior, hand constrictus, postice grada- 

 tim attenuatus. Elytra apice utrinque louge bispinosa. 

 Pedes breves^ femora clavata, apice bidentata, tibiae hand 

 carinatae. 



Allied to Tliormesium, but differing from it, as from 

 all other genei'a of Ilndionincv, in the form of the thorax, 

 which is wider in front than behind, and has no trace of 

 constriction, except near the hind margin. The ^A^idely 

 distant eyes, and short antennas, which are exactly fili- 

 form, i. e. are as thick at the apex as at the base (except 

 the first joint), also distinguish the genus. 



1. ApUatum rufulum. 



Ihidion rufulum, White, Cat. Longic. Brit. ]\Ius. p. 234. 



Parvulum, I'ufo-testaceum, parce pilosum, nitidum ; 

 thorace elytrisque (punctis setiieris exceptis) h^vibus. 

 Long. 2| lin. 

 Hah. — River Tapajos. 



Sub-fam. Obriin.e. 

 Genus Obrium. 



Serville, Ann. Soc. Ent. Fr. ISS-i, p. 93; Lacord. Gen. 

 viii. 361. 



1, Ohrium cordicoUc, n. sp. 



Pallido flavo-testaceum, passim pilosum, nitidum ; 

 capito subtiliter rugoso-punctato ; thorace lateribus antice 

 valde dilatato vel tumido, postice constricto, supra polito, 

 loevi, dorso depresso ; elytris apice rotundatis, supra 

 (punctis piliferis exceptis) lasvibus, punctis, fascia tenui 

 prope basin, secunda antice arcuata ])one medium, terti- 

 aque arcuata sensu inverse prope apicem, pallide fuscis ; 

 femoribus clavatis. 



