Rhynchophorons Coleopfera of Japan. 83 



1. Thorax with ocular lobes. Group I. Ophryast'ma ; Pseudoaieo- 



rhinus and Calomycterus. 

 V. Thorax without ocular lobes. 



2. Scrobes lateral, elongate, directed inferiorly, so that their 

 lower margin passes to the under edge of the ros- 

 trum without being directed towards the eye. 

 3. Front margin of thorax with a few hairs (vibrissa;) 

 directed forwards under and behind the eye. 

 Group II. Copanopachys, Meotiorhynchufi, Pia- 

 zomkts, Scepticus. 

 3'. Front margin of thorax without vibrissas. Group III. 

 Amystax, Blosyrus, Catapiomis, TracTiyrJiimif!, 

 Trachyphlceosoma, 

 2'. Scrobes lateral, not directed inferiorly, but towards the eye. 



Group IV. Episo7nus. 

 2". Scrobes more or less superior and foveiform. Group V. 

 Myomlcs, Arrhaphoyaster, Asphalmus^ Oinoioius. 



GROUP I. 



PSEODOCNEORRHINUS. 



Pseudocneorrhiuus , Roelofs, Ann. Soc. ent. Belgique, 

 xvi. (1873), p. 177, and op. cit., xxiv., 1880, 

 p. 10. 



The position this genus should occupy is in the 

 Ophryastina, where it will form a division separated from 

 the American forms by the connate claws. Mr. Roelofs 

 first placed it in the Leptoptsides, of which the Ophry- 

 astina formed, according to Lacordaire, a separate 

 division. With Trachyphlceus the genus has but little 

 affinity, as it possesses well-marked ocular lobes, connate 

 claws, and very deep scrobes. 



1. Pseudocneorrhinus hifasciatus, Roelofs, C.R. Soc. 



enc. Belg., xxii., p. liii, and Ann. ent. Belg., 



xxiv., p. 12. 



This is distinguished from its congeners by the very 



rotund form of the elytra, which are almost circular 



in their outline ; the antennae are very short ; and 



the upright setee on the elytra are fine, short, and 



minute. 



Main island ; Osaka, 14 July, 1881, Hakone, 

 Miyanoshita, Kuwada, Kawatchi. 



