and Species of Longicorn Coleoptera. 91 



rather broad, with two spines on each side, the posterior angle un- 

 armed ; sciitellum transverse, with fine punctures; elytra sub- 

 parallel, finely punctured with three costulae and the sutnral angle 

 distinct ; legs moderate, chesnut brown, tibiae canaliculate, poste- 

 rior tarsus rather long. 



Length 1 7 lines. 



This seems to be the common form of Pr'ionus in North China. 



Prionus hijdropicus. 

 P. castaneo-fuscus ; mandibulis capiteque subtiliter punctatis, 

 inter oculos subsulcato ; prothorace punctato, angulo posteriori 

 spinoso ; elytris bicostulatis scabrosis, angulo suturali rotun- 

 dato. China Borealis. 

 Dull chesnut brown, eyes moderate, rather distant, with a flat 

 surface between them, divided by a slight groove and finely 

 punctured ; mandibles very minutely punctured ; antennae with 

 the last five or six joints very short, and, except the last, cup- 

 shaped ; prothorax with three spines on each side, including the 

 one at the posterior angle ; elytra widest in the middle, rather 

 short, convex, sub-costulate, minutely corrugated, and with very 

 slight traces of punctures, the sutural angle rounded ; legs mode- 

 rate, tibiae simple, posterior tarsus short. 

 Length 14 lines. 



Neostenus, 



Head small, eyes reniform, palpi slender, unequal; antennae 

 rather long, the first joint shorter than the third, the fourth and 

 fifth rather longer, and with the remainder sub- equal and dilated 

 on one side ; thorax simple, rounded ; elytra very long and nar- 

 row, but shorter than the abdomen ; legs very short, tibiae simple. 



The habit of this genus is so very remarkable as to suggest a 

 doubt, at the first glance, of its belonging to the Piionidcs ; its aflfi- 

 nity, however, to Aphnnasium and Philus, is evident. i'he only 

 example which has fallen under my notice is in Mr. Saunders's 

 collection, and is apparently a female : when the male is known it 

 will be probably necessary to modify some of the above charac- 

 ters. 



Neoslenus Saundersii. (PI. XXIL fig. 2.) 



N. fusco-piceus, subtus pubescens ; prothorace crebre punctato ; 



elytris brunneis, costatis, humeris elevatis. Nova Cambria 



Australis. 

 Pitchy brown, with a greyish pubescence beneath ; thorax 

 thickly and minutely punctured ; elytra light brown, each with 



