of the Oenus Catasarcus. 17 



■7 g Elytra densely scaly. 



i Elytra short, subcordiform . . . C. marginispinis, u. sp. 

 i i Elytra longer, ovate. 

 j Rostrum shorter than the head. 

 k Scales on the elytra mingled with a sand- 

 Uke exudation, and with few very small 

 set£E posteriorly ... . . C. capita, n. sp. 



k k Scales on the elytra adpressed, with thick 

 black setffi posteriorly, issuing from small 

 naked points ..... C. ochraceus, n. sp. 

 j j Eostrum as long as the head . . C. cicatricosus, n. sp. 

 // Prothorax as broad at the base or broader 

 than at the middle. 

 I Posterior spines stout, broad at the base. 

 m Head bounded at the sides between the eye 

 and the transverse sulcus by a well-marked 

 carina. 

 n Elytra scaly. 



o Prothorax more than twice as broad as long C. brevicollis, n. sp. 

 Prothorax less than twice as broad as long. 



p> Elytra with rows of glossy tubercles . C. nitidulus, n. sp. 

 p p Elytra with transverse ridges . . C. humerosus, n. sp. 

 n n Elytra with a few straggling scales only C. funereus, n. sp. 

 m m Head with scarcely any carins in front C. spinipennis, Fahr. 

 I I Posterior spines more slender, not so broad 

 at the base. 

 q With whitish scales, more or less condensed C. ericius, n. sp. 

 q q With very minute scattered scales, generally 



distributed . . ' . . . C. scordalus, n. sp. 



Section 3. 



Elytra with more than four dorsal spines, exclusive of the 

 post-humeral. 



. a With two sub-basal spines, four median, 



and two posterior. 

 b A line of tubercles between the siiture and 



first row of punctures . . . C. trihulus, n. sp. 



h h No hne of tubercles between the suture and 

 first row of punctures, 

 c Scales on the elytra unicolorous , C. trapa, n. sp. 



c c Scales on the elytra forming whitish lines 

 on the sides. 

 d Scales mixed with a sand-like exudation C. furfuraceus, n. sp. 

 d d Scales immixed with any exudation . C. lepidus, n. sp. 

 a a Without sub-basal spines . . . C. concretus, n. sp. 



TRANS. ENT. SOC. 1870. — PART I. (MARCH.) C 



