165 



Head with numerous and rather coarse, but partially- 

 concealed, punctures ; ocular fovea narrow and elongate. 

 Rostrum rather thin, almost twice the length of head, feebly 

 increasing in width to base and apex, rather coarsely punc- 

 tured throughout, and with a very feeble median carina on 

 the basal half. Antennae inserted almost in exact middle of 

 sides of rostrum, first-sixth joints subcylindrical, second 

 slightly longer than third, and thinner, but not much shorter 

 than first, seventh-eighth subtransverse, shorter and wider 

 than the preceding joints, ninth-eleventh still wider and 

 forming a club, the length of which is equal to the six pre- 

 ceding joints combined, eleventh as long as eighth-tenth com- 

 bined, rrothorax feebly transverse, strongly convex, sides 

 strongly rounded, but with somewhat sinuous outlines ; with 

 dense and rather coarse, but partially-concealed, punctures. 

 Elj/fra about four times the length of prothorax, parallel- 

 sided to near the apex, strongly convex, interstices rather 

 strongly elevated, the alternate ones somewhat wider than 

 the others : striae with fairly large, but more or less concealed, 

 punctures. Under surface with dense, rather small, and par- 

 tially-concealed punctures. Legs rather short. Length (in- 

 cluding rostrum), 22 mm. 



Ilah. — Western Australia : King George's Sound (type in 

 Macleay Museum). 



In general appearance something like the female of 

 Eurhynchus Icevior, but differs in being larger, prothorax 

 much wider, rostrum straighter, seconcl joint of antennae 

 longer, instead of shorter, than third, etc. 



There are two specimens (sexes) of this species in the 

 Australian Museum ; the male differs from the female in 

 being smaller, with the rostrum shorter, stouter, and more 

 coarsely punctured. The antennae are inserted closer to apex 

 of rostrum, the second-ninth joints are provided with wide, 

 flan,s:e-like extensions, rather than rami, the tenth is also 

 produced, but in profile appears triangular (the second-tenth 

 on the produced parts are hairy), the eleventh is almost the 

 lens^th of the three preceding combined, narrower than any 

 of the others, and constricted and strongly curved just before 

 the middle. The extensions of the antennae are much shorter 

 than in porreUus, and are longest at about the middle, instead 

 of graduallv elongating to the ninth, the eleventh is longer 

 than in porceJIuft, but otherwise much the same. 



This genus has hitherto been known only from the male 

 of C. porcellus: but the examination of both sexes of the 

 present species suggests to me the possibility that Cfenajihides 

 should be regarded as a subgenus of Eurhj/nrhus only. There 

 are certainly no generic features by which the females of it 

 and of Eurhynchus can be distinguished. 



