Genera of the Cossonida. 553 



common, not only as regards its narrow, parallel, somewhat 

 flattened, and very minutely sericated body, its elongated, 

 slender rostrum, its greatly lengthened prothorax and 

 metasternum (the former of which is very powerfully con- 

 stricted in front), the conspicuously bilobed third joint of 

 its feet, and the minuteness of its claws, but likewise in 

 the smallness of its eyes, and in the curious tendency of 

 its prothorax to be concave beneath. 



In other respects Stenotis is remarkable for its narrow 

 and porrected head, for its intermediate coxae being not in 

 the least degree more remote from each other than the 

 anterior ones, and for its metasternum (which is remark- 

 ably convex) being furnished on either side in front with 

 a minute transverse plait (or perhaps, rather, a cluster of 

 plaits), which have somewhat the appearance of two 

 roughened foveas. Its antennse (which are medial in the 

 males, but post-medial in the females) are rather long 

 and slender, with their second funiculus-joint appreciably 

 lengthened ; its sculpture is less coarse than in most of the 

 immediately-allied groups; and its prothorax, as in the 

 forms around Mesites and Cossonus, is widely channeled 

 behind. Its type (the S. acicula, Woll.) is one of the 

 rarest insects of the Madeiran archipelago, being found 

 amongst the laurels at a high elevation, on the foliage of 

 which it appears to subsist. 



62. EUCOPTUS (nov. gen.). I am indebted to Mr. 

 Pascoe for the loan of a female example, and to Mr. Fry 

 for a male one, of the interesting little insect from which 

 the characters for the present genus have been compiled. 

 They are both of them South- American, the former, 

 judging from a label which is appended to it, having been 

 captured (I -presume by Mr. Bates) in the region of the 

 Amazon, and the latter in Brazil (I believe near Rio 

 Janeiro). In size and outward appearance Eucoptus has 

 very much in common with such forms as Pentarthrum 

 and Stenotrupis ; but its funiculus is composed of seven, 

 instead of only Jive, joints ; and it is clear to me that its 

 affinities, in reality, are with the types which cluster around 

 Mesites, particularly with the remarkable Stenotis acicula 

 of Madeira. I have already called attention to the many 

 characters which it possesses in common with that insect ; 

 and I need here, therefore, only state that Eucoptus is 

 conspicuous for its narrow, parallel, depressed, and piceous 

 body (the elytra however being of a paler, or more rufo- 



