552 Mr. T. Vernon Wollaston on the 



60. HOMALOXENUS (nov. gen.). I am indebted to John 

 Gray, Esq., for the very curious little insect, from the 

 West Indian island of St. Domingo, to receive which the 

 present genus is proposed ; and it is so perfectly distinct 

 from every other Cossonideous form with which I am 

 acquainted that I had some hesitation at first in admitting 

 it into the present family at all ; nevertheless the unmis- 

 takeable structure of its abdominal segments, in conjunc- 

 tion with its tibial hook and other details, are sufficient I 

 think to indicate its affinities. Its distinctly annulated 

 club however, added to its elongate, slender, straightened, 

 and longitudinally-strigose rostrum, into which the antennas 

 are implanted at the apex, are anything but in accordance 

 with the usual modifications of the Cossonid type, being 

 prima facie somewhat suggestive of certain groups amongst 

 even the Erirhinides, an analogy which (however super- 

 ficial) its uni-dentate femora would not tend to invalidate. 

 But apart from these various peculiarities, Homaloxenus 

 is remarkable for its rather broad and extremely depressed 

 body which is subopake, ferruginous, and sparingly 

 clothed with a very minute decumbent subcinereous pubes- 

 cence ; for its entire prothoracic disk being very curiously 

 flattened, or impressed; for its antennas being long and 

 slender, with the second joint of their funiculus (which is 

 remarkably lax) conspicuously lengthened; and for its 

 tibias (which have their hook very small) being barbed, or 

 pencilled, at their apex with fulvescent hairs. Its scutellum 

 is largely developed, its metasternum is somewhat short, 

 and the third articulation of its feet is much expanded and 

 bilobed. 



61. STENOTIS (Wollaston, Ins. Mad. 316. 1854). 

 The Madeiran genus Stenotis is founded on one of the 

 most remarkable little Cossonids with which I am ac- 

 quainted, its extremely narrow, elongate outline, pallid 

 hue, and subdepressed, delicately sericeous surface, added 

 to the excessive length and slenderness of its rostrum, its 

 elongated prothorax and metasternum, its thickened legs, 

 and its unusually widened and deeply bilobed third tarsal 

 joint, giving it a character essentially its own. Its sub- 

 sericeous surface indeed, and general structure, show it to 

 belong, unmistakeably, to the same department as Mesites ; 

 nevertheless I believe that its nearest known ally is the 

 South- American genus Eucoptus, from Brazil and the 

 region of the Amazon, with which it has a good deal in 



