564 ]Mr. T. Vernon Wollaston on the 
antenna? (avIiIcIi are inserted rather bcliind the middle, 
instead of at the middle point) have their fiiniculus much 
shorter, as well as more robust and compact, Avith the 
second joint so greatly abbreviated that it is almost con- 
cealed from view, and its feet are less elongate, with the 
third articulation simple (instead of expanded and bilobed^. 
Its capitulum, too, although not particularly abiaipt, is 
very largely developed; and its eyes, although not pro- 
minent, are likewise large. 
78. Stenomimus {nov. gen.). — The present group is 
founded on a very minute, narrow, and pallid little 
Brazilian Cossonid, several examples of Avhich were cap- 
tured by Mr. Fry near liio Janeiro ; and it may perhaps 
be looked upon as the more southern representative, in 
South America, of the preceding genus — Avhich occurs 
fi'om, at all events, the West Indian islands to the region 
of the Amazon. It is indeed very closely allied to Micro- 
mimus, — from which it nevertheless differs in its narrower, 
and relatively more parallel and elongated, outline ; in its 
surface being less shining, and (at any rate so far as the 
elytra are concerned) minutely and sjDaringly sericeous; in 
its rostrum being longer, slenderer, and more strictly 
parallel ; in its antennre being medial as regards their 
insertion (instead of ante-medial) ; in its eyes being more 
rounded, and (instead of depressed) extremely prominent; 
in its prothorax being more triangular, and more deeply 
constricted in front ; in the elytra being proportionately 
rather longer and more linear, but at the same time less 
acuminated at their extreme apex, where the pygidium is 
but barely covered ; in its tibire being more CA'idently 
armed at their inner angle Avith a minute S})inule ; and in 
its tarsi being slenderer. 
79. INIiCROMlMUS {nov. rjen.). — The two minute and 
rather closely allied sjiecies for Avhich the present genus is 
proposed, are from the collection of Mv. Fry. One of 
them is West-Indian, liaA-ing been taken in Trinidad ; and 
the other Avas captured, apparently by INIr. Bates, in the 
region of the Amazon. They are remarkable for their 
pallid hue, and shining, deeply sculptured, somewhat 
depressed surfaces ; for their rostrum being short, broad, 
and nearly parallel (it being but very slightly naiTOAved 
posteriorly) ; for their eyes being transverse and ex- 
tremely large, but nevertheless completely sunken or 
