72 M^\\ VOUK STATIC .MUSEUM 



Another larger female. probably also an Oxyethira, was 

 ill tlu- sending i'roin New Mexico, but I can say nothing definite 

 about it in the absence ui' llie '. 



, .NOV. GEN. 



{Spurs 0, -, o. Ocelli present. Head posteriorly with two large 

 pyriform \sarts; disc ele\ated \vilh a median longitudinal line. 

 Antenna- \\itli 1>-1: joints (probably in both sexesj, joints 

 shorter and more submouiliiorm in the $; rather stout, basal 

 joint moderate! v long and slightly curved, second joint some- 

 what shorter, the 1'oiir following subequal and cylindrical, the 

 remainder submouiliform. (1'alpi uncertain from the material 

 in hand.; Legs long and slender. Neural ion apparently simpler 

 than in am of the oilier known genera, (t'ompare the figures.) 



12. Neotrichia collata u. sp. 



In the $ the apex of the abdomen may be described as fol- 

 lows : Above there is a semi transparent transverse plate, at 

 either side of which are two rather longer thin processes which 

 seein to be slightly out-turned at the apex. There are also 

 semitrausparent side pieces rather slender and slightly curved. 

 The inferior appendages consist of t \\ o parallel contiguous proc- 

 esses which at the apex on their inner edges are obliquely 

 truncate and bear one or two teeth. The penis in its' apical 

 portion consists of two closely lying parts of nearly equal 

 length, slightly hooked at the tips. 



A minute and exceedingly interesting form. The figures were 

 rather difficult to obtain from the material received, but the 

 important characters are set forth and will serve sufficiently for 

 identification. 



From New Mexico a large number of interesting cases be- 

 longing to two or probably three species have been sent. One 

 is a veritable O x y e t h i r a , while the others belong probably 

 to H y d r o p t i 1 a , but I arn not sure whether the differences 

 shown by some of the cases are due to individual variation or 

 point to the presence of two species. 



