600 GEOLOGICAL SURVEY OF THE TERRITORIES. 



legs, and the mark of the head. There are now six species known from 

 Texas and Mexico ; of course, it is still impossible to ascertain the spe- 

 cies of the larva from Colorado, but probably it may belong to one of 

 the three Texan species. 



RAPHIDIA. 



The genus EapMdia belongs to the interesting class of genera which 

 are represented largely in Europe and Asia, are entirely wanting in the 

 fauna of North America east of the Rocky Mountains, but are represented 

 again in California, and in the other vast tracts of laud west of the 

 Eocky Mountains. I have seen only two specimens, one from Ogden, 

 Utah (C. Thomas), the other from Rio Grande, Colorado, June 13 (Lieu- 

 tenant Wheeler's expedition). Both belong to different species, and to 

 BapJiidm proper (not to InocelUa) ; both being preserved in alcohol, I 

 am not able to give any better information, the more so as the genus 

 Raphidia contains the most difficult species for determination. 



Family PHRYGAISTINA. 



LEMNEPHILTJS. 



There is a species from Colorado Mountains, August, by Mr. Car- 

 penter, in broken alcoholic specimens. It belongs to the group of L. 

 rhomhicuSj and has nearly its size. 



A very imperfect female from Colorado Mountains, August; it 

 belongs to the group of G. griseus. 



STENOPHYLAX. 



St. divergens, Hagen, Syn., 255, 5. 



Fragments only from the Colorado Mountains, August. Perhaps 

 some of them belong to a different but related species. 



PLATYPHYLAX. 



P. designates y Hagen, Syn., 269, 6. 



Fragments sp. nov. from foot-hills, Colorado, September. 

 P. atripeSj sp. nov. 



Syn. Stathmo])horus, spem., Hagen's Sixth Annual Report, by Professor Hayden, 

 1873, 729. 



Pitchy-black above, orange-colored beneath ; antennae stout, the inner 

 edge orange and serrate ; head before the antennse olange, clothed with 

 orange hairs; palpi orange; head above clothed with black and orange 

 hairs; ocelli very large and prominent; thorax and prothorax tightly 

 clothed with pale hairs, and with longer black hairs, pale on tip ; ante- 

 rior wings large, the apex parabolic, cinereous, somewhat shining ; the 

 veins pitchy-black and very distinct ; costal margin and thyridium 

 pale ; the membrane throughout, with the exception of the costal and 

 dorsal margins, distinctly granulated, sparingly covered with very small 

 orange bairs (perhaps the clothing is spoiled) ; apical cells large,, the 

 first and third longer and pointed as well as the fifth, tbe second and 

 fourth cut straight ; all spaces and cells paler in the middle ; posterior 



