8. N, DUNNING. 19 



M03J0GRAPH OF THE SPECIES OF AFHILAXTHOPS 

 I]«HABITi:VC; BOREAL, AMERICA. 



BY S. N, DUNNING. 



The material on which this study is based belongs (with the ex- 

 ception of J., hakerl Dun. and A. utahensis Baker) to the American 

 Entomological Society. I am much indebted to Mr. Wm. J. Fox 

 for assistance rendered — without which I could never have completed 

 this article. To Prof. C. F. Baker my thanks are due for the loan 

 of the types of bakeri and utahensis % above mentioned. 



APHILAXTHOPS Patt. 

 Aphihnithops Patton, Proc. Boston Soc. Nat. Hist, xx, 401 (1880). 

 Clypeadon Patton, Ent. News, p. 13, 1897. 



Eyes entire, parallel inwardly ; second submarginal cell receiving 

 recurrent uervure near middle, third receiving recurrent near base ; 

 head broader than high, wider than thorax ; basal segment not 

 strongly constricted ; submedian cell of posterior wings falling far 

 short of the median cell on the externo-medial nervure ; 9 with a 

 broad, flattened enclosure on last dorsal segment. 



FEMALES. 



Clypeus 5-dentate, pyjridium triangular, body subdepressed, antennse subfiliform, 

 tending to sub(!lavate. 



A small pair of claspers elsite. 



No claspers. 



Third joint of antennse not longer than 4-5 combined Trigitlus. 



Third joint of antennae longer than 4-5 combined Ki]l»fri^i«llis. 



Clypeus not dentate, evenly rounded, pygidium subquadrate, body ovate, antennae 

 filiform. 



Ground color of head, thorax, legs and abdomen, black taiiriiliis. 



Ground color of head and thorax black, legs always rufous, and alxlonien di- 

 vided between black and rufous, latter usually predominating. 



qiiatlriiiotatiiN. 

 Ground color rufous throughout iitalieiisiiii. 



3IALES. 



Head and thorax extremely hairy llispidlis. 



Head and thorax not more than ordinarily hairy. 



Face covered with thick growth of silvery appressed hairs. 

 Legs black and yellow, ground color black. 



TRANS. AM. ENT. SOC. XXV. FEBRUARY, 1898. 



