( 582 ) 



Head, thorax, and abdomen concolorons. 



Expanse of wings : 36 mm. 



1 S from South Park, Colorado, August 1901 (Oslar). 



I refer this species with a query to Exelis Gueu. ; structurally it agrees 

 precisely neither with that nor either of the other genera into whicli Mr. Hulst 

 has distributed the species of this group — viz. Tornos Morr., Coenocharis Hulst, 

 Ilolochroa Hulst, and Si/nylochis Hulst. Possibly it has been described as an 

 ordinary Boarmia. The forewing has a moderately developed fovea ; the antennae 

 of the c? are pectinated, but the pectinations are of an unusual character, being far 

 apart, short and regular, and thickened towards their apices. The face is flat, 

 without tubercles ; palpi quite short ; tongue very slight ; the frenulum strong ; 

 hindtibiae with four short spurs and no pencil of hairs. 



Neuration : forewing, cell half as long as wing ; discocellular vertical above, 

 oblique below ; first median nervule at three-fourths, second close before third ; 

 radiiils normal ; 7, 8, 9 stalked from just before end of cell; 10 and 11 stalkcMl, 

 neither anastomosing : hindwing with costal closely contiguous to subcostal for 

 half of cell, which is more than half the length of wing ; 3 and 7 before the ends 

 of cell ; no radial. 



Leucolithodes gen. nov. 



Closely allied to Ei-ilophodes Warr., Nov. Zool. i. p. 465, from which it diflers 

 in having simple antennae instead of pectinated, and in the absence of abdominal 

 tufts. The head, thorax, pectus, and femora are all hairy. 



Neuration: forewing, cell more than half the length of wing; discocellular 

 vertical ; first median nervule at quite five-sixths, second almost from the same 

 ]ioint as third ; radials normal ; 7, 8, 9 stalked from just before upjier angle, 

 8 and 9 separating only just before apex ; 10 and 11 free, 10 closely approximated 

 to stalk of 8, 9, but not anastomosing ; hindwing with costal and subcostal closely 

 approximated for three-fourths of cell ; 6, 7, and 3, 4 from ends of cell ; no radial ; 

 vein 2, as in forewing, at five-sixths. 



Type : Leucolithodes pantherata Feld. {Bri/optcra). 



The type species is superficially very mnch like Erilophodes arana Dogn., 

 described as a Caripeta. 



Brijoptera lecideata Feld. from (.'hili is also a Leucolithodes. 



