120 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



apical fourth. In the present collection, there are four specimens appar- 

 ently referable to this genus. One of these indicates a new species 

 (Boulder, June 29); but since the limits of variation are wide in tha 

 genus and as yet little understood, it would be unadvisable to increase 

 the number of species from such scant material. 



Zanclognatha cruralis Gueuee. 



" Manitou, July 12." 

 Scoparia centuriella (S.V.). 



" 400 feet above Georgetown, July 8." 



In the present collection there is also a specimen of this Pyralid, which 

 has an extended geographical distribution, being also found in Europe. 



