76 THE CANADIAN ENTOMOLOGIST. 



the excision ; the subcostal passes nearly straight to the apex, its basal 

 half being obsolete ; it gives off no branches. Cell unclosed ; the 

 median sends a branch to the dorsal margin about the basal fourth, and 

 becomes furcate about the apical third. Wings horizontal in repose. 



Ciliae of both wings moderately long. The neuration of the primaries 

 is very nearly the same with that of the next described genus, Philoiiome, 

 but is still nearer to Elachista, from which, however, this species differs in 

 having the wings horizontal in repose, and the antennae longer and more 

 pointed. 



T. bifasciclla. N. sp. 



Palpi silvery white ; face white, tinged with golden yellow, which 

 deepens towards the vertex, where it becomes pale ochreous ; antennae 

 with alternate annulations of white and dark brown ; thorax and basal 

 third of the primaries pale saffron, slightly suffused with fuscous ; at the 

 basal third of the primaries is a silvery white fascia dark margined 

 internally, and thence to the tip the wing is pale saffron yellow, suffused 

 with fuscous and white and becoming darker towards the apex : at the 

 apical third is a second white fascia, which is frequently very indistinct 

 or even obsolete, except upon the costa, where it is oblique, distinct and 

 strongly dark margined internally, or rather with a dusky spot on the costa 

 before it. Ciliae dusky yellowish. AL ex. nearly ^ inch. Kentucky in 

 May. Larva unknown. 



ELACHISTA. 



E. praematurclla ? Clem. 



This species belongs to the sub-group containing E. nigrella of 

 Europe. Possibly it may prove to be one of the European species. I 

 am not absolutely certain that my captured specimens belong to 

 praeniaiurella, as I have not seen any of Dr. Clemens' specimens, and do 

 not, indeed, know that there are any extant. I do not know its food 

 plant, though from the frequency with which 1 have found its corpse-like 

 pupa on fallen leaves in "blue grass" pastures, I suspect that it mines 

 that species (Poa pratcnsis)^ and this suspicion is strengthened by the 

 fact that other species of the same group mine plants of the same genus 

 in Europe. Dr. Clemens was not acquainted with the food plant of 

 praematurella. In my specimens the costal and dorsal spots are opposite 

 as Dr. Clemens describes praonaturdla, but the fascia is a little oblique,. 



