J, of the Genus Elachista. 321 



Q>5. Elachisla Pollute/la, Fischer. 



A large species, reminding one of Cygmpennellaj but with 

 icattered fuscous scales, which the latter species wants. 



Expansion of the wings 6 — Gg lines. Head white ; anterior 

 wings white, with numerous scattered fuscous scales ; cilia white. 



Larva unknown. 



The perfect insect appears in April and May ; it occurs at 

 Vienna. 



66. Elachista Grossepunctella, Herrich-Schaffer. 



Not closely allied to any other species in the tendency to a tawny 

 fascia near the apex and another beyond the middle of the ante- 

 rior wings; it reminds one slightly of Collilella, but the grey head 

 and basal portion of the wings abundantly distinguish it from 

 that species. 



Expansion of the wings 3 — 3| lines. Head grey ; palpi white; 

 anterior wings white, with the basal half almost entirely greyish- 

 fuscous ; beyond the middle is a tawny blotch on the costa, in 

 which are some coarse dark scales, and a tawny fascia at the 

 apex ; has also some scattered dark scales ; cilia white, intersected 

 by a dark fuscous hinder marginal line. 



Larva unknown. 



The perfect insect appears in June ; it occurs near Ratisbon. 



G7. Elachista NiliduklLt, Fischer. 



The colour of the anterior wings in this species reminds one of 

 Dispilella, but NiliduLlla is entirely destitute of spots ; the pale 

 lemon colour is more decided in Nitiduldla than in Festucicoltlla, 

 which latter is nearly as big again. 



Expansion of the wings 3 Imes. Head pale lemon colour ; 

 anterior wings pale lemon colour, entirely without markings ; cilia 

 rather whiter. 



Larva unknown. 



The perfect insect appears in May and June; it occurs at 

 Vienna and near Ziirich. 



68. Elachista Festucicolella, Zeller. 



Intermediate between Nitidulella and Cygnipennella ; resembles 

 the former in the faint yellowish tinge on the anterior wings, but 

 at once distinguished by its larger size and broader anterior 



