of the Genus Eluchista. 305 



24. Elach'ista GriseeUa, Zeller. 



Intermediate between Incanella and Dispos'itella ; larger and 

 broader winged than Incanella, and the costal spot not so much pos- 

 terior to the dorsal spot ; smaller than Dispositella, the fascia not so 

 broad, the spots less distinct ; the black scales in the cilia are 

 much more distinct both in Incanella and Dispositella than they 

 are in this species. 



Expansion of the wings 4 — 4^ lines. Head grey ; anterior wings 

 rather broad, brownish grey, with a nearly straight white fascia 

 before the middle, and with two whiiish opposite spots beyond the 

 middle, that on the costa rather posterior, with its apex only a very 

 little prolonged towards the hind margin ; cilia pale grey. 



Larva unknown. 



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

 and in Tuscany. 



25. Elachista Dispositella, Mann. 



Allied to the preceding but longer-winged, the fascia broader 

 and the spots more distinct. 



Expansion of the wings 5 lines. Head whitish-grey; anterior 

 wings grey, with a broad whitish fascia before the middle, rather 

 attenuated on the costa, and two whitish opposite spots beyond 

 the middle; that on the inner margin being triangular, and that an 

 the costa decidedly posterior, is almost straight, reaching nearly 

 half across the wing ; cilia whitish, intersected by a distinct line 

 of blackish scales. 



Larva unknown. 



Collected by Herr Mann at Fiume in Croatia, in May. 



26. Elachista Ohscurella, Stainton. 



A sombre looking insect, best known by its general dull appear- 

 ance ; the fascia is very indistinct and the spots are hardly more 

 visible ; it comes nearest to Humilis, but in that the spots are more 

 distinct, especially the costal spot, which is more nearly opposite to 

 the dorsal spot; in Obscurella the costal spot is posterior to the dorsal 

 spot. The female is very different, far more like Nigrella, but the 

 costal spot is more posteriorly placed than in that species, and the 

 inner margin is white from the base to the fascia. 



Male. — Expansion of the wings 4| lines. Head pale grey ; an- 

 terior wings grey, irrorated with darker scales, with very faint 

 indications of a paler fascia before the middle, and two opposite 



