of the Genus Lithocolletis, clvii 



Size generally the same as Ulmifoliella. Face and palpi white, 

 head pale yellow, in a few specimens more of a white colour (gene- 

 rally the head of the female is paler than that of the male). Thorax 

 of the colour of the anterior wings, bordered with white, also whitish 

 in the middle in some specimens; antennae faintly annulated, usually 

 most distinct in the middle, before the apex white, the two or three 

 last joints black. Legs whitish, on the shady side dark ; hinder tarsi 

 pure white. Body of the male black-gray, the anal tuft yellowish ; of 

 the female pale gray, nearly the whole of the posterior half and be- 

 neath pale yellowish. In the female of Ulmifoliella it is black-gray, 

 posteriorly pale yellowish, which colour is continued along the back 

 in a long, sharply defined streak. 



Anterior wings shining, pale saffron-yellow, paler than in Ulmifoli- 

 ella, darker than in Cavella; a pure white longitudinal line arises from 

 the middle of the base, it is even shorter than in Ulmifoliella, increases 

 in breadth towards the end, is almost club-shaped, it runs midway 

 between the costa and inner margin, nearly one-third of the length 

 of the wing, and is on both sides clearly margined by the ground 

 colour. The inner margin has at the base a white line, of variable 

 breadth, posteriorly thickest. The wing is intersected nearly in the 

 middle by a slightly curved, broad, snow-white fascia, internally mar- 

 gined with brown, between it and the apex of the wing the space is 

 sometimes almost entirely filled up with blackish scales; on the costa, 

 following one another closely, are three white streaks, internally with 

 brown margins, they are acutely triangular, with their apices turned 

 outwards, the spaces between thein are often shaded with dark brown ; 

 the streak nearest the apex of the wing is generally the largest ; on 

 the inner margin are two similar small triangles, also internally mar- 

 gined with brown, their apices are directed between the costal streaks. 

 The first inner marginal spot is blunt-pointed, the second appears 

 merely as a small blotch partly on the cilia, there is no hinder margi- 

 nal line. Between the last costal and the last inner marginal spots lie 

 the black scales of the apex of the wing, (sometimes they are entirely 

 wanting). The cilia of the hinder margin are whitish, with a dark 

 patch at the anal angle. The under side is more or less blackish, with 

 the costal spots distinct, but the fascia faint. 



Posterior wings shining gray, paler than in L. ulmifoliella ; cilia 

 paler gray. 



L. Spinolella occurs, as far as 1 know, only near Stettin, upon sal- 

 lows, where it is scarce; nevertheless, at Vogelsang, a mile and a half 

 from the town, it was so common in 1849, that there was not a sallow- 

 IX. APPENDIX. E E 



