130 THE CANADIAN ENTOMOLOGIST. 



22. — L. aceriella. Clem., toe. cit., supra, p. 323. 



This is a very variable species both in the larva and imago. Fre- 

 quently the anterior margin and sides of the thorax are white. Sometimes 

 the basal streak is very short, at other times extending nearly ^ the 

 length of the wing. Dr. Clemens says there are two fasciae ; but in none 

 of my specimens does the first one quite attain the costal margin, and 

 usually it is only a short dorsal streak extending to, and confluent with, the 

 basal streak ; and sometimes nearly the entire portion of the dorsal margin 

 included between it and the basal streak is white. Frequently also the 

 second fascia does not quite attain the costal margin, and when it does, it 

 is sometimes interrupted near the costa. Many of these specimens I 

 should have considered as distinct species if I had not bred them from 

 identical mines on the upper side of the leaves of Sugar Maples (Acer 

 Saccharinum). So in a collection of several leaves scarcely any two larvae 

 will be found alike, the general shade of colour and the distinctness of the 

 maculae and translucent spots varying with each moult, and finally, when 

 just ready to become puppe, no traces of either maculae or translucent 

 spots are visible. Alar. ex. }£ inch. Common in Kentucky, Wisconsin, 

 and Pennsylvania. 



Errata. — Ante p. 84, line 5 from bottom, for thinner, read thence ; 

 pp. in & 112, for Ostryarella, read Ostryo?ella ; for Corylzsella, read 

 Cor x Hell a. 



NOTES ON THE LARVA OF 



PRIOCYCLA ARMATARIA Herr. Sch. 



BY W. SAUNDERS, LONDON, ON J. 



Specimens of a nearly black geometric larva which afterwards proved 

 to belong to this species, were taken last year on the 15th of July on 

 currant and gooseberry bushes, on which they were feeding. They fed on 

 the foliage of the black currant as well as of the red, and in fact seemed 

 to prefer it. 



When first taken they answered to the following description : 



Length -45 in. Body tapering a little anteriorly, thicker on middle 

 and hind segments. 



Head small, bilobed, brownish black spotted with white, a streak of 

 white in the upper part of each lobe, a patch of the same color across the 

 middle, produced to a point in the centre, a smaller patch of the same just 



