THE CANADIAN ENTOMOLOGIST. 245 



Second stage. — Much as before. Width of head, 0.4 mm. Body 

 rather dark honey-yellow, greenish tinged. Two transverse rows of sub- 

 conical tubercles are seen on each segment, bearing minute setae which 

 are blackish. 



Third stage. — Head brown, shining, eye black, mouth dark ; width, 

 0.55 mm. Body greenish-yellow, rather sordid and only slightly shining. 

 Thoracic feet slightly marked with black and traces of lateral and broken 

 substigmatal black lines appear, most distinct centrally. Setiferous 

 tubercles blackish. 



Fourth stage. — Head minutely pilose, blackish-brown, eye black ; 

 width, 0.75 mm. Thoracic feet pale. Body marked as in the next stage, 

 but the tubercles are larger in proportion, and the subventral black 

 patches are rounder and more evidently cover the anterior and posterior 

 patches of tubercles. 



Fifth stage. — Head brownish-black; width, 1.0 mm. Practically as in 

 the next stage. The body tubercles are tinged with brownish. 



Sixth stage. — Head well-rounded, slightly acute at vertex, not con- 

 spicuously flattened before ; shining black, sparsely pilose ; width, 1.4 mm. 

 (or as large as 1.7 mm. in some ? ? ). Thoracic feet spreading, black, 

 pale at the joints. Abdominal feet present on joints 6-12 and 13 pos- 

 teriorly (22 feet). Body smooth, subannulate or creased, not shining, 

 colour subtranslucent greenish ochre, with an even, continuous, black lateral 

 line, and a geminate interrupted subventral one. Two transverse rows 

 of smooth, inconspicuous, concolorous, setiferous tubercles on each seg- 

 ment, of moderate size and arranged subventrally in the black patches 

 in clusters. Venter pale. Joints 2 and 15 posteriorly of a darker ochre. 

 The larva? rest on the edge of a leaf, and lash the posterior part of their 

 bodies vigorously when disturbed, holding on to the leaf by the thoracic 

 feet. 



Seventh stage. — The larvae do not feed in this stage, but enter the 

 ground soon after moulting. Head as before, its width the same (1.4-1.7 

 mm.) Body much the same, but smooth. The tubercles are represented 

 by elliptical watery areas in three rows on each segment, with rudimentary 

 setae. The colour is a rather opaque yellow, with no shade from the 

 alimentary canal. The black marks are the same. 



Cocoon. — Formed beneath the ground; thin, crusty and brittle ; ellip- 

 tical and of uniform texture, brown in colour. Size, 8x4 mm. 



