THE CANADIAN ENTOMOLOGIST, 21 



Xylomiges simplex, Walker. 



crucialis, Harvey. 



Head black, smooth, shining ; labrunn and bases of antennae pale 

 yellow; width, 2.6 mm. Body not distinctly enlarged at joint 12, but 

 joint 13 small. Piliferous tubercles very large, shiny brownish, each with 

 a single hair. Body sordid greenish-white, of no decided colour, slightly 

 translucent. A dorsal and subdorsal paler white lines. A broad pale 

 yellow stigmatal line, shaded with orange centrally, continued narrowly 

 and indistinctly on to the anal feet. Spiracles black. 



Last stage. — Head bright shining red-brown ; labrum and bases of an- 

 tennas white ; jaws and ocelli black ; width, 4 mm. Thoracic feet pale 

 jed-brown. Body sordid, subtranslucent white. Dorsal and subdorsal 

 lines narrow, faint, white. Stigmatal line broad, pale yellow, enclosing 

 the black spiracles. Piliferous dots small, black, with somewhat elevated 

 larger bases. Under a glass the body appears mottled with white. 



Food-plants. — Willow (Salix) and wild currant (Ribes). The larvae 

 live singly in houses made of leaves lined with silk, closed except for a 

 hole at one end. 



Found at Yosemite, California. 



ACONTIA ERASTROIDES, Guen. 



Egg. — Conical, flat at base, with 14 longitudinal ribs, the alternate 

 ones slightly projecting at the top, the others not reaching quite so far. 

 Besides these are many transverse ridges, but slightly elevated. Colour 

 uniform green; width, 0.25 mm.; height, 0.35 mm. 



First larval stage. — Geometriform, with only 10 well-developed legs. 

 Green, a transverse band around each segment brownish, somewhat ele- 

 vated. Head, cervical shield and thoracic feet black. 



Larvte from Rhinebeck, New York. 



Catocala cerogama, Guen. 



Ash-gray, with many longitudinal rows of black points. Two black 

 elevations on joint 12. Venter yellowish-green, this colour separated 

 from the dorsal gray by a subventral line of white fringe-like processes. 

 Head gray with black markings ; joint 2 spotted with black. 



Food-plant. — Linden {Tilia atnericana). 



Larva from Ulster Co., New York. 



