18 



THE CANADIAN ENTOMOLOGIST. 



of body light translucent green, in some cases inclining to olive. Five 

 longitudinal lines are faintly indicated in shades of the prevailing color. 

 These markings and the green color becoming more pronounced in the 

 course of a day or two. Small black tubercles, each with a single black 

 hair, distributed somewhat irregularly over the body. A dark oval ventral 

 spot on each segment. Duration of this period five days. 



After First Moult. — Length 10 mil. Form much as before, the head 

 perhaps a trifle less prominent. Hairs and tubercles the same, and the 

 anterior pro-legs still undeveloped. Head light straw color, with three or 

 four indistinct wavy brown vertical streaks on each lobe. Immediately 

 after shedding the skin, the body appears of an uniform light straw 

 color, nearly concolorous with the head, with three narrow brownish 



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longitudinal lateral lines on each side. A few hours later, after eating, 

 the dorsum appears darker ; the spaces between the lateral lines light 

 cream color, and the food which has been partaken of shows through in 

 greenish patches in parts of the body. Ventral spots as before. Duration 

 of this period seven days. 



After Second Moult. — Length 20 mil. Diameter 2 mil. Head flat 

 and rather large, of an opaque whitish color, shaded with yellowish. The 

 lobes are marked vertically with irregular black and brown lines, inter- 

 lacing with horizontal lines to form a vein-like design. Top of head 

 marked with black. The body is wrinkled, very slightly constricted at 

 the third segment, is thickest at the ninth, thence diminishing suddenly 

 posteriorly. A dorsal excresence indicated on the ninth segment. Color 

 a uniform greenish cream, with a faint rosy tint at the junctures of the 

 segments, and thickly sprinkled with brownish atoms. Piliferous spots 



