274 THE CANADIAN ENTOMOLOGIST. 



X-maiks of grayish-black, more solidly filled on thorax. Subdorsal line 

 white, straight, distinct, filled in below with black to a waved, narrow, 

 white, lateral line. Subventer gray shaded. Tubercles black, not raised ; 

 setcC coarse, pale. 



Stage IV. — Head brown, obscurely mottled, a broad, curved, black 

 band on face of lobe and spot on eye ; width i mm. Body flattened, 

 sluggish in habit, setae stiff, curving alternately forwards and backwards ; 

 no shields ; joint i 2 not enlarged. Pale wood-brown, the dorsal smoky 

 lattice-work obscurely cut by faint, pale, broken dorsal line. Subdorsal 

 line concolorous with the ground, narrowly edged with blackish above. 

 Sides black shaded ; stigmatal region broadly pale ; subventer and venter 

 black shaded. Tubercles small, black. Skin granular spinulose. 



Stage V. — Head pale brown, the clypeus and vertex darker ; 

 reticulations and curved band dull black; width 1.8 mm. Body flattened, 

 squarish, densely papillose granular; setce short, thick, broadly clavate ; 

 joints 12 and 13 dorsally folded, elevated. Light brown, brokenly 

 reticulated in black, dorsal diamond - shaped lattice dark brown ; 

 subdorsal line straight, pale, of the ground colour, edged with black, 

 forming triangular, segmentary velvety patches on a gray-black ground 

 laterally. Substigmatal band of ground colour, broad, sharply edged, 

 undulate ; subventer blackish shaded. Feet pale. Tubercles small, 

 black. 



Stage VI. — Head slightly bilobed, rounded, apex in joint 2; wood- 

 brown, mottled with black and reticulate, with curved vertical bands ; 

 width 2.3 mm. Body flattened, thorax depressed, subventral region 

 prominent, joint 12 with distinct folds at tubercle ii. and 13 at tubercle 

 i., rigid, resembling a broken piece of wood. Ground colour yellowish 

 wood-brown, black dotted reticulate, papillose granular. Dorsal pale line 

 edged by small black segmental lines, being the remains of the obsolete 

 dorsal lattice marking. Joint 12 posteriorly shaded with black, behind 

 the folded hump of tubercle ii. Subdorsal line pale, narrow, narrowly 

 edged with black above, below with trigonate black lateral patches and 

 traces of a lateral line; substigmatal band broad, whitish, waved, dotted with 

 blackish. Subventer and venter gray - black, pulverulently shaded. 

 Thoracic feet black-ringed, abdominal ones gray dotted. Tubercles 

 small, black, iv. above the centre of the spiracle. Setre short, stout, 

 broadly swollen at ti]), compressed, dentate, somewhat like scales, pale 

 brown. Spiracles black. 



