THE CANADIAN ENTOMOLOGIST. 299 



black spots on all except the thoracic segments and segments eight and 

 nine. 



Catocala piatrix, Grt. 



Larva taken on walnut, July 9, 1901. Length, two and seven- 

 tenths inches. Colour pale gray, head the same, face dusky, bounded by 

 a black stripe which passes over the summit and down each side to the 

 mouth, the sides of head behind this stripe being pale gray. A rather 

 broad, brown, continuous dorsal stripe. Cervical shield dark like the 

 face, anal plate greenish. Brown stripes enclosing the dorsal tubercles 

 are darkest on posterior part of each segment, where they are marked with 

 short diagonal gray lines. Lateral stripes faint. Stigmatal stripes dark 

 brown and distinct, fading on central segments. No filaments. Tubercles 

 all very small and white, legs greenish. 



Venter white, with a black spot on each segment except that bearing 

 last pair of abdominal legs. 



Catocala neogama, S. and A. 



Described June 2nd. Food-plant, walnut. Head wide as thoracic 

 segments, gray, as is also segment one ; head with many dark brown 

 markings ; jaws black and a black patch at each side of the mouth. 



Tubercles whitish, those on eleven quite large, ridge of eight slight. 

 Dorsal median stripe very irregular; on the thoracic and anal segments its 

 sides are nearly straight and closely approximate, on the central segments 

 it alternately widens and contracts, forming a series of dumb-bell-like 

 figures. 



The subdorsal stripes are of the general colour, which is wood- 

 brown, except on segment four, where they are black, and also on 

 segment eight, where they form part of the transverse black band, which 

 latter is divided by the dorsal stripe. 



The stigmata are black and like in the dark brown stigmatal stripe, 

 which is connected with the subdorsal stripes by # dark diagonal lines on 

 each of the central segments. 



Filaments simple, not numerous. Legs pale, spotted with black and 

 white. Venter strongly tinged with red and with black spots, except 

 between thoracic and last two pairs of abdominal legs, where the spots 

 are brownish red or, in some cases, obsolete. 



Neogama larvae vary in depth of colour, but the markings are quite 

 constant, so far as observed, and we have bred many of them. 



Piatrix larva may be recognized from its earliest stage, showing the 



