THE CANADIAN ENTOMOLOGIST 237 



that of the larva of Allograpta obliqua as shown by Mctcalf (1)*, except that 

 the anterior interspiracular spine beside the circular plate is much less prominent 

 in A.fracta than in A. obliqua. 



The larva pupates commonly on the plant surface, generally close by the 

 place where it last fed. On blades of barley and corn the pupa? were almost 

 always oriented parallel to the long axis of the blade. 



The puparium is green; the two whitish larval stripes apparent for a day 

 or two; as the true pupa inside takes on the black and yellow colour of the adult 

 tly the colour of the puparium changes until all the green van'shes. The anterior 

 face is bulbous, the outline of the dorsum convex, curving downward to the 

 base of the posterior respiratory tubes, not concave anterad of the tubes, the 

 \enter is gently concave, sides narrowing posterad. Armature consists in the 

 I)alc inconspicuous bristles of the larval integment. Length of puparium 5 

 to (5.0 mm., maximum breadth 2 to 2.3 mm., height 1.7 to 2.1 mm. (7 indi- 

 \iduals). 



Adult Female. 



Oval. Vertex shining black, continued as a broad stripe to base of antenna?, 

 thence as a narrow stripe to, or almost to, mouth cavity, face narrow, pale 

 yellow or white, the light colour coming up on the sides almost to the ocelli, 

 cheeks pale yellow, in front below the eyes a small brownish spot; pile of face 

 short, pale yellow; pile of frons chiefly light-coloured, but some examples have 

 considerable black pile in the middle; profile of face below antennae gently con- 

 cave to the base of tubercle; occipital pile silvery, above fulvous. Antennae 

 reddish yellow; third segment blackish or grayish along the upper edge, oval in 

 shape, but little longer than wide in middle; arista brown, lighter basally. 



Thorax shining metallic green, with short fulvous pile; a pale, yellow lateral 

 stripe from humerus to suture, three yellow spots on the pleurae; scutellum 

 yellow, the extreme anterior corners black, pile light yellow except for a few 

 black hairs on the disc. Wings hyaline, stigma brownish yellow. Legs yellow, 

 posterior femora with a brown ring near apex, posterior tibiae with brown rings 

 at basal third and before the apex, hind tarsi reddish brown, last three joints 

 brown; pile light-coloured. 



Abdomen narrow, oval; first segment metallic black, anterior and lateral 

 margins pale yellow, sometimes almost half the dorsal surface of the segment 

 is yellow; remaining segments with shining black cress- bands, one on anterior, 

 one on posterior margin, the central black part opaque; second segment with a 

 slightly arched yellow cross-band, reaching the sides for its full width, about 

 one-third as wide as the segment, constricted and sometimes interrupted in 

 the centre, in some individuals continued up the sides to the anterior angles of 

 the segment; third segment with a similar cross-band, wider and more con- 

 spicuously arched, not constricted, between one -third and one- half as wide as 

 the segment; fourth and fifth segments with two median longitudinal, narrow, 

 yellow stripes, and with two obliquely placed yellow spots, the latter on the 

 fourth segment rarely coming in contact with the central stripes and reaching 

 the lateral margins in their full width about apical fourth of the segment. Pile 

 of abdomen short, except on the sides cf the two basal segments; colour light 

 yellow, on the dis c black and yellow mixed. 



♦Figures in parenthesis refer to Literature Cited. 



