THE CANADIAN ENTOMOLOGIST. 



aspect, suffused red and black ; thoracic segments normal ; legs 

 comparatively large ; tarsal joints two, the distal twice as long as the 

 basal, bearing two large claws ; distal end of tibia bearing a semicircle of 

 stout long spines beneath ; femur ochreous beneath ; beak long, 3-jointed, 

 reaching to 4th abdominal segment, black marked with ochreous, abdomen 

 longer than head and thorax combined, broad at base, tapering, 9-jointed, 

 the tergites extending well beneath to the ventrum, and each ending in a 

 leaf-like plate, coloured black and ochreous (two terminal ones black), 

 forming a broad channel along the median line, the bed of wliich is 

 formed by the sternites ; 3rd sternite bearing a peculiar nipple-like red 

 fleshy process, hidden by the overlapping tergites, minute, analogous to 

 that in the locusts (Acrididte) between the bases of the cephalic coxai. 

 Length, full-grown, 6.25 mm. 



After a moult the nymphs are softer and pale, the thorax and head 

 lemon-yellow, the abdomen dark along the mesero-, yellow at the latero- 

 cephalic angles and at tip ; reddish beneath and along the sides. Eyes 

 black, annulate. Legs and beak pale yellow, the latter with a median line 

 of red. The normal colours are acquired in about an hour and a half. 



Pupa (5th stage). — General shape and colour of the preceding stages. 

 Body pale ochreous yellow, mottled on head, thorax and wing-pads with 

 more or less diffuse brown ; tip of abdomen verging to black ; eyes red, 

 with some black ; antennae black, glabrous ; legs concolorous with head 

 and thorax. General colour varies from pale ochreous brown to brownish- 

 black with pale mottled streaks. Underneath ochreous, with red on sides 

 of abdominal segments and black down the median line. Head distinctly 

 striate on ventral and lateral aspect. Wing-pads not large, but easily 

 noticeable ; process between abdominal tergites on ventrum absent. 

 Length 6.25-8 mm. 



Adult. — June I ith to 2ist, adults found and watched continuously, 



June 22nd, found adults crawling slowly about on the branches, 



with a movement similar to that of the nymphs ; found at rest generally 



where the young nymphs locate ; not easily disturbed, and rather 



sluggish, but when touched they jump awkwardly to some distance, 



making a sound similar to that of a steel spring when suddenly loosened ; 



the jump is made with much force. They are easily observed and seem 



to spend their whole time in feeding, remaining quietly in a position similar 

 to that of the young nymphs. When once settled they very seldom move, 

 but remain quiet like a piece of the tree itself; the only evidence of life is 

 given by the forcible ejection of small, colourless, tasteless drops of a 



