282 AUSTRALIAN PSYLLID^^i:, 



angular tip; primary stalk long; stalk of subcosta medium, costal 

 cell wanting ; radius short, turning upward, upper branch of 

 cubitus long, upper fork short, running out above tip of wing; 

 lower fork shortest, turning downward; lower branch of cubitus 

 transverse ; upper fork short, arched ; lower fork very short, 

 curving in at apex. Abdomen short. [Genitalia damaged.] 



Ilab. — Botany, near Sydney, N.S.W. (on Banksia serrata; W. 

 W. Froggatt). 



This is a very rare species which does not form galls. The 

 larv^ cling close to the undersurface of the leaves of the food- 

 plant which they very closely resemble in colour, but produce no 

 gall or blister. The perfect insect when at rest has the body and 

 wings pointed upward as if it were standing on its head. 



TrIOZA EUGENI.E, n.sp. 



(Plates XV., fig. 10; xvi., fig. 15.) 



Larva varying from pale to dark yellow, eyes pink. General 

 form oval; dorsal surface flattened, shield-shaped, outer margin 

 with a rim of lace-like fringe quite different from the encircling 

 ciliated spines in other species of this genus; ventral surface 

 convex, margined with a fleshy flange. Antennje 8-jointed, broad 

 at base, coming to a point at tip, reaching edge of marginal 

 flange. Legs short, stout. Abdomen much corrugated. 



Pupa varying in colour from dark yellow to brown. More 

 circular in form than the larva; head showing a rounded base and 

 apex through dorsal shield; eyes large; antennae extending beyond 

 edge of shield; wing-covers slightly swollen on sides, overlapping 

 the basal segment of abdomen; a broad transverse suture between 

 thorax and abdomen. 



Imago. — Length 0'0675, antennae 001 inch. 



Colour very variable, in freshly emerged specimens from dull 

 yellow to ochreous; eyes reddish-brown, last two apical joints of 

 antenna black; thorax marbled with yellow lines; wings hyaline, 

 nervures light brown. The whole insect clothed with fine hairs, 

 thickest and longest on front of head, back and abdomen. Head 



