BY WALTER W. PROGGATT. 265 



Imago. — Length 0-0475, antennjie 00125 inch. 



General colour deep yellow, eyes black, apical joints of antennae 

 light brown. Wings semitransparent, slightly clouded with 

 brown, nervures light yellow. Head broad, deeply lobed, with a 

 median suture, and a large fovea on either side; sloping down on 

 sides to eyes, deeply arcuate behind. Face lobes very large, long, 

 rounded at tips, turned down under head. Antennae short; 1st 

 joint broad, short; 2nd longer; 3rd-8th slender, of uniform length; 

 9th-10th forming a rounded club. Eyes very large, standing out 

 on sides of head, somewhat reniform : central ocellus small, hidden 

 from above; lateral ocelli small, very close to hind margin of eyes. 

 Thorax : pronotum narrow; dorsulum slightly rounded in front, 

 convex behind; mesonotum large, arcuate in front, rounded on 

 sides and apex; scutellum small. Legs long, slender, tibial spines 

 on hind legs ver}^ prominent, tarsi small. Wings more than thrice 

 as long as broad; narrow at base, rounded in front to a broadly 

 rounded tip; slightly arcuate on hind margin; primary stalk long, 

 straight; stalk of subcosta long; costal nervure running close to 

 costa, forming a slender cell but no stigma; radius long, curving 

 downward to tip of wing; stalk of cubitus short, upper branch of 

 cubitus curving upward then down, upper and lower forks of 

 about same length, both turning downward; lower branch of 

 cubitus long, upper fork curving round, lower- fork verj^ short, 

 curving inward; clavus short. Abdomen small. Genitalia : {^) 

 very large; lower genital plate short, rounded; forceps very long, 

 straight, slender, lightly fringed with hairs, and curved at tip; 

 upper genital plate ver}' long, thicker, and rounded at tip : (9) 

 short, broad, upper and lower genital plates forming a l:>lunt 

 point. 



Hah. — Mosman Bay, and Sydney, N.S.W. (on Eucalyptus 

 corymhosa; W, W. Froggatt). 



This species, in the structure of the lerp chamber and habits of 

 the larva, is closely related to E. maideni. The lerp scale is like 

 the central part of the former without the scroll-like network 

 ornamenting the sides. 



