THE CANADIAN ENTOMOLOGIST 177 



fourth postcubital or between the fourth and fifth; the hind-wing 

 between the third and fourth, generally near the fourth; pterc- 

 stigma covering less than one cell, dark sooty brown with a narrow 

 pale margin. 



Appendages — Superior appendages bifid, the upper part short, 

 stout, piceous, separated by a constriction from the lower part, 

 which is somewhat longer and in profile more slender, terminating 

 in a pale tubercle. In dorsal view the upper part has the form 

 of a stout incurved hook, the pale tubercle is continued along the 

 mesial surface nearly to the base and has a slightly concave inner 

 edge bearing a minute sub-basal tubercle. Beneath it the ap- 

 pendage is produced into a slender recurved and incurved hook- 

 like process. 



Inferior appendages consisting of an outer piceous and an 

 inner pale portion. The piceous part consists of a broad sub- 

 triangular base and a slender apical process directed somewhat 

 upwards, incurved at the tip, and projecting beyond the pale 

 portion, which appears beneath it in profile view, and is mesially 

 concave. 



Female — The pale markings of one of the females are blue, 

 of the other salmon-coloured. The former was taken in coitii 

 with the single male from the same locality. The colours of the 

 other female had apparently not quite matured and are evidently- 

 faded. 



The markings of the head and thorax are similar to those of 

 the male with the following slight differences: Postocular spots 

 somewhat larger and rounder, transverse occipital line somewhat 

 broader, pale lateral spots of prothorax slightly larger, tending 

 to merge together; long portion of antehumeral bands straight 

 and not widened in front. In the specimen taken irt coihi the 

 anterior pale area on the sides of the thorax is divided into two 

 by an extension of the black line which arises at base of front 

 wing. (PI. V, fig. 4.) 



The abdomen is marked as follows: — 



Segment 1 — Similar to the male, but with transverse dorsal 

 black spot occupying anterior half of segment, lateral spot divided. 



