222 FE. F. LAIDLAW. 
. Coloration of the head and thorax similar to that of the male, but the blue colour 
is replaced by a yellowish-brown. The colouring of the first seven segments of the abdomen 
is as in the male, but the blue at the sides of segments 47 is more evident, these 
segments not being so attenuated as they are in the male. Segments 9 and 10 blue; 
9 with a mid-dorsal bronze spot covering its anterior half, 10 with a fine mid-dorsal bronze 
triangle, having its apex directed posteriorly, which occupies about the first third of the 
segment. Appendages black. 
Length of the fore-wing about 18 mm. 
Length of the abdomen 2 about 22°5 mm. 
” ” ” a > 24 mm. 
The first two joints of the antennae are short and stouter than the third, which is 
however as long as the first two together. The upper side of the quadrilateral of the 
fore-wing is about one-third as long as the lower side, on the hinder wing it is about 
two-thirds as long. 
Five specimens (2 , 3 2) from Mahlos and Hulule. This species differs considerably from 
the typical species of Enallagmu in that the lower sector of the triangle rises at the level 
of the basal post-costal cell, and in the colour pattern of the abdomen. It appears to be an 
isolated form. 
