246 ENTOMOLOGICAL NEWS. [June, 'l 1 / 



apically on each segment into black which occupies one-fifth to one- 

 sixth of each segment, narrow, medianly interrupted basal blue rings; 

 7 black, narrow, medianly interrupted basal and subapical pale rings ; 8 

 and 9 bright sky blue; 10 black, more or less pale yellow or bluish near 

 the middle on either side of the median line. In a few very adult 

 specimens 6 is like 7 and the dorsal brown of the preceding segments 

 is much darker than in the larger number of specimens. Seen from 

 the side, i and 2 blue with a narrow brown posterior border; 3 to 6 

 greenish, extreme lower border and over a wider area subapically, 

 bright yellow, more or less obscured and indefinite in most of the 

 dried material; 7 indistinct, apparently blue below the black dorsum; 8 

 and 9 blue; 10 with lower half blue, in some with the inferior apex yel- 

 low. Superior appendages black; inferiors yellow to black. Ventral 

 suture black, paler and duller on the last three or four segments. 



Legs light yellow, femora bluish or greenish tinged in some speci- 

 mens; femora, especially the last 2 pairs, with a more or less distinct 

 narrow dark line on the external angle. 



Wings clear; stigma light brown to brown, encircled inside the en- 

 closing veins with a narrow pale margin, covering one cell or slightly 

 less, the inner side slightly more oblique than the outer, with a brace 

 vein, the anterior and posterior sides longer than the other two sides. 



? . Labrum light yellowish brown ; rhinarium similar or darker or 

 with greenish traces; nasus, frons and genae bright yellowish brown to 

 obscure green. Head above as in the male, averaging paler, no trace 

 of the dark bar on either side of the median ocellus, the pale dilata- 

 tions on either end of the pale occipital crest larger and always dull 

 orange. Rear of head cream-colored. 



Prothorax variable as in the male, but the middle and hind lobes al- 

 ways brown, unmarked. Posterior border of hind lobe winged as in 

 the male, but the middle lobe of the border is lower, apex truncated 

 and sometimes slightly concave. Propleuron cream to light blue. 



Dorsum of thorax similar to the male; sides similar but paler, some- 

 times almost white, in others cream or cream tinged with bluish, and 

 so through intermediate stages to entirely pale blue ; the brown spot 

 on the second lateral suture scarcely evident in some specimens. 



Abdominal segments i to 6 similar to the male, but the apical black 

 is confined to a narrow apical ring; 7 and 8 orange brown, slightly 

 darker along the median line, the darker color obscure, indefinite and 

 narrow; 7 with a narrow interrupted bluish basal ring and a trace of 

 an apical black ring; 9 and 10 light yellow brown, 10 sometimes with 

 bluish traces. Pattern of abdomen often obscure; 7 to 10 often a uni- 

 form dull yellowish brown; in one specimen the dorsum of 6 is light 

 metallic green instead of the usual brown. Seen from the side similar 

 to the male, usually obscure especially the last four or five segments ; 

 in several cases 9 has a large distinct dark area; in other cases 9 and 



