350 ENTOMOLOGICAL NEWS. [Oct., 'l6 



pimeron and metepisternum, where not black, orange or yellowish 

 brown, duller below. Metepimeron pale bluish in a broad band parallel 

 and adjacent to the second lateral suture, the posterior triangular area 

 and above adjoining the wing bases to a variable extent, pigmented 

 yellow. Beneath pale, yellowish- or greenish-tinged. 



Abdomen black above; i with black on either side with two shal- 

 low rounded indentations in the apical half and with the extreme 

 border black to the ventral edge; 2 with a single, similar, but deeper 

 and more conspicuous, subapical indentation in the black which, just 

 basal to this indentation, is wider and rounded; sides of these two 

 segments green or greenish ; 3-7 with narrow, interrupted basal rings, 

 green on 3 and usually distinctly green or yellowish on 4 and 5, but 

 often obscure, blue or bluish on 6 and 7 and usually not discernible 

 in dried material; apical dorsal fourth to more than one half (usually 

 about one-half) of 7 blue (thus differing strikingly from the descrip- 

 tions of de Selys and Calvert, where 7 is described as black), this 

 blue area wide for its entire length but narrower basally, widening 

 apically, but not reaching the ventral edge, which is black ; apical in- 

 tegument of 7-9, seen from the side, with a shining black spot below 

 midheight; 8 otherwise blue, the extreme lower edge dull pale yel- 

 lowish brown or with the lower edge with some traces of black which. 

 in extreme cases, fuse to form an inferior longitudinal stripe, most 

 developed posteriorly and fusing with the apical black spot in the -in- 

 tegument, very rarely extending the full length of the segment ; 9 

 similar to 8 ; 10 black, beneath reddish or yellowish brown. Superior 

 appendages black, apically and posteriorly brown; inferiors dark 

 brown or black, very restricted yellowish brown at base as seen in 

 lateral view. 



Legs dark, pale colors yellowish or greenish brown ; both anterior 

 and posterior faces of superior surface of femora black except at ex- 

 treme base, more or less running out into spots basally, especially on 

 last femora ; anterior superior face of first tibiae black, other tibiae 

 with minute lines or spots or unmarked ; tarsi black, more or less pale 

 at base of joints; tarsal claws amber, black-tipped, toothed like 

 "gracilc." 



Wings very slightly tinged to yellowish brown-tinged, stigma dull 

 red or reddish brown (same shade but slightly darker than in adus- 

 tum.) 



This species has been determined independently by Dr. Cal- 

 vert and myself as aplcale. Because of some differences from 

 earlier material described by de Selys and by Calvert, I have 

 thought it advisable to give the above description of the Hrit- 

 ish Guiana specimens. 



