HETARINA. 21 
e. Labrum partly or chiefly yellowish or pale brown; tips of the 
hind wings with no rounded brown spot . 2. cruenta; 3. vulneratata ; 4. ameri- 
cana (to be distinguished by their appendages, see Tab. IJ.) 
ee. Labrum entirely black, with a metallic blue reflection ; tips of 
the hind wings with a rounded brown spot . . . . . - « 5. sempronia. 
dd. Basal spot of front wings red, of hind wings brown, when mature. 
f. Red basal spot of front wings not bordered with brown externally, 
basal spot of hind wings not reaching to nodus. .. . . 6. tricolor. 
ff. Red basal spot of front wings bordered with brown externally, 
basal spot of hind wings reaching to the nodus or beyond . . 7. titia. 
cc, Tips of the front wings clear, of the hind wings with a small rounded 
red spot, when mature . . Loe ee wee we 8. CG. 
bb. Inferior appendages distinctly enlarged at ; tip. 
g. This enlargement subspherical ; a rounded red spot on the tip of each 
hind wing, when adult . . . .- . | ; 2 8 . . . 9 ptlula. 
gg. This enlargement having the form of a racquet ; 3 a rounded brown 
spot on the tips of all the wings, except in the var. sublimbata . . 10. macropus. 
aa. Inferior appendages rudimentary . . . . . . Ll. miniata; 12. capitalis (easily 
separated by the form of their superior appendages, see Tab. II.). 
Females. 
a. Labrum in part, at least, yellow. 
b. Metallic green on either side of the thoracic dorsum (mesepisternum) 
divided into two spots, the anterior contiguous to the mid-dorsal 
carina, the posterior separated from it by buffor brown . . . . . 6. tricolor. 
bb. Metallic green* of each mesepisternum continuous, contiguous to the 
mid-dorsal carina (or nearly so) throughout its entire length. 
c. Metallic green of each mesepisternum not reaching outward to the 
humeral suture . . . . . 8. caja; 2. cruentata (apparently not distinguishable). 
cc. Metallic green of each mesepisternum reaching outward to the humeral 
suture, at least at its posterior (upper) end. 
d. The same metallic green at its anterior (lower) end one-half (or 
less) as wide as the mesepisternum itself. 
e. Dorsal carina of the 10th abdominal segment not terminating 
posteriorly in a spine; pterostigma absent . . . . . . - 38. vulnerata. 
ee. Dorsal carina of the 10th abdominal segment terminating pos- 
teriorly in a spine which projects beyond the apical margin. | 
f. Pterostigma, if present, obscure in colour . . . . . ~ ~ 10. macropus. 
ff. Pterostigma, if present, white and opaque . . '. . 7. young ¢itia (where the 
pterostigma is absent these two species seem indistinguishable). 
dd. The same metallic green almost as wide throughout as the mes- 
episternum. . 
* Note that the metallic green is replaced by coppery-red in some individuals. 
