120 Annals of the Carnegie Museum. 



that sclerite, a narrow black stripe on 

 the entire length of the second lateral 

 thoracic suture ; 4 antenodal cells on the 



hind wing tamoyo. 



dd. Antenodal cells on the front wing usually 3 (but some 

 mollis belonging properly under d. fall here). 

 e. Mid-dorsal [thoracic black stripe at least a little 

 wider than either pale antehumeral stripe. 

 Rear of head chiefly black. 



Larger species (abd. 24 mm. or longer, hind 

 wing 18 mm. or longer). 

 Pale dorsal colors of abd. segs. 4-6 reduced 

 to a line or absent. ( Some reclusa fall 

 here although properly belonging under 

 B). 

 Pale dorsal colors of 4-6 more than a line ; 

 black humeral stripe forked in its upper 

 third to two-fifths, lower branch of in- 

 ferior appendages more acute than the 

 upper, the latter not directed at all 



caudad smithiana. 



Smaller species (abd. 22.5 mm. or less, hind 

 wing 15.5 mm. or less) ; abd. segs. 4-7 with 

 the pale mid-dorsal color reduced to a line or 



absent thisma. 



Rear of the head chiefly pale, abd. segs. 1-7 clear 

 blue violet, 3-7 with a terminal black ring, abd. 

 26, hind wing 19-20 mm. (From de Selys' de- 

 scription ) lilacina . 



ee. (not represented). 

 A A (not represented). 

 2. Thoracic dorsum brilliant metallic copper. 



G. Labrum chiefly metallic copper at least in its basal half; apical half, or 

 only its front edge, yellow ; lower branch of the inferior ap- 

 pendages less robust than the upper branch. 

 H. (not represented). 

 HH. Abd. segs. 3-7 black on dorsum, basal half of 3-6 blue, 8-10 



blue on dorsum jocosa. 



HHH. Abd, segs. 3-6 blue on dorsum apical third to sixth black, 7 

 black with a basal blue ring, 8-10 blue on dorsum. 



cupraurea. 

 GG. Labrum yellow or orange throughout ; lower branch of inferior ap- 

 pendages as robust as the upper branch, or more robust. 

 J. (not represented). 



JJ. (modified). Abd. segs. 3-7 black on dorsum with a narrowtrans- 

 verse basal blue ring, 8-10 blue on dorsum orichalcea ?: 



