T. D. A. COCKERELL. 233 



9 . Similar, except for the usual sexual differences ; clypeus densely 

 granular punctate, not keeled ; flagellum ferruginous beneath ; hair 

 on inner side of hind tarsi very pale yellowish. 



Habitat. — Type from Karachi, N. W. India {E. Comber 

 83 ; male, marked by the collector "'probably new")- British 

 Museum. Females collected by Mr. Comber at Karachi and 

 Malir. In Bingham's table this runs to A^. rustica, which 

 differs in the venation, structure of the abdomen, etc. The 

 lower side of the male hind femora is practically flat, not at 

 all concave. 



The following key separates the Indian species described 

 above, in which the tegulas are not enlarged, and the abdo- 

 men is not partly red, except sometimes the reddish hind 

 margins of the segments. 



Males 1. 



Females (none very small) 6. 



1. Very small (length about 6t mm.), hind legs not noticeably modi- 



fied parcella Ckll. 



Much larger 2. 



2. Hind legs without yellow (a pale tibial lobe in thofacica) 3. 



Hind legs with much bright yellow 5. 



3. No rufous hair on thorax perllieida Ckll. 



Scutellum covered with rufous tomentum 4. 



4. Much larger; wings strongly reddish; postscutellum with white 



hair, contrasting with that of scutellum. ...tlioracicii Smith 

 Much smaller; wings not reddish; hair of postscutellum ochreous. 



iistula Ckll. 



5. Larger; hind femora red and yellow aureohirta Cam. 



Smaller; hind femora black and yellow. 



iiursei seiiiifortis Ckll. 



6. At least the hind tibiae and tarsi clear ferruginous 7. 



Hind tibiaj and tarsi not ferruginous 9. 



7. Sides of face glittering, more densely pubescent than clypeus. 



aureohirta Cam. 

 Clypeus and sides of face with pubescence the same 8. 



8. Mesothorax with large punctures on a shining ground. 



pheuacopsis Ckll. 

 Mesothorax with very small dense punctures antlreiiiua Ckll 



9. Sctutellum shining, with irregular punctures, large and small. 



perhicida Ckll. 



Scutellum finely punctured, or covered with tomentum 10. 



10. Mesothorax and scutellum densely covered with orange-fulvous 

 tomentum ardjuua Ckll. 



TRANS. AM. HNT. SOC, XXXVII. (30) 



