222 



MEDICAL ENTOMOLOGY 



(a) Thorax and abdomen with hair-like curved scales. 

 a No flat scales on head, but upright forked ones. 



ft Basal lobe of male genitalia of one segment. 



1. Wing scales rather large, lanceolate . 



2. Wing scales mostly small, narrow or slightly 



lanceolate ; wings prominently spotted along 

 costa . . . . . 



3. Similar but fourth long vein very near base of 



third ; outstanding scales on prothoracic lobes. 



4. Wings with patches of large inflated scales 



(3/3 Basal lobe of male genitalia of two segments. 



5. Prothoracic lobes with dense outstanding scales. 

 Median area of head with some flat scales ; abdomen 



hairy ; prothoracic lobes mammilated. 



6. Wing scales lanceolate 



(b) Thorax with distinct narrow-curved scales ; abdomen 



hairy. 



7. Wing scales small, lanceolate ; head with nor- 



mal forked scales 



8. Wing scales broad and lanceolate; head with 



broad scales, not closely appressed but not 

 forked or fimbriated 



(c) Thorax with hair-like curved scales, and some narrow 



curved ones in front ; abdomen with apical lateral 

 scale tufts and scaly venter ; no ventral tuft. 



9. Wing scales lanceolate . . . . 



(d) Thorax with hair-like curved scales ; no lateral abdom- 



inal tufts ; distinct apical ventral tuft. Palpi of female 

 densely scaly. 



10. Wings with dense large lanceolate scales 



(c) Thorax with hair-like curved scales and some narrow- 

 curved lateral ones ; abdomen hairy with dense long 

 hair-like lateral apical scaly tufts. 



11. Wing scales short, lanceolate and dense ; fork- 



cells rather short 



(/) Thorax with very long hair-like curved scales ; abdo- 

 men pilose except last two segments, which are scaly ; 

 dense scale tufts on hind femora. 



12. Wings with broadish, blunt lanceolate scales . 

 (g) Thorax and abdomen with scales. 



13. Thoracic scales narrow-curved to spindle 



shaped ; abdominal scales as lateral tufts 

 and small dorsal patches of flat scales . 



14. Abdomen nearly completely scaly with long 



irregular scales and with lateral scale tufts . 



15. Similar to Cellia but no lateral scale tufts 



16. Abdomen completely scaled with large flat 



scales as in Culex . 



17. Thoracic scales hair-like except a few narrow- 



curved ones in front; abdominal scales to'ng, 

 broad and irregular . .. .... 



Anopheles. 



Myzomyia. 



Neomyzomyia. 

 Cyclolepidop- 



teron. 



Feltinella. 



Stethomyia. 



Pyretophorus. 

 Myzorhynchella. 



Arribalzagia. 

 Myzorhynchus! 



Christya. 

 Lophoscelomyia . 



Nyssorhynchus. 



Cellia. 

 Neocellia. 



Aldrichinella(AI- 

 drichia). 



Kerteszia. 



