12 A .Monograph of Culicidae. 



3. Clasp transparent, membranous 4 



Clasp chitinous, solid 5 



4. Clasp inflated, lobed, irregular, apparently erectile Wyeomyia 

 Clasp broad, simple, with minute apical spine ... Uranotaenia 



5. Clasp enlarged, clawed, hirsute on outer aspect... Deinocerites 

 Clasp slender, bifurcate, arising sub-apically Aedes 



6. Harpes filamentous, or papillose, slender, delicate 7 

 Harpes non-filamentous, chitinous or spined 11 



7. Harpes filamentous; unci reduced or invisible ... 8 

 Harpes papillose-capitate ; unci an undivided 



basal cone Janthinosoma 



8. Harpes broadened at the base, not jointed ; outer 



lobe of side-piece finger-shaped Protoculex 



Harpes not broad at base, jointed centrally 9 



9. Side-piece with a heavy terminal brush ; harpes 



hooked Pseudoculex. n. g. 



Side-pieces without terminal brush 10 



10. Harpes hooked by a slender retrose spine Culiselsa 



Harpes not hooked * Grdbhamia 



11. Clasp with an outward angle and spines ; harpes 



touching to form a ring-shaped structure Psorophora 



Without these characters ; clasp simple 12 



12. Terminal clasp expanded, narrow, bladder-like ... 13 



13. Basal lobe of side-piece setose *Feltidia. n. g. 



Basal lobe of side-piece a thick chitinous rod Coquillettidia. n. g. 



14. Side-piece with a sub-apical process within bearing- 



setae and filamentous or leaf -like appendages. . . 20 



Side-piece without such a process 15 



15. Clasp with the articulated tip sub-terminal Ecculex 



Clasp with the articulated tip terminal 16 



16. Side-pieces short, conical; harpes with long 



branch at base Stegomyia 



Side-pieces long, conical ; harpes not so branched 17 



17. Harpes with trifid apex ; tip of clasp multiple 



divided Pneumaculex. n. g. 



Harpes with simple or spinose apex 18 



18 . Appendicular tip of clasp long Megarhinus 



Appendicular tip of clasp minute 19 



19. Unci not forming a central projecting sac Theobaldinella 



Unci united into a large central projecting sac ... Culicella 



20. Harpes nearly simple, dentate only 21 



Harpes heavily spined, often recurved Culex 



21. Leaf-like scale of apical lobe of side-piece absent Neocirfex. n. g. 

 Leaf-like scale present, setae arising from a second 



basal lobe Mclanoconion 



* This, of course, is an error. The type of the genus Grdbhamia I 

 made jamaicensis— not dorsalis, Meigen. Feltidia was founded for 

 jamaicensis — i.e., it is the genus Grabhamia. 





