INSECUTOR INSCITL^ MRNSTRUUS 185 



Palpi of female as long as proboscis ; thorax elongate ; legs 

 long ; body generally hairy 26 



2. Postnotum with a little tuft of setae IVyeomyia ntus Dyar 



Postnotum bare 3 



3. Proboscis very long, as long as thorax and abdomen, 



Rachionotomyia monetifera Dyar 

 Proboscis moderate 4 



4. Wing cells with moderate or short stems 5 



Wing cells with very long stems 23 



5. Abdomen of female blunt at the tip 6 



Abdomen of female more or less distinctly pointed 18 



6. A small dark species with metallic silver head spot and dark 



mesonotum Hodgesia ampyx Dyar 



Larger ; head not silvery except as concolorous with mesonotum 7 



7. Wing-scales narrow S 



Wing-scales broad 17 



8. Large ; dark brown ; posterior abdominal segments stained with 



luteous Culex concolor Robineau-Desvoidy 



Not so colored 9 



9. Mesonotum white-marked 10 



Mesonotum not white-marked 11 



10. Mesonotum white on anterior two-thirds. .Cm/^*- gelidus Theobald 

 Mesonotum white, enclosing four brown marks, 



Culex whitmorei Giles 



11. Abdomen with basal segmental white bands 12 



Abdomen without regular bands 13 



12. Proboscis and legs white-marked Culex sitiens Wiedemann 



Proboscis and legs unmarked Culex quinguefasciatus Say 



13. Large, with partial dorsal banding or lateral spots 14 



Small, without any dorsal banding 15 



14. Mesonotum brown, abdomen with one dorsal white band on 



second segment .- Culex hensemaeon Dyar 



Mesonotum yellow ; abdomen with small yellowish lateral 

 spots Mansonia diaeretus Dyar 



15. Proboscis with whitish ring Culex summorosus Dyar 



Proboscis without whitish ring 16 



16. Male hypopygium with large toothed mesosome, 



Culex inelegans Dyar 

 Male hypopygium with conical mesosome connected by a bridge, 



Culex fidelis Dyar 



17. Mesonotum with six bluish silvery spots, 



Mansonia annulifera Theobald 

 Mesonotum with two silvery lines. . . .Mansonia unifortnis Theobald 



18. Wings spotted with white 19 



Wings not spotted with white 20 



