Identification Keys 



219 



18. Cells regular hexagons. (Plate vil., Fig. 4, opp. 



page 200.) OcJilcrotatus triseriatus. 



Cells modified hexagons 19 



19. Hexagons with definite straight sides, the lateral 



sides shorter 20 



Hexagons without definite straight sides, lateral 

 side obscure. (Plate VII., Fig. 4, opp. page 

 200.) Ochlerotatus sollicitans. 



20. Egg broadly ovate, not regular, width in length 



two and one-half times. (Plate VII., Fig. I, 



opp. page 200.) OcJilcrotatus impiger. 



Egg roughly ellipsoidal, width in length over 

 three times- (Plate VIII., F g. 5, opp. page 

 202.) OcJilcrotatus canadensis. 



Generic Key for Larvae 



2. 



Breathing tube almost wanting, not tubelike. 

 Palmate tufts on abdominal segments three to 

 seven, sometimes a rudiment on the second. 

 Thoracic tufts reduced to single, long-plumose 

 hairs. 



SUBFAMILY ANOPHELIN^E. 



AnopJielcs. 



Breathing tube well developed, tubelike. Long 

 thoracic tufts present or reduced to stiff spines 

 with spinules. No palmate tufts 2 



SUBFAMILY MEGARHININvE. 



Comb of eighth segment represented by patch 

 of chitin without scales, or absent. Tube 

 without pecten McgarJiinns. 



Comb present. Long thoracic tufts of hairs. No 

 hairs on antennae between bases and tufts. 3 



