1930 ] 
Key to the Mosquitoes of New England 
241 
6 . 
7. 
8 . 
9. 
10 . 
11 . 
12 . 
13. 
14. 
15. 
16. 
17. 
Antennae enlarged basally aurifer 
Antennae not enlarged basally 7 
Antenna as long as head diant xus 
Antenna not as long as head 8 
Lateral abdominal hairs single beyond second 
intrudens 
Lateral abdominal hairs multiple on 1st and 2nd, dou- 
ble 3-5 vexans 
Comb scales in a single row 10 
Comb scales in a triangle 11 
Anal segment ringed by plate implacabalis 
Anal segment not ringed by plate triseriatus 
Anal segment ringed by plate 12 
Anal segment not ringed by plate 15 
Upper and lower head hairs double punctor 
Upper and lower head hairs single 13 
Anal gills at least as long as anal segment... trivattatus 
Anal gills shorter than anal segment 14 
Lateral abdominal hairs double on 3-6 ...... sollicitans 
Lateral abdominal hairs triple 3-5, single on 6 
tseniorhynchus 
Air tube at least 4 times as long as wide fitchii 
Air tube 3 times or less as long as wide 16 
Head hair single 17 
Head hairs double or multiple 19 
Anal gills at least as long as anal segment 18 
Anal gills much shorter than anal segment dorsalis 
