238 
Psyche 
Larvae 
[September 
1. Antenna with the tuft at or before the middle 
territans 
Antenna with the tuft well beyond the middle 2 
2. Both upper and lower head hairs multiple 3 
Both upper and lower head hairs not multiple. . . apicalis 
3. Air tube long and slender — 7 x 1, slightly expanded 
before the apex salinarius 
Air tube not over 5x1, uniformly tapering toward the 
apex pipiens 
Table to Species of Aedes 
Adults 
1. Tarsi not white marked 2 
Tarsal joints or some of them white marked 12 
2. Mesonotum with silvery or golden markings 3 
Mesonotum gray, brown, or golden yellow with a 
single median dark longitudinal band, two narrow 
lines, or unmarked 6 
3. Mesonotum with two yellowish or yellowish silvery 
stripes on a dark ground trivittatus 
Mesonotum marked with silver, rarely absent 4 
4. Silver in a broad or narrow line reaching scutellum 
or mesonotum entirely silvered (in the male) .... 5 
Silver on the sides of the mesonotum, the center dark 
triseriatus 
5. Both sexes with a narrow silver stripe atlanticus 
Female with stripe, male mesonotum entirely silvery 
dupreei 
6. Mesonotum with central broad undivided dark band 7 
Mesonotum with divided central band or none 9 
