10. 
a‘ /thorax,-head-.. 
12. 
9 
~ 
_ Antennze with tuft outwardly placed, in a notch, the apical part of antenna 
slender; air tube long, over three times) as' Jong as wide. .- == === 10 
Antenne with the tuft at or before the middle, the apical part not more 
slender; air tube usually shorter than three times its width —-_----- Eee, 
Lateral comb of the eighth segment a patch of spines__- fie AS ee eel 
Lateral comb of the eighth segment a row of bars -------------~--------- 16 
mouth brush 
head hairs. 
I j _antennal tuft 
Wy / _. antenna 
eye 
ce: 
= hair tufts 
at abd.set ee gs 
Sta Ee Za 
Pe jiel e7— DON Wea eee 
| Si eamay ee Gye, SS 2 lateral abdom. 
i Ath» » ! : ee 2 hairs 
c 5th» » ww... subdorsal 
E 6th ae == abd. hairs 
iS 
RB 7thy » 
i _-lateral comb 
! 8th ” ” ; 
era _-air tube 
anal segb---~= 
ene brush’ 
anal gills ~ 
ae 
Fig. 1.—Diagram of a mosquito larva (Oulex salinarius), with names of the parts referred 
to in the key (original). 
haat tufts 
Anal segment with a row of hairs along the ventral line to base; an early 
spring species _---------------------+--------- Culicella dyart Coquillett. 
Anal segment without any tufts in front of the Venoral Hush eaeea==—— LZ 
Air tube with four paired tufts posteriorly outwardly, the subapical one 
moved sideways out of line_-_--------.---------------+--------------- 13 
Air tube with four to ten paired tufts along ‘the posterior line in a straight 
fow, none displaced------.------- ------------------------------------ 15 
