Report on Mosquitoes Collected in St, Louis County During 1942 
31 
Table 1 
Relative Numerical Importance of Mosquitoes of 
St. Louis County 
1942 
Species 
Adults 
Culex pipiens L 1,950 
Aedes vexans (Meig.) 2,783 
Anopheles quadrimaculatus Say 1,846 
Anopheles punctipennis (Say) 857 
Culex restuans Theob ^^^ 
Culex erraticus D. & K 
462 
280 
36 
Culex salinarius, Coq 
Culex apicalis, Adams 
Aedes sticticus (Meig.) 126 
Uranotaenia sapphirina (O.-S.) 72 
Aedes triseriatus (Say) 55 
Culex quinquefasciatus Say 29 
Psorophora horrida (D, & K.)- - ^^ 
Psorophora ciliata (F.) 29 
Aedes nigromaculis (Lud.) 36 
Aedes trivittatus (Coq.) 23 
1 
Psorophora ferox (Humb.)-- 
Psorophora confinnis (L.-A.) 
Anopheles crucians Wied 
Aedes dorsalis (Meig.) 
Culex tarsalis Coq.. 
10 
13 
8 
7 
Orthopodomyla alba Baker 2 
Anopheles barberi Coq 4 
Theobaldia inornata (Will.)- 2 
Aedes aegypti (L.) - ^ 
Psorophora cyanescens (Coq.) 
Aedes dupreei (Coq.) 
Megarhinus septentrionalis D. & K— 
Psorophora howardii (Coq.) 
Psorophora discolor (Coq.) 
Larvae 
2,643 
739 
461 
751 
840 
240 
93 
131 
5 
13 
28 
8 
2 
14 
5 
3 
Total Per cent 
4,593 
3,522 
2,307 
1,608 
1,275 
702 
373 
167 
126 
77 
68 
57 
53 
37 
36 
25 
15 
15 
13 
30.2 
23.3 
15.3 
10.6 
8.4 
4.6 
2.5 
1.1 
0.8 
0.5 
0.5 
0.5 
0.4 
0.2 
0.2 
0.2 
0.1 
0.1 
0.1 
4 i 
8 remaining 
11 species 
7 0.2 
5 
4 
2 
2 
9,126 
5,976 
15,102 
99.7 
