Figs. 1—8. 
. Stegomyta sugens. 
. Culex (atypical). 
. Melanoconion, n. sp. 
. Tentorhynchus tenax. 
. Culex concolor. 
. Mucidus scataphagotdes. 
. Culex (atypical). 
Figs. 9—11. 
Q. 
10. 
ae, 
5 WS 
aye 
1 kg 
elise 
5. 10 
Wuge 
Palos 
A Op 
4 PAY 
BO 
5 BE, 
bezQe 
aZAk 
» Be 
ont antw dN 
PLATE Iil. 
Mental plates of larva. 
Clypeal hairs. 
Clypeal hairs of Stegomyta sugens. 
a ss fasctata. 
* op a scutellaris. |?) 
Head of Toxorhynchites speciosus (after Theobald), 
Head of Culex concolor. 
Mouth parts of /. scataphagoides showing concave clypeus, modified 
brushes, mandibles, and small maxilla. 
Mouth parts of Culex concolor. 
Eighth and ninth abdominal segments of W/. scataphageoides. 
of Fy af 3 Culex tigripes. 
35 a & * Culex concolor, 
A ss 5 i Toxorhynchttes (after Theobald). 
Position at rest of Culex fattgans, larva. 
0 55 Teniorhynchus tenax, larva. 
“3 5 Stegomyta. 
Position in progression of larva with enormous siphon tube, 
a at rest 5 . oF aks 
) : Culex concolor, larva. 
