68 ENTOMOLOG.CAL NEWS. [Feb., '13 



B, in which the feet are uniform in color, not in any way marked or 

 banded. 



I. The thorax is marked in some way, with stripes or spots, or 

 the sides are white or golden brown. 



a. Species with longitudinal white or blue stripes. 



1. There are two white longitudinal stripes ; the speries 



is of moderate size and blackish, 



Aedes trivittatus Coq. 



2. There is a well-defined broad central white band, 



and the top of the head is also white ; else as be- 

 fore Aedes serratus Theob. 



3. There is a diffuse .nte central stripe, not defined 



as before; a very small blackish species, 



Aedes dupreei Coq. 



4. There is a central metallic blue stripe; also blue 



spots. A small dark brown species, 



Uranotaenia sapphirina Arrib. 



b. Species in which the thorax is yellowish, white or brown, 



leaving a blackish central stripe or two, usually not 

 sharply defined ; all of moderate size. 



1. The thorax is yellowish; brownish abdomen with 



narrow white bands Aedes pretans Gross. 



2. The thorax is golden yellow. Abdomen almost black, 



with broad white h^nAs. .. .Aedes abserratus Felt 



3. The thorax is very dark brown with pale yellowish 



scales at sides ; abdomen with dirty white bands, 



Aedes iucoHSpicuus Gross. 



4. The thorax is dark brown, with two pale yellowish 



spots on centre. Abdomen dark brown with white 

 bands Culex saxatilis Gross. 



5. The thorax is brown ; abdomen not banded, with a 



metallic silvery gray luster; legs cream-colored, 



Aedes pallidohirta Gross. 



6. The thorax is golden brown ; the abdomen not band- 



ed ; legs black Aedes aurifer Coq. 



7. The thorax is silvery white at the sides, not ex- 



tending much on the upper surface, most of which 

 is black ; abdomen not banded. 



Aedes triscriatus Say 

 c. Species in which thorax is white-dotted only. 



I. There are two small white dots on each side of the 

 middle and a U-shaped white mark at base; the 

 abdomen is banded Culex rcstuans Theob. 



