20 N. J. Agricultural Expkriment Station, Bulletin 348 



This species is held by H. D. & K. to be an abberation of 



Culcx saxatilis Gross, (p. 153) 



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

 silvery gray luster ; legs cream-colored 



Acdcs pallidohirfa Gross, (p. 150) 



This species is held by H. D. & K. to be an abberation of 



Acdcs fuscus O. S. (p. 151) 



6. The thora.x is golden brown ; the abdomen not banded ; legs 

 black Aedes aurifer Coq. (p. 14^) 



7. The thorax is silvery wliite at the sides, not extending much on 

 the upper surface, most of which is black. Abdomen not banded. 



Aedes triseriatiis Say. (p. 137) 



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



I. There are 2 small white dots on each side of the middle and a 

 U-shaped white mark at the base ; the abdomen is banded. 



Acdcs resfuams Theob. (p. 87) 



d. Species in which the entire under surface is silvery white or yel- 

 lowish. 



I. A small form having dorsal surface black; stripes on thorax 



irregular Wyeomyia smithii Coq. (p. 159) 



II. The thorax is without marks or ornamentation. 



a. The segments of the abdomen are narrowly banded at their bases. 



1. A small dark brown species; abdominal bands wider in the middle 

 than at its sides except on the seventh segment, which usually has 

 a narrow band, broad at sides Aedes fuscus O. S. (p. 151) 



2. A moderate-sized brownish species, with the bands of the ab- 

 domen of moderate width Culcx pipiens Linn. (p. 82) 



3. A somewhat darker, longer-legged species, with very narrow 

 regular abdominal bands Culcx salinarius Coq. (p. 41) 



b. The segments of the abdomen are narrowly banded at their apices 

 only. 



I. A small, slight, blackish species. . .Cm/^.i* territans Wlk. (p. 153) 



c. The abdomen has no bands or only the merest indication of them. 



1. A uniformly dark brown species of moderate size 



Culcx mclanurus Coq. (p. 155) 



2. Species having thorax yellowish brown, somewhat polished, with 

 a thin bluish gray frosting hwphclcs bnrhcri Coq. (p. 119) 



Table to Determine Mosquito Larvae 



Antennae arising from the sides of the head ; antennae not pendant i 



1. No siphon or breathing tube on eighth abdominal segment. .A)iophclcs 2 

 A siphon or breathing tube on eighth abdominal segment 3 



2. Antennae yellowish ; tracheal gills moderate in size 



A. punctipcnnis, (p. 96). A. quadrimacidatiis. (p. 100) 



Antennae shorter, brownish ; tracheal gills short 



A. crucians. ( p. 95) 



3. Hair tufts on thorax and abdomen simple, sparse or absent. . ; 4 



Thorax and abdomen with star-shaped or stellate hair tufts 



Uranotacnia sapphirna. (.p- i55) 



