144 THE MOSQUITOES OF NEW JERSEY 



fifth joint. In male palpi black, two-thirds length of proboscis, terminal 

 two joints less than half length of basal joint ; a few short hairs toward 

 apex represent fan-like tufts. Female antennae brownish black, short, 

 but with the usual number of joints ; male antennae dark brown, joints 

 ringed with white, plumes grayish brown. 



Dorsum of thorax covered with golden yellow scales, has blackish 

 central stripe which becomes diffused in posterior portion. Pleura dark 

 brown, with small patches of dirty white scales. Legs black, femora yel- 

 lowish underneath, except near apex, extreme apex white. Tibiae and 

 first and second tarsal joints of hind legs white at both base and apex, 

 third and fourth tarsal joints white at base only; last joint wholly ' 

 white. In front and middle tarsi bands much reduced, first being the 

 only one white at both ends, others white at base, becoming more or less 

 obsolete in last two joints. Claws of male anterior and middle tarsal 

 joints unequal in size, larger with median and basal tooth, smaller with 

 single median tooth near base. Posterior claws equal and simple. In fe- 

 male claws equal on all feet, those of anterior and middle tarsal joints 

 one-toothed, posterior simple as in male. 



Abdomen purplish black with whitish bands at base of segments, be- 

 coming broad at sides until wholly white beneath. In female bands very 

 narrow and irregular, sometimes wholly wanting ; in male, broader, well 

 defined and always present. 



HABITS OF THE ADULT 



No observations have been made by any member of the force upon the 

 larva of this species, which will be almost certainly found in such situ- 

 ations as occur along the shores of the Delaware River in Warren 

 County and of some other streams in the rocky section of the state. 



Dr. Harrison G. Dyar, who has published the life history from obser- 

 vations made in New Hampshire and along the banks of the Potomac, 

 says that the adults are very troublesome on and about the river and 

 bite freely. 



DESCRIPTION OF THE LARVA 



When full grown 7-9 mm. (.28-.36 inch) long, of pale grayish white 

 except head, siphon and ninth segment. Head rounded, almost as broad 

 as long, blackish brown, with four rather short hairs arising from sepa- 

 rate points in anterior part of vertex ; small hair tuft composed of four 

 or five hairs at base of each antenna. Antenna rather short, almost as 

 broad at tip as at base, uniformly dark brown and sparsely set with 

 small spines ; apex has one long spine, three smaller ones and usual small 



