124 THE MOSQUITOES OF NEW JERSEY 



low middle consists of six or eight hairs which do not reach tip. Surface 

 sparsely set with moderate spines and numerous small ones arranged 

 in rows. Eyes rather small, sometimes with small posterior portion 

 separated from rest. Hairs of rotary mouth brushes numerous and 

 heavily pectinated, especially centrally. Mentum has from nine to thir- 

 teen teeth on each side of apex, is triangular, with toothed edges only 

 slightly curved. Mandible normal and maxillary palpus oval with mod- 

 erate-sized tuft of long hair at apex, hair patches on its surface as 

 usual and basal joint large with small spines at apex. 



Thorax angulated, one and one-half times as broad as long, lateral 

 angles with tufts of long hairs arising from tubercles and anterior mar- 

 gin with two very small tufts of two or three hairs each. 



Abdominal segments from one to seven subquadrate, with four or five 

 lateral hairs on first and second segments, two hairs each on segments 

 three to six inclusive, and seventh and eighth segments with short tufts 

 only. Lateral combs of eighth segment have from twenty-six to fifty 

 scales, each arranged in a patch without regularity. Lateral spines 

 fringing individual scale long. Anal siphon about three times as long as 

 broad with double row of toothed spines, sixteen to twenty-two in each, 

 eighteen being about average. Teeth small, generally with large one in 

 middle and confined to basal third of spine. Ninth segment only 

 slightly longer than broad, with barred area of ten or twelve tufts of 

 hair on ventral part and two dorsal tufts with one long hair each. Anal 

 gills moderately long, without obvious trachea. 



[According to Howard, Dyar, and Knab (14) the black eggs are 

 fusiform, flattened on one side, the micropylar end more rounded than 

 the other. They are laid on the sides of the cavity just above the water 

 line, singly, or in groups of two and five. They stand in an upright 

 position and are firmly attached. The insect passes the winter in this 

 stage.] 



DESCRIPTION OF THE LARVA 



Larva long and slender, averaging 8 mm. (.32 inch long), specimens 

 sometimes 10 mm. long. Brownish or grayish with head and siphon 

 darker or blackish ; young and half grown larvae grayish white. Head 

 is broader than long, ^^ellowish to dark brown, with scarcely any darker 

 shading. Four small hair tufts of five or six hairs each on anterior part 

 of vertex, two long setae slightly to rear of them ; another small tuft at 

 base of each antenna. Antennae long, almost straight, dark brown, 

 blackish toward base and without spines or hairs over surface. Single 

 long seta arises from scarcely perceptible offset at about middle ; apex 



