168 THE MOSQUITOES OF NEW JERSEY 



cylindrical, short, very slightly tapered, smooth, a single hair at mid- 

 dle ; three long, equal, smooth, articulated terminal processes. Eyes in- 

 conspicuous. Mental plate small, with a median tooth and five on each 

 side, perpendicular and rounded, the first small, the rest subequal and 

 rather regularly spaced. Mandible elongate quadrangular, slightly con- 

 vex without ; a minute serration on dorsal aspect ; two pairs of flat ap- 

 pendages near tip, basal pair ciliate, distal pair bent and with long 

 brush-shaped tips, a pair similar but with smaller appendages just be- 

 fore collar ; an outer row of cilia ; terminal dentition of seven very large 

 teeth, the third produced, fourth to seventh progressively shorter; a 

 square process of fine dentition, four small retracted teeth within ; two 

 filaments above, two within ; a quadrate process at end of dentition, a 

 slender one at base ; a row of setae outwardly, the inner ones longest. 

 Maxilla rounded rectangular, palpus attached perpendicularly by a 

 pseudo-articulation ; numerous hairs and divided filaments on inner as- 

 pect ; palpus angled at base, short, not longer than the maxilla, a row 

 of short spines on inner aspect, four terminal digits and two small hair 

 tufts. Thorax rounded quadrate, about as long as wide; hairs short, 

 consisting of feathered hairs and a few short simple ones, mesothorax 

 sparsely haired. Abdomen moderate, anterior segments short; long, 

 feathered lateral hairs, double on first two segments, single on third to 

 sixth ; a dorsal series of four pairs of fan-shaped tufts on third to sixth 

 segments. Air-tube sessile, subquadrate, roundedly angled posteriorly. 

 Lateral plates of eighth segment posteriorly with a series of long spines 

 without any shorter ones between. Anal segment about as long as wide, 

 with a dorsal plate finely spined behind ; dorsal brush of two tufts on 

 each side; ventral brush well developed, of long branched tufts. Anal 

 gills moderate, about as long as the segment, slightly tapered, blunt 

 pointed. 



"Egg. Short fusiform, strongly tapered toward both ends, black, the 

 surface finely granulate ; float consisting of a thin membrane which en- 

 tirely covers the dorsal surface (in normal position of egg upon water) 

 and projects as a narrow rim along the entire margin, this rim very 

 narrow and crenulate at the ends, broader at the sides, and with a series 

 of numerous impressed transverse lines. 



"The eggs were obtained from captured females ; they are laid sepa- 

 rately upon the surface of the water. The larvae are found only in water 

 in tree holes, in company with larvae of Aedes triseriatus and Ortho- 

 podomyia signifera and also with Megarhinus septentrionalis. The 

 larvae probably feed normally upon small organisms, but have been ob- 



