AEDES SYLVESTRIS 695 



Abdomen steely-black, covered with dusky deep purplish-black scales, the base of 

 each segment with a band of pure white scales bent in at the middle, the last two seg- 

 ments with apical white bands, the penultimate one with apical and basal, the 

 apical expanded in the middle; first segment deep ochraceous, with light and dark 

 scales and three patches of pale hairs; posterior borders of the segments with short 

 pale golden hairs; venter with broad basal white hands and narrow apical lateral 

 ones, middle of the venter mostly white scaled. 



Legs with the coxae pale ochraceous; femora white beneath and at the base, dark 

 brown above towards the apex, knee spot pale yellowish; tibiae dark brown above, 

 pale ochraceous beneath ; metatarsi and tarsi black above, pale beneath, with narrow 

 pale basal bands on all the joints in the hind legs, but not on the last two tarsi on the 

 fore and mid legs; ungues of the fore and mid legs equal, each with a single tooth, 

 those of the mid legs straighter than those of the fore, hind ones equal and simple. 



Wings with brown scales, the lateral ones long and thin; first sub-marginal cell 

 longer and a little narrower than the second posterior cell, about two and a half 

 times the length of its stem, which is shorter than the stem of the second posterior 

 cell, base of the first sub-marginal cell nearer the base of the wing than that of the 

 second posterior cell, stem of the latter about two-thirds the length of the cell; pos- 

 terior cross-vein about its own length distant from the mid cross-vein. 



Halteres with pale stem and fuscous knob. 



Length. 4.5 to 5 mm. 



^. Head dark brown, with pale golden curved scales over the crown, black upright 

 forked ones behind, with flat white scales at the sides; eyes black and silvery; 

 antennae banded, brown and dusky white, plumes silky brown; proboscis covered 

 with black scales; palpi black scaled, the base of the third joint with a broad white 

 band, its apex dilated, fourth also dilated, its base with a narrow ring of white 

 scales, hair-tufts deep brown. Abdomen banded much as in the $, but much nar- 

 rower, and the bands more contracted in the middle, so that it looks almost like two 

 lateral spots, densely hairy, hairs pale golden; (^ genitalia almost black. Ungues of 

 the fore and mid legs unequal, the larger with a distinct tooth, and the smaller also 

 with one at the base, hind ungues equal and simple. 



Length. 4.5 mm. 



Hafttfa^. Ontario, Canada (E. M. Walker) (66) ; Manitoba (W. I. Spencer) (19, 1, 

 1900). 



Time of capture. July and September. 



Ohservations. A very distinct species, easily told by the abdominal banding and 

 the head ornamentation from any other mosquito I have seen. It is apparently a 

 wood species. The specimens bear the following notes on the labels: "Rondeau 

 Provincial Park, Kent Co., Ontario, from the interior of a sandy wood of white pine 

 with a few hard woods"; "From grass and low herbs in a wood of sugar, maple, 

 aspen, balsam and fir"; "From the interior of a wood of walnut, maple, hickory, 

 oak, and many other hard woods." Another: "Taken at night in oak grove near 

 Lake Simcoe." A single $ also received from Stony Mountain, Manitoba, has a small 

 apical patch of white scales on the fourth segment. 



Description of Female, Male, Larva, Pupa, and Egg of AiioES sylvestbis : 



Female. Proboscis moderate, subcylindrical, the labellse conically tapered; 

 vestiture black with pale yellowish scales intermixed along the middle beneath ; 

 setae minute, curved, black, those on the labellae more prominently outstanding. 

 Palpi short, somewhat club-shaped, about one-fifth as long as the proboscis, 

 black scaled, the tips and bases of segments with white scales ; setae rather short, 

 black. Antennae with the distal joints longer than the basal ones, rugose, pilose, 

 black ; second joint thickened, pale at base ; tori subspherical, with a cup-shaped 

 apical excavation, pale yellow without, blackish within. Clypeus shortly conical, 

 prominent, blackish-brown, nude. Eyes brownish black. Occiput blackish, 

 broadly clothed with narrow curved scales, on the vertex pale ocherous and 

 bronzy brown intermixed, black ones on the sides, many erect forked scales, some 

 black, some pale ; cheeks yellowish-white scaled, with a quadrate black patch 

 above; setae along the margins of the eyes black, a tuft of golden-yellow ones 

 projecting between the eyes. 



Prothoracic lobes elliptical, remote dorsally, clothed with narrow pale yellow 

 scales and black bristles. Mesonotum dark brown, uniformly clothed with small, 

 narrow curved, bronzy brown scales, some paler ones around antescutellar 



