Mosquitoes 33 c 



Aedes, n. sp. 



{Ochlerotatus.) 



A few larvse collected with Aedes nearcticus Dyar at Bernard harbour, 

 Northwest Territories, represent an apparently undescribed form, but as there 

 is no way of associating an adult, a name is not proposed. — 



Head hairs single ; ante-antennal tuft in two; antennse long, slender, a two- 

 haired tuft at the middle. Skin glabrous. Lateral comb of the eighth segment 

 of fifteen scales in a narrow patch; single scale with long terminal thorn. Air 

 tu"be about three times as long as wide, tapered on the outer half; pecten reach- 

 ing beyond the middle, the last three teeth detached; hair tuft in four, situated 

 within the last tooth. Anal segment ringed by the plate, the brush posteriorly 

 directed; anal gills four, tapered, r.ather short. 



Aedes (Ochlerotatus) sp. 



A dozen females from Seward peninsula, Alaska, of an Aedes with dark- 

 brown scales over the mesonotum, the pile apparently less abundant than in 

 A. nearcticus. No advantage would be gained by attempting to apply a name 

 to this form, which must await the collection of males, or at least more perfect 

 specimens. 



Locality: Three 9 9, Teller, Alaska, July 29, 1913 (Frits Johansen); nine 9 9, 

 Nome, Alaska, August 24-25, 1916 (F.J.), Canadian Arctic Expedition. 



Vol. iii— 46963— 3 



