OF WASHINGTON. 17 



as long as wide, conic ; pecten reaching half way, rather spiral, long, 

 even, followed by a small hair tuft. Anal segment with a large plate; 

 tuft normal; brush present. Anal gills four, small, blunt. 



Aedes laternaria Coq. (PL III, fig. 10). 



Antennae very long and slender, weak. Comb a large patch of scales 

 with widened, feathered tips. Air tube nearly three times as long as 

 wide, conic, the pecten long, sparse, running to half. Anal segment with 

 dorsal plate reaching well down on the sides, incised on the lateral mar 

 gin. Brush and tuft present, the brush with small tufts preceding. 

 Anal gills four, moderate, the tips rather sharp. 



Culex daumasturus D. & K. (PL II, fig. 6). 



Head rounded, pale ; antennas slender, rather long, suddenly narrowed 

 at terminal fifth with a large tuft at the set-off. Body moderate, the 

 hairs diminishing posteriorly. Air tube about ten times as long as 

 wide, swollen fusiform at outer third, else uniform; pecten very long, 

 but of few teeth ; several small scattered tufts. Comb a large patch of 

 simple, thorn-shaped scales over four rows deep. Anal segment ringed 

 by the plate, the brush posteriorly placed, tuft normal. Anal gills four, 

 slender, rather long. 



Culex lamentator D. & K. (PL III, fig. 8). 



Antennae thick, unusually heavily spinulated with long spinules, the 

 tuft from a set-off at the outer fourth. Body glabrous. Comb of 

 many small spines in a triangular patch. Air tube long, about six 

 times as long as wide, somewhat conical basally, then straight and 

 even; pecten rather long; a double row of hair tufts along posterior 

 edge of tube with a few small tufts scattered elsewhere. Anal seg 

 ment ringed by the plate, the brush posterior; tuft normal. Anal gills 

 rather long, tapered. 



Culex inhibitator D. & K. (PL III, fig. 7). 



Antennae thick, the tuft from a set-off at the outer third. Body 

 glabrous ; pecten comb of many scales in a triangular patch. Air tube 

 long and even, about six times as long as wide, the pecten on the basal 

 third, followed by a double row of posterior tufts. Anal segment long, 

 ringed by the plate, the brush posterior. Anal gills moderate, pointed. 



Culex mutator D. & K. (PL V, fig. 21). 



Antennae large, the tuft from a set-off at the outer third. Body pilose. 

 Air tube about four times as long as wide, the pecten of long spines, 

 half as long as the width of tube, few; followed by a double row of 

 tufts. Comb of many spines in a triangular patch. Anal segment 

 ringed by the plate, the brush posterior. Anal gills long. 



