92 THE MOSQUITOES OF NEW JERSEY 



distinct pieces. One small elongate piece forms ventral wall; another 

 much larger piece extends curvedly from one edge to other. From apex 

 of tube thus formed extend two small tubular structures, terminated at 

 their apices by articulated, irregular, corneous piece which, by the ac- 

 tion of the long, somewhat chitinous piece coming from the interior of 

 the eighth abdominal segment, is capable of being thrust forward and 

 horizontally outward. Another separate little piece on dorsal side of the 

 main inner tube has serrated edge plainly seen from side view of the 

 entire siphon. 



MALARIAL GROUP 



[Notable members of the malarial group are Anopheles punctipennis. 

 Anopheles quadrimaculatus, and Anopheles walkeri. All members of 

 this group winter in the adult form in sheltered places. All lay their eggs 

 on the surface of water. All show very limited geographic movement.] 



Anopheles punctipennis Say 

 The Mottled Wing Anopheles 



DISTRIBUTION AND CHARACTERIZATION 



[Southern Canada and United States and southward to Central 

 Mexico. Trapped 2,674 females in New Jersey.] 



Medium sized dark brown with upper surface of thorax dark brown 

 at sides, with several narrow lines of yellowish gray hairs appearing as 

 one broad gray stripe in center. Beak and legs unhanded ; wings densely 

 clothed with black and yellow scales, two large black patches and two 

 smaller yellow ones on front margin especially conspicuous. Abdomen 

 dark brown, profusely scattered with yellowish brown hairs. 



DESCRIPTION OF THE ADULT 



This species varies considerably in size and is of slight build. Body 

 measures from 4—5.5 mm. (.16— .22 inch) in length; beak is just about 

 half length of body. Head dark brown, with yellowish white mixed with 

 brown scales in center of occiput near angle of eyes, posterior margin 

 of eyes with faint yellow border and with tuft of yellowish hairs be- 

 tween eyes projecting forward over head. Proboscis uniformly dark 

 brown. Palpi in female dark brown, with some pale yellow hairs at ex- 

 treme tip, long and slender, four- jointed, first joint swollen at base, 

 second longest, each succeeding one shorter. Male palpi three- jointed, 

 dark brown, paler toward apex, with long hairs on central joint and tip 



