MOSQUITO BIOLOGY 105 



clypeal hairs simple (rarely forked toward tip), hair one of prothorax 

 short, single or weakly branched at tip ; palmate hairs rudimentary on 

 segments one and two." 



WOODLAND POOL GROUP 



[The notable members of the woodland swamp group are Aedes 

 canadensis, Aedes stiviulans, Aedes excrucians, Aedes trivittatus, Aedes 

 triseriatus, and Aedes sticticus. All members of this group winter in 

 egg or larval forms. All members normally lay their eggs on moist 

 surfaces near pools or in depressions. All show only very limited geo- 

 graphic movement.] 



Aedes excrucians Walker 

 The Brown-Striped Woods Mosquito 



DISTRIBUTION AND CHAKACTERIZATION 



[Northeastern North America. Trapped twenty-three specimens in 

 New Jersey.] 



A species closely resembling Aedes stimulans but smaller, darker in 

 color and with a brown line or stripe in center of thorax. Abdominal 

 bands grayer than in stimulans and much more diffused. 



DESCRIPTION OF THE ADULT 



Medium sized, 5—6 mm. (.20— .24 inch) long, including beak, which is 

 just about half length of body. Head brown; occiput covered with pale 

 yellow scales which extend forward between eyes ; palpi in female dark 

 brown, four- jointed, terminal joint small, oval in form, pointed at apex 

 and slightly spiny ; proboscis pale brown with dark brown scales scat- 

 tered over surface, entirely covering apical fourth. Male palpi similar 

 to canadensis in shape, brownish, with pale band in center of basal joint 

 and at two terminal ones ; fan-like tufts dense, silky brown. Antennae 

 brown in both sexes, basal and two succeeding joints in female testa- 

 ceous. 



Thorax covered with mixed pale yellow and brown scales at sides and 

 with median stripe composed wholly of brown scales, pale scales of sides 

 sometimes forming narrow border to this brown stripe ; pleura brown, 

 clothed with patches of dirty white scales. Femora yellowish beneath 

 and at extreme apex on upper side, remainder covered with mixed black 

 and white scales ; tibiae and first tarsal joints blackish brown, sprinkled 

 with whitish scales ; all other tarsal joints black. Fore and middle tarsi 



