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American Midland Naturalist Monograph No. 3 



Broad median area of occiput clothed with whitish lanceolate scales and erect 

 pale forked scales; a small submedian patch of narrow brown scales and a few 

 black erect forked scales bordering the median pale area on either side; lateral 

 portion of occiput clothed with broad appressed scales, mostly pale but often 

 sprinkled with dark. Thorax: Integument of scutum blackish; a narrow longi- 

 tudinal stripe of brown lanceolate scales present medially (this stripe often 

 variable in width); remainder of scutum, including prescutellar space, clothed 

 with whitish-yellow lanceolate scales. Scales of dorsal half of posterior pro- 

 notum golden brown, lanceolate. Abdomen: First tergite white scaled; remain- 

 mg tergites each white basally, laterally and medially, with a pair of submedian 

 black patches (last two segments often entirely white) . Venter white scaled. 

 Legs: Femora and tibiae principally white scaled, speckled with dark on outer 

 aspects; first segment of each tarsus dark, liberally streaked with white and with 

 white basal and apncal rings. Hind tarsus with segments 2, 3 and 4 dark, 

 ringed basally and apically with white; segment 5 almost entirely white. Mid- 

 tarsus with segments 2 and 3 dark, narrowly white-ringed basally and apically; 

 segment 4 dark except for a few white scales at base; segment 5 entirely dark. 

 Fore-tarsus with segment 2 narrowly white-ringed basally and apically; segment 

 3 with a few white scales at base; segments 4 and 5 entirely dark. Wing: 

 Scales narrow, mixed dark brown and white, the white scales predominating. 



ADULT MALE. — Coloration similar to that of female, terminalia. (Fig. 

 94). Lobes of ninth tergite (IXT-L) nearly as long as broad, separated by a 



Ds-C 



C . KA 5T»»J 



Fig. 94. Male terminalia of Aedes dorsalis (Meigen). 



