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American Midland Naturalist Monograph No. 3 



patches of white scales; the seventh segment, and often the sixth, white scaled 

 on dorso-apical margin. Venter entirely whitish scaled or with apices of seg- 

 ments dark. Legs: Legs dark scaled except for white knee spots, pale inner 

 surfaces of femora and tibiae, a few white scales at tips of tibiae, and basal 

 and apical white rings on tarsal segments. Hind tarsi with the white rings of 

 segments 1 to 4 broader than the diameter of the segments and with segment 

 5 entirely white scaled. Fore- and mid-tarsi with white rings of segments 1 to 

 3 narrower than those of hind-tarsi, and with white rings entirely lacking or 

 much reduced on segments 4 and 5. Wing: Scales narrow, dark. 



ADULT MALE. — Coloration similar to that of female, but the dorsal abdom- 

 inal bands much broader and whitish occipital scales more prevalent. Termi- 

 NALIA (Fig. 90B). Lobes of ninth tergite (IXT-L) as long as broad, rounded, 

 separated by about the width of one lobe, each bearing several short stout 

 spines. Tenth sternite (X-S) prominent, heavily sclerotized beyond middle. 



-IXT-L 



Fig. 90. Aedes canadensis (Theobald). A, Hind tarsus. B, Male terminalia. 



