176 American Midland Naturalist Monograph No. 3 



slightly curved, spinose; antennal tuft multiple, inserted before middle of shaft, 

 reaching nearly to tip. Inner preclypeal spines darkly pigmented, not separ- 

 ated by more than the length of one spine. Head hairs: Preantennal (A), 

 lower (B), and upper (C) large, multiple, barbed, not inserted in a straight 

 line; postclypeal (d) small, multiple; sutural (e), trans-sutural (f), and supra- 

 orbital usually 2 to 3-branched. Upper lateral abdominal hairs usually double 

 on segments I and II. Comb of eighth segment of many scales in a patch; 

 individual scale pointed and fringed with rather slender subequal spinules. 

 Siphon three to four times as long as wide; pecten of numerous evenly spaced 

 teeth not reaching middle of siphon; subventral tuft multiple, barbed, inserted 

 beyond pecten. Anal segment longer than wide, with dorsal plate reaching two- 

 thirds of the way down the sides; lateral hair single; dorsal brush consisting of 

 a long lower caudal hair and a shorter multiple upper caudal tuft on either 

 side: ventral brush well-developed, with about two short tufts preceding the 

 barred area; gills 4, variable in length, generally about as long as the anal 

 segment. 



DISTRIBUTION. — Widely distributed in North America. Southern States: 

 Alabama (97); Arkansas (30); Florida (52); Georgia (97); Kentucky 

 (140); Louisiana and Mississippi (96); Missouri (1); North Carolina and 

 South Carolina (52); Tennessee (96); Virginia (49). Other States: Connect- 

 ed (21); Delaware (106); Illinois (42); Indiana (76); Iowa (155, 156); 

 Maine (52); Maryland (19); Massachusetts (180); Michigan (88); Minne- 

 sota (131); Montana (112); Nebraska (129); New Hampshire (52); New 

 Jersey (77); Oklahoma (159); Pennsylvania (52); Rhode Island (99); Texas 

 (130); Vermont (90); Wisconsin (48). 



BIONOMICS. — The adults are often encountered in considerable numbers in 

 woodlands near their breeding places but are seldom troublesome biters and 

 rarely enter dwellings. This species shows preference in its breeding for wood- 

 land pools containing decaying leaves but is found to a lesser extent in small 

 streams, pools, and ditches adjacent to woodland areas. It overwinters in the 

 egg stage and hatches in large numbers in the South following late winter and 

 early spring flooding. The larvae also occur in small numbers, following rains, 

 during the summer, fall, and winter months in the Southern States (4th Sv. C. 

 Med. Lab. reports, 1942-1944 unpublished). It is not known whether these 

 late-season larvae are from eggs laid during the previous year or from recently 

 deposited eggs. 



Aedes (Ochlerotatus) cantator (Coquillett) 



Culex canlalor Coquillett, 1903, Can. Ent., 35:255. 



ADULT FEMALE. — Medium sized to rather large species. Head: Proboscis 

 long, slender, dark scaled; palpi short, dark. Broad dorsal region of occiput 

 clothed with narrow whitish-yellow to pale golden brown scales and numerous 

 dark erect forked scales; lateral region of occiput covered with broad dingy- 

 yellow scales, usually speckled with dark or surrounding a small dark patch 

 near margin of eye. Thorax: Integument of scutum reddish brown; vestiture 

 consisting of narrow golden-brown scales, with those of anterior and lateral 



