Carpenter et al.: Mosquitoes of Southern U. S. 93 



style and consisting of a long, slender stem and a greatly enlarged, apical head; 

 the head about two-thirds as long as the stem. Structural details of head of 

 dististyle as illustrated. 



LARVA. (Fig. 46). — Head nearly as long as broad. Antenna small, about 

 one-third as long as head, smooth; antennal tuft 3-branched, inserted on outer 

 third of shaft, reaching beyond tip. Head hairs: Preanterinal (A) usually 3 to 

 5-branched, about as long as antenna; lower (B) double; upper (C) usually 

 3 to 4-branched; postclypeal (d) single, about as long as upper (C) ; sutural 

 (e) usually double; trans-sutitral (f) multiple; supraorbital usually double. 

 Upper lateral abdominal hairs long, usually triple on segment I and double on 

 II to VI. Comb of eighth segment of numerous scales, variable in number, 

 arranged in a single row, the scales becoming progressively somewhat smaller 

 ventrally; individual scale elongate with numerous fine lateral spinules extend- 

 ing nearly to apex. Siphon about five times as long as wide; pecten absent; 

 siphon with long single hairs on all aspects and a few small 2-branched tufts 

 apically; dorsal preapical spine stout, about as long as apical width of siphon. 

 Anal segment as long as wide, the dorsal plate reaching well down the sides; 

 lateral hair very long, single; dorsal brush consisting of a long, upper and lower 

 caudal hair on either side; a ventro-lateral tuft of about 12 short, subequal 

 branches on either side; gills 4, about as long as the segment, blunt. 



distribution. — Southern Florida (52); Central America and the West 

 Indies. 



bionomics. — The females are frequently encountered in the jungle near 

 their breeding places, and will occasionally feed on man. The larvae are found 

 in water collections at the bases of the leaves of epiphytic Bromeliaceae. Breed- 

 ing occurs throughout the year when the host plants contain water. 



Wyeomyia (Wyeomyia) smithii (Coquillett) 



Aedes smithii Coquillett. 1901, Can. Ent., 33:260. 



H^veomvia (W'peompia) smilhi. Lane and Cerqueira, 1942, Arq. de Zoo!., 3:553 

 (synonymy given). 



ADULT female. — Very small species. Head: Proboscis long, black; palpi 

 very short, dark. Occiput clothed dorsally with dark broad flat scales v/ith 

 metallic blue-green reflection; the vertex with broad silvery-white scales. Scales 

 of gena broad, appressed. silvery-white. Thorax: Anterior pronotal lobe covered 

 with broad appressed violaceous scales; scales of posterior pronotum, pleurae 

 and coxae broad, appressed, silvery-white, occasionally faintly tinted with blue. 

 Scutum densely matted with large elliptical dark grey-brown scales, somewhat 

 blue-green in certain lights. Abdomen: Abdomen usually laterally compressed, 

 the dorsum dark and the venter yellowish-white to silvery-white, the dark and 

 white scales separated laterally in a straight longitudinal line; the scales of the 

 dorsum dark brown, with coppery to metallic blue-green reflection. Legs: Knee 

 spots absent. Femora and tibiae dark scaled on outer surfaces, with metallic 

 blue-green reflection; inner surfaces largely pale. Hind- and fore-tarsi entirely 

 dark; mid-tarsus with segments 3 and 4 and apex of 2 white on one side. 

 Wing: Scales narrow, dark. 



