Carpenter et al. : Mosquitoes of Southern U. S. 81 



brown, with a pair of small submedian black spots slightly posterior to mid- 

 dle and a postero-median black spot on prescutellar space; vestiture of scu- 

 tum consisting of gray scales and pale setae, the setae more numerous lat- 

 erally. Abdomen: Integument dark-brown to black, clothed dorsally with 

 long setae and pale scales, the scales more numerous on middle of the seg- 

 ments; ovate dark scales present laterally on segments III to VII. Legs: Fe- 

 mora dark, sparsely speckled with pale scales, II and III each with a pale- 

 scaled subapical spot on one side. Tibiae dark, tipped with white. Tarsi 

 marked as follows: Fore-tarsus with segment 1 narrowly white-ringed at apex, 

 2 and 3 with apical halves white, 4 and 5 entirely dark; mid-tarsus with 

 segments 1 and 2 narrowly white-ringed at apices, 3 to 5 entirely dark; hind- 

 tarsus (Fig. 41 A) with segment 1 entirely dark except for a few white scales 

 at apex, segment 2 usually with basal half dark and apical half white, 3 and 

 4 entirely white. 5 dark basallv and white apically. Wmg: Scales black and 

 yellowish-white, arranged on the veins in contrasting lines and spots (Fig. 

 41 F). Halter: Knob of halter dark-scaled. 



ADULT male. — Coloration similar to that of female. TERMINALIA (Fig. 

 41). — Ninth tergite (IX-T) sclerotized laterally, membranous dorsally; lobes 

 absent. Tenth sternite absent; anal lobe (An-L) sub-triangular, not spiculate, 

 lateral margins darkly pigmented. Phallosome (Ph) cylindrical, furcate at 

 base; apex rounded and lacking leaflets. Ventral lobes of claspette (Cl-VL) 

 fleshy, fused on the mid-line, each rounded apically and with a large, ovoid 

 lobe ventrally. Dorsal lobes of claspette (Cl-DL) widely separated, cylin- 

 drical, apex of each with three or four sickle-shaped filaments set close to- 

 gether. Basistyle (Bs) conical, about two and one-half times as long as broad, 

 bluntly rounded apically, clothed with scales and a few long setae; one stout, 

 recurved parabasal spine (P-S), two stout, recurved accessory spines (Ac-S) 

 and one slender, straight internal spine (I-S) present. Dististyle (Ds) a little 

 shorter than the basistyle and without spicules (minute non-papillated hairs), 

 curved, narrower medially, bluntly pointed at tip; terminal clan' (Ds-C) 

 bluntly pointed. 



larva (Fig. 42). — Head: Inner clypeal hairs (2) and outer clypeal 

 hairs (3) barbed, basal tubercles nearly equidistant; postclypeal (4) single 

 or branched apically, extending slightly beyond bases of inner clypeals; fron- 

 tal hairs (5-7) large, plumose; sutural (8) usually 2- to 4-branched; trans- 

 sutural (9> usuallv 2- to 5-branched. Antenna soinose ('seines on inner mar- 

 gin at middle of shaft much coarser); terminal hair (10) 2- to 4-branched 

 beyond middle, longer than the sabres; antennal tuft (11) short, inserted 

 on basal third of shaft, 2- to 4-branched. Thorax: Prothoracic dorsal sub- 

 median hairs (1-3) arising from a common sclerotized base; inner hair (1) 

 and middle hair (2) with many branches on a stout shaft, inner hair (1) 

 about half as long as middle hair (2); outer hair (3) small, simple. Pro- 

 thoracic pleural group (9-12) of four hairs; hairs 10 and 12 long, simple; 

 hair 9 long, with several lateral branches; hair 11 about one-half as long as 

 hair 10 or 12, bifid or trifid. Mesothoracic pleural prouD (9-12) of four hairs; 

 hairs 9 and 10 long, simple; hair 11 minute; hair 12 short (about one-fourth 



