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



105 



margin of the ninth tergite.) Tenth stertiite vestigial, not supporting the anal 

 membrane (A-M). Phallosome (Ph) consisting of two heavily sclerotized 

 plates, open ventrally, closed dorsally at base; each plate slender, bluntly 

 pointed, with a large, subapical thorn-like projection directed ventro-laterally, 

 and a row of about six or seven very long, stout, curved processes attached 

 ventro-laterally near base and directed antero-ventrally. Claspette absent. Basi- 

 style (Bs) about four-fifths as broad as long, pyriform, rounded apically, 

 clothed with numerous long setae; basal lobe (B-L) conical, appressed to inner 

 face of basistyle, crowned with two or three long, strong setae and several 

 smaller ones; apical lobe absent. Dististyle (Ds) about three-fourths as long as 

 basistyle, four or five times as long as broad, apical third tapered and bearing 

 several very short, stout setae; claw (Ds-C) short, slender, inserted a little 

 before apex. 



LARVA. (Fig. 54). — Head longer than broad. Antenna about one-fourth as 

 long as head, with a few coarse spines; antennal tuft represented by a small, 

 single hair inserted outwardly before middle. Head hairs: Preantennal (A) 



Fig. 53. Uranotaenia sapphir'tna (Osten Sacken). A, Male terminalia. 

 B, Phallosome (laleral view). C, Scutum and scutellum. 



