104 American Midland Naturalist Monograph No. 3 



plate; lateral hair multiple; dorsal brush consisting of two long lower caudal 

 hairs and a long 2 to 3-branched upper caudal tuft on either side; ventral 

 brush sparse, confined to the barred area, the two proximal tufts very short; 

 gills 4, shorter than the segment, bluntly pointed. 



DISTRIBUTION. — Southern United States, Mexico, West Indies, Central 

 and South America. Southern States: Alabama (97); Arkansas (27); Florida 

 (52); Georgia and Mississippi (97); North Carolina (125); South Carolina 

 (64). Other States: Texas (108). 



BIONOMICS. — Uranotaenia lowii is not known to bite man. Remington 

 (146) found that they did not feed on man and reptiles but did feed on 

 Amphibians. The breeding habits of this species are very similar to those of 

 U . sapphirina. The larvae occur mostly along the grassy margins of ponds and 

 lakes. Larvae are found throughout the year in Florida, but farther north 

 breeding is usually restricted to the summer and early fall months (4th Sv. 

 C. Med. Lab. records, 1942-1944, unpublished). 



Uranotaenia sapphirina (Osten Sacken) 



Aedes sappbirinus Osten Sacken, 1868, Trans. Amer. Ent. Soc, 2:47. 



ADULT FEMALE. — Very small species. Head: Proboscis dark scaled, long, 

 broadened apically; palpi very short, dark scaled. Occiput shingled with dark 

 broad appressed scales having a bronzy sheen, margined anteriorly and later- 

 ally with broad iridescent bluish scales. Thorax: Integument of scutum light 

 brown, clothed with dark-brown lanceolate scales; a narrow median, longitud- 

 inal line of broad iridescent bluish scales originating near anterior margin of 

 scutum, extending entire length and covering most of middle lobe of scutellum; 

 a line of similar iridescent bluish scales present on lateral margin of scutum 

 between wing base and scutal angle. A patch of these iridescent scales also 

 present on anterior pronotal lobe and on midportion of sternopleura. A single 

 spiracular bristle present; postspiracular bristles absent. Abdomen: Tergites 

 brown scaled with metallic luster; apices of third, fifth, and sixth segments 

 usually with a patch of white scales; sternites clothed primarily with dingy- 

 white and pale metallic scales. Eighth segment blunt, largely retracted within 

 the seventh. Legs: Apices of femora and tibiae each with a small patch of 

 white scales; remaining leg scales dark brown. Wing: Scales rather broad, 

 brown except for a row of iridescent bluish scales on the stem of vein 5 and a 

 much shorter row near the base of vein 1; second marginal cell much shorter 

 than its petiole. 



ADULT MALE. — Coloration and palpi similar to that of female. TERMINALIA 

 (Fig. 53). Ninth tergite (IX-T) broad, deeply emarginate anteriorly, strongly 

 convex and extending considerably dorsad of underlying structures; lobes very 

 large, quadrate, separated by less than the width of one lobe. (These promi- 

 nent, quadrate structures do not seem to be true lobes of the ninth tergite. 

 They are probably the greatly expanded tips of either an enlarged tenth tergite 

 or the dorsal arms of the tenth stemite. In a lateral view this pair of strong 

 rib-like structures can be seen to curve dorsally and fuse with the apical 



