942 MOSQUITOES OF NORTH AMERICA 



scaled beneath ; knees silver scaled ; front and middle tibiae brassy marked along 

 outer surface ; front tarsi with apex of first joint and all of second, third, and 

 fourth joints brilliant white ; middle pair marked like the anterior pair ; pos- 

 terior tarsi with apex of third, all of fourth, and all but extreme tip of fifth 

 joint brilliant white. Claw formula, 0.0-0.0-0.0. 



Length: Body 10 mm.; wing 8 mm. 



Male. — Proboscis curved, tapering gradually to a point. Palpi longer than 

 the proboscis ; long joint about two-fifths the entire length of palpi, with a joint- 

 like constriction below its middle; penultimate joint about one-half the length 

 of preceding and equally stout; terminal joint about as long as long joint, 

 slender, slightly curved and tapering to a point ; vestiture steel-blue and purple, 

 beneath with brassy scales on all but last joint, the false articulation of the long 

 joint and apices of all but the last pale lilac scaled. Antennae stout, densely plu- 

 mose ; last two joints long, slender and densely ciliate, the others short and stout, 

 smooth, with a dense whorl of long blackish hairs ; second joint long and very 

 stout, compressed, about two and one-half times the length of the following one, 

 with a crest of semi-erect steel-blue and silver scales, the entire segment hairy 

 without distinct whorl ; tori black with silver-gray pruinosity. Clypeus trans- 

 verse, broadly rounded at sides, black with silvery-gray pruinosity. Occiput 

 covered with metallic blue and green scales, ocular margins silvery-white sealed ; 

 cheeks and head beneath clothed with silvery-white scales. 



Prothoracic lobes large and prominent, covered with broad, flat metallic-blue 

 scales and bearing stout black setae. Mesonotum dark brown ; vestiture of dark 

 bronzy-brown scales with iridescent luster, with broad lateral marginal stripes 

 and a narrow median stripe of pale silvery-blue scales ; patches of brilliant blue 

 scales at roots of wings. Scutellum covered with brilliant blue scales in the 

 middle, at the sides with silvery-blue ones. Postnotum piceous, nude. Pleurae 

 and coxae dark brown, densely covered with silver-white scales. 



Abdomen subcylindrical, depressed; dorsal vestiture steel-blue, the eighth 

 segment with purple scales ; first segment brilliant blue scaled ; lateral margins 

 of segments two to six narrowly silver marked, seventh segment with posterior 

 angles broadly silvered, eighth segment finely margined with silver posteriorly ; 

 claspers purple scaled; venter metallic-blue scaled, all but the last segment 

 with the lateral margins narrowly silvery; lateral cilia short, dense, pale 

 yellowish. 



Wings very narrow, with a smoky tinge, particularly in the costal region; 

 basal cross-vein oblique, almost, or quite, incident vrith the anterior cross-vein. 

 Knobs of halteres silver scaled. 



Legs slender; vestiture dark blue; femora silver marked beneath; knees 

 white ; front and middle tarsi with second segment and basal two-thirds of third 

 silvery-white; hind tarsi with fourth and basal two-thirds of fifth segments 

 silver-white. Claw formula, 1.0-1.0-0.0. 



Length: Body 10 mm.; wing 8.5 mm. 



Genitalia (plate 36, fig. 343) : Side-pieces conically tapered, over twice as 

 long as wide, a short, broad basal lobe bearing a row of coarse setae ; clasp-fila- 

 ment long and slender, with a long spine close to tip and a few fine setae on inner 

 side. Harpes broad, their edges recurved, tip bent over, with a few minute 

 terminal setas. Harpagones wanting. Unci slender, fusiform, pointed, a 

 rounded basal lobe bearing a row of hairs directed outwardly. 



Life history and habits unknown. 



Florida and Georgia. 



Georgiana, Florida (W. Wittfeld) ; Cornelia, Georgia, June 8, 1909 (W. 

 V. Reed). 



