26 MOSQUITOES OF NORTH AMERICA 



blue and green scales, a patch of more brilliant ones over root of wing, accom- 

 panied by some bristles. Scutelluni trilobate, with broad, flat, brilliant bine and 

 green scales, each lobe with a tuft of bristles. Postnotum elliptical, black, 

 clothed dorsally with flat, apjDressed silvery-white scales, except posteriorly, 

 where there is a small tuft of bristles. Pleurae and coxae brownish black, entirely 

 clothed with flat, elliptical, silvery-white scales. 



xlbdomen subcylindrical, truncate at tip, the dorsal vestiture deep metallic 

 blue ; first abdominal segment with metallic greenish-blue scales, silvery ones at 

 sides, with some pale hairs ; venter silvery white, the colors separated in a nearly 

 straight line on the sides, the scales roughened and suberect along mid-ventral 

 line ; last two segments dark-blue scaled medially ; tip with many black bristles. 



Wings narrow, smoky infuscated ; petiole of second marginal cell one-third as 

 long as its cell, that of second posterior cell shorter than its cell; cross-veins 

 incident. Scales of veins broadly ovate or roundly triangular, brownish, metallic 

 blue on the costa, densely overlapping, densest on the forks of second vein. Hal- 

 teres blackish, except at base. 



Legs long and slender, scales on outer half of tibiae and the first two tarsal 

 joints of the mid legs long and strongly outstanding on two sides, forming 

 paddles; slight paddles present on fore legs. Vestiture blue-black, femora and 

 tibias with violet reflection, trochanters white; a patch of white scales on apex 

 of hind femur ; an elongate patch of white scales on mid tibiae between paddle 

 and base: tarsi of middle legs with most of the scales on the second, all of the 

 third and most of the fourth joints white ; fourth joint with an elongate black 

 apical mark above; fourth and fifth joints of hind tarsi white-scaled beneath. 

 On the fore legs the paddles occupy the outer three-fourths of the tibae ; the third 

 and fourth tarsal joints white beneath. Claw formula, 0.0-0.0-0.0. 



Length : Body about 5 mm. ; wing 4.5 mm. 



In the specimen from Cordoba the white on the tarsi is more extensive, par- 

 ticularly on the front legs ; here the white begins on the second joint, broadens 

 on the third so that only a narrow dark dorsal line remains, and completely 

 encircles the base of the fourth joint. 



The adults are rare and solitary, diurnal, and will bite man ; they frequent 

 forests. Mr. Knab captured an adult at Cordoba, Mexico, flying out of a tree on 

 which many bromeliaceous plants were growing, about 50 feet from the ground. 

 He climbed the tree and carefully lowered the plants in the hope of finding the 

 larva?, but failed to discover them, although the bromelias contained numerous 

 other insects and even frogs and their larva?. 



Southern Mexico and Central America. 



Cordoba, Mexico, adult captured March 16, 1908 (F, Knab) ; La Corina, 

 Costa Pica, February 4, 1909 (W. Schaus) ; Bocas del Tore, Panama, September 

 28, 1903 (P. Osterhout) ; Paraiso, Canal Zone, Panama, November 1, 1907 

 (A. H. Jennings). 



SABETHES CYANEUS (Fabricius) Knab. 



Culex cyaneus Fabricius, Syst. Antliat., 35, 1805. 



Sabetlies locuples Robineau-Desvoidy, Mem. soc. hist. nat. Paris, iii, 412, 1827. 



Culex cyaneus Robineau-Desvoidy, Mem. soc. hist. nat. Paris, iii, 405, 1827. 



Culex cyaneus Wiedemann, Aussereurop. zweifl. Ins., i, 6, 1828. 



Culex remipes "Wiedemann, Aussereurop. zweifl. Ins., i, 573, 1828. 



Culex remipes Macquart, Hist. Nat. Ins. Dipt., i, 37, 1834. 



Culex longipes Macquart (not Fabricius), Mem. Soc. Roy. Sci. Lille, 1838, pt. 2, 38, 



1838. 

 Culex longipes Macquart (not Fabricius), Dipt, exot., i, pt. 1, 34, 1838. 

 Culex longipes Macquart (not Fabricius), Dipt, exot., suppl. i, 8, 1846. 

 Culex remipes Schiner, Reise Novara, Dipt., 31, 1868. 

 Sabethes remipes Giles, Gnats or Mosq., 185, 1900. 

 Culex cyaneus Giles, Gnats or Mosq., 333, 1900. 

 Sabethes remipes Theobald, Mon. Culicid., i, 248, 1901. 



