AEDES PLETCHERI 675 



prominent, densely setose. Clasp-filament large, rather strongly swollen 

 mesially with a long terminal articulated spine. Harpes concave, elliptical, 

 the inner margin thickened and revolute, the apex produced into a short stout 

 point directed outward. Harpagones with a long columnar base minutely setose, 

 bearing a long ligulate terminal filament which tapers to the tip and bears a 

 short retrose branch above the middle. Unci obscure, forming a short stout 

 basal cylinder. Basal appendages short, stout, with a number of setae. 



Larva, Stage IV (plate 133, fig. 433). — Head rounded, widest through eyes; 

 antennae moderate, uniform, slightly spinose, a small tuft before the middle; 

 both pairs of dorsal head-hairs single, ante-antennal tufts multiple. Body with 

 the skin pilose. Lateral comb of the eighth abdominal segment of about twenty 

 scales in an irregular patch, each scale with a uniform fringe of spines. Air- 

 tube short, less than twice as long as wide, the pecten of about fifteen evenly 

 spaced stout teeth running beyond the middle, followed by a multiple hair-tuft. 

 Anal segment short, with a narrow chitinous ring, spinose behind; dorsal tuft 

 a long hair and tuft on each side ; lateral hair single, small ; ventral brush well 

 developed, confined to the barred area. Anal gills small, equal, about as long as 

 the width of the chitinous ring. 



The larvae live in brackish or fresh temporary pools near the sea. Dr. Dyar 

 found them in immense nimibers in some large ditches along a road, on the 

 other side of which was the ocean. So far as known, the habits are identical 

 with those of A'edes tmniorhynchus. 



Antilles and southern Florida. 



Jamaica (M. Grabham) ; Santo Domingo, West Indies (A. Busck) ; Quaran- 

 tine Station, San Juan, Porto Eico, August 15, 1905 (through C. S. Ludlow) ; 

 Mariel, Cuba(J. E. Taylor, J. H. Pazos) ; Guajitanamo Bay, Cuba, May 31, 

 1904 (A. C. H. Eussell) ; Cabanas, Cuba, May 38 (Palmer and Eiley) ; Havana, 

 Cuba (J. E. Taylor) ; San Antonio de los Bancs, Cuba (J. H. Pazos) ; Andros 

 Island, Bahamas, June 36, 1903 (T. H. Coffin) ; Government Harbor, Bahamas, 

 1903 (T. H. Coffin) ; Nassau, Few Providence, Bahamas, June 34, 1903 (T. H. 

 Coffin) ; Tarpum Bay, Eleuthera, Bahamas (T. H. Coffin) ; Bum Cay, Bahamas 

 (T. H. Coffin) ; Current Settlement, Eleuthera, Bahamas, May 7, 1903 (T. H. 

 Coffin) ; Florida Keys (H. Byrd) ; Osprey, Florida, August 31, 1901 (S. G. 

 Webb) ; Port De Soto, Florida (through C. S. Ludlow) ; Estero, Florida, July, 

 1907 (J. B. Van Duzee) ; Tampa, Florida, March 18, 1905 (H. G. Dyar) ; New 

 Smyrna, Florida, March 31, 1905 (Dyar and Caudell) ; Miami, Florida, March 

 13, 1905 (Dyar and Caudell) ; Palm Beach, Florida (H. G. Dyar) ; Biscayne 

 Bay, Florida, (Mrs. A. T. Slosson) ; Knights Key, Florida, December 3, 1908 

 (W. H. Sligh) ; Key West, Florida, June 37, 1901 (C. N. Barney) ; Logger- 

 head Key, Dry Tortugas, June 19, 1910 (A. G. Mayer). Eeported also from 

 Isle of Piaes (Pazos), Antigua (Giles) and St. Lucia (Theobald), West Indies. 



This species differs from A'edes tceniorhynchus chiefly in having the last hind 

 tarsal joint largely black. The male genitalia and the larvse do not differ. It is 

 a very poorly defined species, perhaps better classed as a geographic race of 

 tceniorhyncJms. Some of the specimens from Florida have broader white rings 

 on the tarsi and thus approach tceniorhynchus. Dr. Pazos describes the last 

 hind tarsal joint as entirely white in Cuban specimens, but this is evidently an 

 error as his figures show that joint black with a white basal ring. 



AEDES FLETCHERI (Coquillett) Dyar & Knab. 



Oulex flavescens Theobald (not Fabricius, not de Villers), Men. Culic, i, 410, 1901. 



Oulex flavescens Giles (not Fabricius, not de Villers), Gnats or Mosq., 2 ed., 419, 1902. 



OuJex fietcheri Coquillett, Proc. U. S. Nat. Mus., xxv, 84, 1902. 



Oulex arcanus Blanchard, Les Moustiques, 303, 1904. 



OcMerotatus fietcheri Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 20, 1906. 



