134 MOSQUITOES OF NORTH AMERICA 



Prothoracic lobes elliptical, well separated, clothed with flat scales with 

 slight bronzy and blue reflection, a patch of silver scales at base; a row of 

 setae along anterior margin. Mesonotum clothed with elliptical, flat dark- 

 brown scales with bronzy and blue reflections; scales under the lateral angles 

 dark gray with a blue reflection ; bristles over roots of wings black. Scutellum 

 trilobate, with vestiture similar to and continuous with that of mesonotum, 

 each lobe with a small tuft of black bristles. Postnotum elliptical, prominent, 

 luteous brown, a group of small setae near posterior margin. Pleurae and coxae 

 luteous, clothed with elliptical, flat silvery-white scales. 



Abdomen subcylindrical, somewhat compressed, truncate apically, and with 

 many long brown terminal bristles ; dorsal vestiture black with a slight metallic 

 reflection ; venter yellowish white, colors separated at the sides in a straight line. 



Wings rather narrow, hyaline ; petiole of second marginal cell less than one- 

 third as long as its cell, that of second posterior cell shorter than its cell ; basal 

 cross- vein distant slightly less than its own length from anterior cross- vein; 

 outstanding scales of veins dense, broadly ovate, obliquely subtruncate, black, 

 with a blue reflection on the costa. Halteres black, with base of stem white. 



Legs rather long and slender, black, with bronzy and blue reflection, the 

 femora whitish at base beneath; tibiae and tarsi with a bright bronzy luster 

 beneath, less marked on hind legs. Claw formula, 0.0-0.0-0.0. 



Length : Body about 3.5 mm. ; wing 3 mm. 



Life history and habits unknown. 



The specimen bears a breeding-number, but the skin preserved is that of a 

 Culex. It appears from the notes that this Wyeomyia remained unnoticed in 

 the cyanide bottle until the Culex was killed. Both specimens were given the 

 same number by the collector, as he did not know to which it belonged. Un- 

 fortunately, therefore, the larva of the Wyeomyia was missed. 



Panama. 



Tabemilla, Canal Zone, May 16, 1907 (A. Busck). 



WYEOMYIA PERTINANS (WiUiston) Theobald. 



JEdes pertinans WUUston, Trans. Ent. Soc. Lend., 271, 1896. 



JEdes pertinans Giles, Gnats or Mosq., 352, 1900. 



Wyeomyia pertinans Theobald, Mon. Culic, li, 272, 1901. 



Wyeomyia pertinans Giles, Gnats or Mosq., 2 ed., 498, 1902. 



JEdes pertinans Giles, Gnats or Mosq., 2 ed., 483, 1902. 



Wyeomyia pertinang Blanchard, Les Moustiques, 424, 1905. 



Wyeomyia pertinans Dyar & Knab (In part), Proc. Biol. Soc. Wash., xlx, 168, 1906. 



Wyeomyia pertinans Theobald, Mon. Culic, v, 680, 1910. 



Obioinai. Descbiption of Aedes pebtinans: 



cj", $. Face, basal joints of antennae and base of proboscis yellowish; antennx and 

 proboscis otherwise nearly black, the former only a little more hairy in the male 

 than In the female, the terminal joint of the male only a little longer than the pre- 

 ceding ones. Mesonotum brown, thickly covered with dark brown squamulse; pleurte 

 yellow, with white tomentum. Abdomen deep brown, with brown squamulte; venter 

 yellow, with white squamulse; male forceps small, yellow. Legs deep brown; the 

 femora, and, in a less degree, the tibia showing the yellow ground-colour on the 

 underside. Wings nearly hyaline; veins uniformly brown squamulate. Length 

 3 mm. 



Six specimens. Sea level and 1000 feet. 



Descbiption of Female of Wyeomyia pebtinans (Male and Labva Unknown) : 



Female. — Proboscis wanting in the specimen before us. Palpi short, flat- 

 tened, bronzy black. Antennae moderate, the joints slender, subequal, rugose, 

 coarsely pilose, black ; tori subspherical, with a cup-shaped apical excavation, 

 brown, with a whitish pruinosity; hairs of whorls long, rather sparse, black. 

 Clypeus rounded, convex, brown, pruinose. Eyes separated at the vertex by 

 a rather broad wedge, bluish black. Occiput clothed with flat brown scales with 

 a metallic reflection; a narrow border along the eyes, widening into a patch 



