78 MOSQUITOES OF NORTH AMERICA 



Legs long and slender, black with bronzy reflection, the femora whitish be- 

 neath ; tibias and tarsi with a bright bronzy luster beneath ; middle legs with tip 

 of second and all of third to fifth tarsal joints white beneath. Claw formula, 

 0.0-0.0-0.0. 



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



The adults were taken by Mr. Knab as they came to bite, in a shady lane be- 

 tween plantations. 



Salvador. 



Sonsonate, August 30, 1905 (F. Knab). 



WYEOMYIA ABASCANTA Dyar & Knab. 



Wyeomyia ahascanta Dyar & Knab, Proc. U. S. Nat. Mus., xxxv, 65, 1908. 

 Wyeomyia abascanta Theobald, Mon. Culic, v, 625, 1910. 



Obiginal Description of Wyeomyia abascanta: 



Female. Proboscis moderately long and slender, somewhat swollen at the apex, 

 black-scaled; occiput dark-scaled, with blue and green metallic reflection, the 

 margin of the eyes dull white-scaled; prothoracic lobes dark-scaled, with blue, 

 purple, and bronzy reflections, a patch of silvery white scales at the apex, basal 

 portion silvery white scaled; mesonotum bronzy-brown scaled, with dark bluish 

 reflection; pleura silvery-white scaled; abdomen dark-scaled above, beneath coarsely 

 white-scaled, the colors separated on the sides in a straight line; legs dark, with 

 bronzy and blue reflections, the mid legs with the apex of the second tarsal joint, 

 all of the third and fourth joints and part of the fifth silvery white-scaled on the 

 under side. Length, 3.5 mm. 



Male. The markings are as in the female. 



Two specimens, Trinidad, British West Indies, June. (A. Busck.) 



Type. Cat. No. 11983, U. S. N. M. 



Description of Female and Male of Wyeomyia abascanta (Larva Unknown) : 



Female. Proboscis rather long, tip expanded, labella? small, rounded, with 

 fine outstanding setse; vestiture bronzy black, paler beneath. Palpi short, 

 flattened, one-seventh as long as proboscis, bronzy black. Antennae moderate, 

 the joints slender, subcqual, rugose, coarsely pilose, black; tori subspherical 

 with a cup-shaped apical excavation, yellowish, with a slight white pruinosity ; 

 hairs of whorls long, rather sparse, black. Clypeus rounded, convex, yellowish, 

 pruinose. Eyes separated at vertex by a narrow wedge, bluish black. Occiput 

 clothed with flat brown scales with a bronzy and blue reflection, a narrow dull- 

 white margin behind the eyes, joining a large white spot at lower part of sides ; 

 two long set^e at vertex and a row of short ones along margins of eyes. 



Prothoracic lobes large, elliptical, distinctly separated, clothed with flat 

 bronzy-violaceous scales ; a row of setae on anterior margin. Mesonotum clothed 

 with elliptical, flat dark-brown scales, with a bronzy and blue reflection, scales 

 below lateral angles and a few on anterior margin whitish ; setae over roots of 

 wings dark brown. Scutellum trilobate, with vestiture similar to and continuous 

 with that of mesonotum, each lobe with a small tuft of black bristles. Post- 

 notum elliptical, prominent, dark brown, with a low median carina, a group of 

 small setas near the posterior margin. Pleurae brown, coxa luteous, clothed with 

 elliptical, flat silvery-white scales. 



Abdomen subcylindrical, compressed, truncate apically, and with many long 

 dark-brown terminal setae ; dorsal vestiture black, with a slight bronzy and blue 

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

 line ; scales along mid-ventral line somewhat raised. 



Wings moderate, hyaline ; petiole of second marginal cell less than one-half 

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

 vein distant less than its own length from the anterior cross-vein ; scales of veins 

 ligulate, black, with a slight bronzy reflection on costa, broader and denser on 

 forks of second and fourth veins and on third vein, particularly towards tip of 

 wing. Halteres whitish, with black knobs. 



