64 MOSQUITOES OF NOETH AMEKICA 



Description op Femaie of Wteomtia conchita (Maxb and Labva Unknown) : 



Female. — Proboscis moderate, enlarged apically, labellse small, rounded, witli 

 fine outstanding sets ; vestiture black, with a faint bronzy luster. Palpi short, 

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

 the joints subequal, rugose, pilose, black ; pilosity coarse; tori subspherical, with 

 a cup-shaped apical excavation, brownish luteous, whitish pruinose; hairs of 

 whorls moderate, rather sparse, black. Clypeus rounded triangular, convex, 

 luteous brownish, pruinose. Eyes separated at vertex by a rather broad wedge, 

 bluish black. Occiput clothed with flat, brown scales, with a slight metallic 

 blue and bronzy reflection, a silvery white patch at sides and one at vertex 

 between the eyes ; a row of bristles along margins of eyes. 



Prothoracic lobes elliptical, remote dorsally, clothed with flat silvery-white 

 scales, a row of setae along anterior margin. Mesonotum clothed with elliptical, 

 flat, brown scales, with submetallic, bronzy reflection, scales on anterior lateral 

 angles whitish ; a group of setae on anterior margin and at root of wing. Scutel- 

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

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

 a low median carina, dark-brown, a group of small setae on the posterior margin. 

 Pleurae and coxae luteous, clothed with elliptical, flat, silvery-white scales and 

 a few long, brown setae. 



Abdomen subcylindrical, truncate at tip, with numerous long, dark-brown 

 terminal setae ; dorsal vestiture black, with a slight metallic reflection, last seg- 

 ment silvery at sides and along hind margin ; venter white, the colors separated 

 at the sides in a straight line, the scales along the ventral line somewhat raised. 



Wings moderate, hyaline; petiole of second marginal cell about one-third as 

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

 vein distant nearly its own length from anterior cross-vein ; outstanding scales 

 of veins long, ligulate, brown, with bronzy and blue reflection on costa, denser 

 and slightly broader at apices of second to fifth veins. Halteres whitish, with 

 dark knob. 



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

 femora pale beneath; hind tarsi with all the joints broadly white-marked at 

 the base beneath, involving about two-thirds of the joint on the fifth ; mid tarsi 

 with a continuous white stripe on outside of third and fourth joints ; tibiae and 

 fore tarsi pale-brassy beneath. Claw formula, 0.0-0.0-0.0. 



Length : Body about 2.5 mm. ; wing 3.5 mm. 



The larv£e live in water between the leaves of Tillandsia sp. (Bromeliaceae) 

 (J. H. Pazos). 



Cuba. 



San Antonio de los Bafios (J. H. Pazos). 



WYEOMYIA ARGYRURA Dyar & Knab. 

 Wyeomyia argyrura Dyar & Knab, Proo. U. S. Nat. Mus., xxxv., 70, 1908. 

 Wyeomyia argyrura Pazos, Anal. Acad. Cien. mfid. fis. y nat. Habana, xlv, 430, 1908. 

 Wieomyia argyrura Pazos, San. y Ben., 11, 51, 677, 1909. 

 Wyeomyia argyrura Theobald, Men. CuUc, v, 627, 1910. 

 Obiginal Descbiption of Wyeomyia abgybuba: 



FemoZe.— Proboscis moderate, swollen at the tip, black-scaled; occiput dark-scaled 

 with iridescent reflections, a diffuse silvery spot at the vertex, sides of the head 

 white-scales, running up part way along the ocular margin; prothoracic lobes 

 entirely silvery-scaled; mesonotum dark bronzy brown-scaled; abdomen black-scaled 

 above with bluish reflection, the tip silver-scaled; beneath silvery-scaled, the colors 

 separated on the sides In a straight line. Legs deep brown-scaled with bluish and 

 bronzy reflections, femora and tibise white beneath as also the front tarsi, the white 

 broader and more distinct on the third joint; on the hind legs all the tarsal joints 



