72 MOSQUITOES OF NOETH AMEEICA 



WYEOMYIA AGNOSTIPS Dyar & Knab. 



Wyeomyia agnostips Dyar & Knab, Journ. N. Y. Bnt. Soc, xv, 211, 1907. 

 Wyeomyia agnostips Busck, Smiths. Misc. Colls., quart. Iss., lii, 74, 1908. 

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



Obioinai. Description of Wteomyia agnostips : 



Proboscis rather slender, distinctly swollen towards the tip, black scaled; palpi 

 short, black scaled; clypeus prominent, black; occiput dark scaled, with blue and 

 green iridescence, the eyes not margined by pale, a small silvery spot at the vertex, 

 at the sides and beneath bright silvery; prothoracic lobes large and prominent, well 

 separated, clothed with shining coppery scales, which become violaceous on the 

 sides; pleura silver scaled; mesonotum clothed with brown scales, with slight 

 metallic luster, basally and on the scutellum with faint greenish reflection, setae 

 at the bases of the wings and on the scutellum golden yellow; metanotum pitchy 

 brown with a bluish bloom, a group of setae towards the apex; abdomen compressed, 

 clothed above with black scales with greenish luster, beneath with creamy white 

 shining vestiture, the colors separated in a straight line on the sides; legs dark, 

 brassy beneath, the middle pair with the apical three fourths of the second joint 

 and all the succeeding joints silvery white on the inner side, hind legs with the 

 fourth and fifth tarsal joints white on the inner side. Length, 4.5 mm. 



One specimen, Tabernilla, Canal Zone, Panama (August Busck, collector), cap- 

 tured in bamboo woods. 



Type.—VSo. 10858, U. S. National Museum. 



Dbscbiption op Female of Wyeomyia agnostips (Male and Labva Unknown) : 



Female. — Proboscis rather short and stout, swollen at tip, labellae with fine 

 outstanding setae; vestiture bronzy-black. Palpi short, flattened, one-sirth as 

 long as proboscis, bronzy-black. Antennae moderate, the joints slender, sub- 

 equal, rugose, coarsely pilose, black; tori subspherical, with a cup-shaped 

 apical excavation, blackish, with a whitish pruinosity; hairs of whorls long, 

 rather sparse, black. Clypeus rounded, convex, dark-brown. Eyes separated at 

 vertex by a narrow wedge, bluish-black. Occiput clothed with flat brown scales 

 with a metallic blue reflection, a small silvery-white spot at vertex, a large patch 

 at lower part of sides ; a row of setae along margin of eyes. 



Prothoracic lobes prominent, collar-like, remote dorsally, clothed with flat, 

 shining, golden and coppery scales, with a violaceous luster in some lights, a 

 row of setae along front margin. Mesonotum clothed with elliptical, flat, brown 

 scales with a submetallic reflection ; scales on lateral angles whitish ; a group of 

 ferruginous bristles over roots of wings. Scutellum trilobate, with vestiture 

 similar to and continuous with that of mesonotum, each lobe with a small tuft 

 of brown bristles. Postnotum elliptical, prominent, with three lines converg- 

 ing towards the posterior angle, dark-brown, a group of small setae near the 

 posterior margin. Pleurae dark-brown, coxae 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 greenish and 

 coppery metallic reflection; venter yellowish-white, submetallic, colors sepa- 

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

 seventh segment with a median line of brownish raised scales. 



Wings moderate, hyaline; petiole of second marginal cell one-fourth as long 

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

 incident, outstanding scales of the veins broadly ovate, mostly obliquely trun- 

 cate, brown with blue reflection on costa, shorter and denser apically. Halteres 

 whitish, with black knobs. 



Legs rather long and slender, black with a bronzy reflection; femora and tibiae 

 of hind legs pale-golden beneath; tibiae and tarsi with a pale-bronzy luster be- 

 neath ; mid tarsi with apical two-thirds of second and all the succeeding joints 

 silvery-white beneath. Claw formula, 0.0-0.0-0.0. 



