WYEOMYIA PANDOEA 87 



Description of Female oe Wteomyia mbxanocephaia. (Male and Labva Unknown) : 



Female. — Proboscis rather short, swollen apically ; vestiture black with a blue 

 reflection, bronzy beneath; labellae small, rounded, with fine outstanding setse. 

 Palpi short, flattened, bronzy black. Antennae moderate, the joints slender, 

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

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

 rather sparse, black. Clypeus rounded, convex, blackish, slightly pruinose. 

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

 with flat black scales with a blue reflection, a silvery patch below; two set^ 

 at vertex and smaller ones along margin of the eyes. 



Prothoracic lobes elliptical, distinctly separated, clothed with flat shining blue 

 and violaceous scales, a row of sets along anterior margin. Mesonotum clothed 

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

 on lateral angles bronzy ; setae on roots of wings dark brown. Scutellum trilo- 

 bate, with vestiture similar to and continuous with that of mesonotum, each lobe 

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

 a group of small setae near 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 setse ; dorsal vestiture black, with a slight metallic reflec- 

 tion ; venter metallic yellowish white, colors separated at sides in a straight line. 



Wings moderate, 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 less than its own length from anterior cross-vein; scales of veins 

 dense, broadly ovate or rounded triangular, black, with blue reflection on the 

 costa. Halteres whitish with black knobs. 



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

 pale brassy beneath, tibiae and tarsi with a bright bronzy luster beneath, 

 strongest on middle legs ; mid tarsi with the apical third of the second and all of 

 the third, fourth, and fifth joints white on outer side, beneath also on last two 

 joints ; hind legs with last two joints white beneath. Claw formula, 0.0-0.0-0.0. 



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



Life history and habits unknown. 



Trinidad, British West Indies. 



Trinidad, June, 1905, a single adult specimen captured (A. Busck). 



We know this species only in the single example from Trinidad. The speci- 

 men recorded by Mr. Busck from the Canal Zone (Smiths. Misc. Colls., quart. 

 iss., lii, 73, 1908) proves on reexamination to have been wrongly identified, 

 and to be in fact a specimen of Wyeomyia canfieldi. 



WYEOMYIA PANDORA Dyar & Knab. 

 Wyeomyia pandora Dyar & Knab, Smiths. Misc. Colls., quart, iss., lil, 261, 1909. 

 Obiginai. Descbiption op Wteomtia pandoba: 



Proboscis moderate, bronzy black. Occiput black with bronzy and blue reflection 

 without white margin to the eyes. Prothoracic lobes dark metallic blue with violet 

 and coppery luster. Abdomen with the colors separated on the sides in a straight 

 line, silvery beneath. Wing-scales broad, ovate, many obliquely subtruncate; legs 

 bronzy black, mid tarsi with the apical two-thirds of the second and all the suc- 

 ceeding joints silvery white on the outer side; hind tarsi with the last two joints 

 white all around. Length, 3.5 mm. 



Four specimens, Corozal, Canal Zone, Panama, bred from larvse in Calladium 

 leaf-axils (A. H. Jennings); Gorgona, Canal Zone, Panama, bred from larvae (A. H. 

 Jennings) ; Black Swamp, Canal Zone, Panama, from larvae (A. H. Jennings). 



Type no. 12132, U. S. N. M. 



