WYEOMYIA HOMOTHE 91 



unusually large and conspicuous for a Wyeomyia. The species, along with some 

 others, also approaches Sahethes in the venation of the wings and in the larger 

 and more closely approximated prothoracic lobes. We find, however, that these 

 species are connected with typical Wyeomyia by intergrading species. W. can- 

 fieldi seems to be remarkably abundant where it occurs, and must possess un- 

 usual breeding habits, since only a single larva has been discovered, and that by 

 accident in an evidently abnormal situation. 



WYEOMYIA HOMOTHE Dyar & Knab. 



Wyeomyia homothe Dyar & Knab, Journ. N. Y. Ent. Soc, xv, 211, 1907. 

 Wyeomyia homothe Busck, Smiths. Misc. Colls., quart, iss., lii, 74, 1908. 

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



Original Description of Wyeomyia homothe: 



Proboscis long and slender, distinctly swollen at the apex; palpi very short, dark 

 scaled, a few light scales at the tip; clypeus and tori light brown with fine grayish 

 pubescence; wedge between the eyes broad, silvery scaled; occiput entirely dark 

 scaled, the eyes without margin of light scales; prothoracic lobes large and promi- 

 nent, well separated, clothed with brown scales with violet reflection, the apices 

 broadly silvery as also the base below; mesonotum clothed with dull-brown scales, 

 the setse of the scutellum brown; metanotum pitchy brown, with a group of setae 

 towards the apex; abdomen compressed, black scaled above with greenish luster, ex- 

 tending well down the sides, the venter narrowly creamy-white scaled; legs long and 

 slender, dark with bronzy luster, the mid legs with the third, fourth and fifth tarsal 

 joints marked with white on the inner side, rather indistinct and only clearly visible 

 in certain lights; scales of the wing-veins long and narrow. Length, 3 mm. 



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

 tured in bamboo woods. 



Type. No. 10859, U. S. National Museum. 



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



Female. Proboscis rather long and slender, swollen apically, bronzy black; 

 labellae small, rounded, with fine outstanding setae. Palpi short, flattened, one- 

 seventh as long as proboscis, 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 narrow wedge, bluish black. Occiput clothed with 

 flat brown scales with a metallic reflection, a small v/hite patch below ; two setse 

 on the vertex and smaller ones behind the margin of the eyes. 



Prothoracic lobes elliptical, distinctly separated, clothed with flat scales, vio- 

 laceous with bronzy reflection, a pale tip. Mesonotum clothed with elliptical, 

 flat dark-brown scales with a submetallic reflection ; scales on front margin and 

 lateral angles whitish ; bristles at roots of wings dark brown. Scutellum trilob- 

 ate, with 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 posterior angle. 

 Pleurse dark brown, coxae luteous, clothed with elliptical, flat, silvery-white 

 scales. 



Abdomen subcylindrical, compressed, truncate apically, and with many dark- 

 brown terminal seta^; dorsal vestiture black with a slight metallic reflection; 

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



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

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

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

 narrowly cuneiform, black, with bronzy reflection on costa, broader and denser 

 towards apex of wing. Halteres whitish with black knobs. 



Legs rather long and slender, black with a violaceous and bronzy reflection, 

 the femora whitish beneath; tibiae and tarsi with bronzy luster beneath; mid 



