WYEOMYIA ABEBELA 111 



Montserrat (Trinidad), June 1, 1905, larvae in bamboo stump near station, in 

 bamboo woods, associated with Sabelhirms undosus, which was observed to prey 

 upon them (A. Busck) ; Trinidad (P. W. TJrich). 



WYEOMYIA ABEBELA Dyar & Knab. 



Wyeomyia aieiela Dyar & Knab, Proc. U. S. Nat. Mus., xxxv, 67, 1908. 

 Wyeomyia abeiela Theobald, Men. Culic, v, 626, 1910. 



Oeiginal Desceiption of Wyeomyia abebela: 



Female. — Proboscis rather long and slender, enlarged toward the apex, black- 

 scaled; palpi black-scaled; occiput dark-scaled, the margin of the eyes clear white 

 scaled, forming a patch on the vertex; prothoracic lobes pearly violaceous in the 

 middle, the tip and base silvery white; mesonotum dull brown-scaled, with obscure 

 bronzy and blue reflection; pleura silvery white-scaled; abdomen dark-scaled above, 

 with faint bronzy and blue luster, beneath coarsely white-scaled, the colors sepa- 

 rated on the sides in a straight line; legs entirely dark-scaled, with bronzy and blue 

 reflection, the femora and hind tibiae light-scaled beneath; tarsi without white mark- 

 ings. Length, 3 mm. 



Male. — Coloration as in the female 



Six specimens, Cfirdoba, Mexico, bred from larvae in water between the leaves of 

 bromeliaceous plants. (F. Knab.) 



Type.—CaX. No. 11987, U. S. N. M. 



Descbiption of Female, Male, and Labva of Wyeomyia abebela: 



Female. — Proboscis moderate, tip expanded, labellse small, rounded, with fine 

 outstanding setse; vestiture bluish black, with brighter luster beneath. Palpi 

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

 moderate, the joints slender, subequal, rugose, coarsely pilose, black; tori sub- 

 spherical, with a cup-shaped apical excavation, black, with a whitish pruinosity ; 

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

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

 clothed with flat brown scales with a blue reflection, a small white spot at 

 vertex continued as a narrow border behind the eyes to a large white spot at 

 lower part of sides ; two setse at vertex and smaller ones along margins of eyes. 



Prothoracic lobes elliptical, well separated, clothed with flat blackish-brown 

 scales, white at base and narrowly so at tip. Mesonotum clothed with elliptical, 

 flat brown scales with a bronzy and blue reflection, scales on front margin and 

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

 trilobate, with the 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 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 bronzy and blue reflec- 

 tion; venter white, colors separated at sides in a straight, line; scales raised 

 along the mid- ventral line. 



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

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

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

 ligulate, becoming narrowly wedge-shaped and denser on forks of second and 

 fourth and outer half of third vein, black, with slight bronzy reflection on 

 costa. Halteres whitish with black knobs. 



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

 whitish beneath; tibiae and tarsi with brighter bronzy luster beneath. Claw 

 formula, 0.0-0.0-0.0. 



Length : Body about 3 mm. ; wing 2.8 mm. 



