156 MOSQUITOES OF NORTH AMERICA 



Abdomen subcylindrical, compressed, truncate apically, and with many long 

 dark-brown terminal setre ; dorsal vestiture black, with a slight metallic reflec- 

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

 scales raised along the mid-ventral line. 



Wings moderate, hyaline; petiole of the second marginal cell rather more 

 than one-third as long as its cell, that of the second posterior cell shorter than 

 its cell ; basal cross-vein distant much less than its own length from the anterior 

 cross- vein; outstanding scales of the veins ligulate, black, with blue reflection 

 on the costa, denser and broader on second to fourth veins outwardly, narrowly 

 ovate at tip. Halteres whitish with black knobs. 



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

 bronzy luster below, femora whitish beneath ; mid tarsi with apical third of 

 second and all of third to fifth joints silvery white on outer side. Claw formula, 

 0.0-0.0-0.0. 



Length : Body about 8 mm. ; wing 2.5 mm. 



Life history and habits unknown. 



Guatemala. 



Cacao, Trece Aguas, Alta Vera Paz, April 15, 1906 (Schwarz and Barber), 

 a single captured adult. 



WYEOMYIA HAPLA Dyar & Knab. 

 Wyeomyia hapla Dyar & Knab, Smiths. Misc. Colls., quart, iss., lii, 265, 1909. 



Original DKSCRrPTiON of Wyeomyia hapla: 



Female. Proboscis very long and slender, the tip slightly enlarged; black. Palpi 

 short, black-scaled. Occiput dark-scaled, with iridescent reflections in some lights. 

 Prothoracic lobes large, prominent, clothed with dark blue scarcely metallic scales 

 and with numerous coarse black bristles along the margin. Mesonotum dark- 

 scaled with slightly metallic luster, predominatingly of a dull green color; scutel- 

 lum clothed with similar scales. Abdomen black-scaled above, with faint greenish 

 and bluish luster, white-scaled beneath, the colors separated on the sides in a 

 straight line. Legs black-scaled with greenish luster, the mid tarsi white-scaled 

 on the fourth joint below, the hind tarsi at base of second and third, the fourth 

 and fifth joints white below except at the tips. 



One specimen, Caldera Island, Porto Bello Bay, Panama, bred from a larva in 

 water between the leaves of a bromeliaceous plant (A. H. Jennings) . 



Type no. 12102, U. S. N. M. 



Described from one of the types of W. dymodora D. and K., which was wrongly in- 

 cluded and does not fit the description. The Fort San Felipe specimen remains as 

 the type. 



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



Female. Proboscis long and slender, apical fourth enlarged, labellas moderate, 

 with fine outstanding setce ; vestiture bronzy black. Palpi short, one-eighth 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, wnth whitish pruinosity; hairs of whorls long, rather 

 sparse, black. Clypeus rounded, convex, dark brown, pruinose. Eyes separated 

 at the vertex by a narrow wedge, bluish black. Occiput clothed with flat dark 

 scales with iridescent reflection in some lights, a silvery patch on lower part of 

 sides ; two sefee on the vertex and smaller ones along the eye margin. 



Prothoracic lobes elliptical, well separated, clothed with blackish scales with 

 slight submetallic luster and with a row of black bristles along anterior mar- 

 gin. Mesonotum clothed with elliptical, flat dark-brown scales with bronzy 

 and blue luster; scales below lateral angles silvery gray; setae over roots of wings 

 dark brown. Scutellum trilobate, vestiture similar to that of mesonotum, each 

 lobe with a tuft of brown bristles. Postnotum elliptical, prominent, with a low 

 median carina, dark brown, a group of small setae near the posterior margin. 



