212 Journal New York Entomological Society. [Voi. xv. 



wedge between the eyes covered with silvery scales ; occiput entirely dark scaled 

 with blue and green iridescence, no pale margin to the eyes ; prothoracic lobes large 

 and prominent, well separated, clothed with dark scales, the apex silvery scaled as 

 also the base below ; mesonotum and scutellum clothed with brownish and blackish 

 scales which show a bluish luster, seta? of the scutellum brown ; metanotum deep 

 brown with a group of setse towards the apex ; abdomen compressed, black scaled 

 above, beneath creamy white, the colors separated in a straight line on the sides; 

 legs dark with metallic luster, brassy beneath, the middle legs with the tip of the 

 second and the succeeding joints silvery white on the inner side; wings with the 

 scales of the veins short and broad on the outer half. Length, 3.5 rnm. 



One specimen, Tabernilla, Canal Zone, Panama (August Busck, 

 collector), bred from a pupa found in a bamboo joint. 

 Type. — No. 10860, U. S. National Museum. 



Wyeomyia leucopisthepus, new species. 



Proboscis rather long and slender, swollen at the apex ; palpi very short, black 

 scaled ; occiput dark scaled, with blue-green luster, the eyes evenly white margingd, 

 a small white spot on the vertex ; prothoracic lobes large and prominent, well sep- 

 arated, clothed with dark scales, the apices and bases silvery scaled ; mesonotum 

 brown scaled, in front with a few whitish scales; metanotum blackish with a group 

 of set£e towards the apex ; abdomen black scaled above, white scaled beneath, the 

 colors separated in a straight line on the sides ; legs dark with bronzy luster, brassy 

 beneath, on the hind legs the fourth and fifth tarsal joints are silvery-white scaled 

 on the inner side except at their apices which are dark scaled ; scales of the wing- 

 veins long and narrow. Length, 2.5 mm. 



One specimen, Tabernilla, Canal Zone. Panama (August Busck, 

 collector), bred from larvae in water in the leaves of Bromelias. 

 Type. — No. 10S61, U. S. National Museum. 



Wyeomyia macrotus, new species. 



Proboscis rather long and slender, swollen at the apex, black scaled ; palpi 

 short, black scaled ; clypeus prominent, black, with fine grayish pubescence; occiput 

 dark scaled with bluish luster, a metallic spot on the vertex, no white margin to the 

 eyes ; prothoracic lobes large and prominent, well separated, blackish scaled, the 

 tips and basal part white in certain lights and connected behind by a whitish band ; 

 mesonotum brown scaled, with faint bronzy and blue reflections, the hairs of the 

 scutellum dark ; metanotum dark brown with a few setre near the apex ; abdomen 

 dark scaled above with bronzy and bluish luster, beneath creamy white, the colors 

 separated in a straight line on the sides ; legs moderately slender, dark with bronzy 

 luster, brassy beneath ; scales of the wing-veins mostly short and broad, a few longer 

 ones in the region of the cross-veins. Length, 3 mm. 



Three specimens, Boqueron River, Panama, and Tabernilla, 

 Canal Zone, Panama (August Busck, collector), bred from larvae in 

 the water in the leaves of Bromelias. The pupa has remarkably long 

 breathing tubes. 



Type. — No. 10862, U. S. National Museum. 



