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



yellow ; metanotum pitchy black with a group of setae towards the apex ; abdomen 

 rather stout, compressed, truncate at the tip with numerous terminal coarse bristles, 

 black scaled above, creamy white beneath, the white forming deep lateral incisions at 

 the apices of the segments ; legs dark, with ^bronzy luster, the'fore legs pale brassy 

 beneath throughout their length, mid legs with the apical portion of the second, the 

 third and fourth joints silvery white beneath, hind legs with the second and third 

 joints silvery white beneath, the fourth and fifth bronzy brown. Length, 4 mm. 



^ . — Antennae shorter than in the female, the hairs of the whorls more numerous ; 

 palpi very short, white scaled ; abdomen strongly compressed along the anterior two 

 thirds, the apex dilated, with lateral and ventral groups of coarse bristles ; front legs 

 with the third and fourth joints silvery white beneath, the middle and hind legs light 

 brassy beneath, on the mid legs becoming silvery white on the third and fourth joints, 

 on the hind legs the apical half of the first, the second, third and basal part of the 

 fourth joints silvery white beneath. Length, 4.5 mm. 



Eleven specimens, Tabernilla, Canal Zone, Panama (August 

 Busck, collector), part of the specimens bred from larvse in bamboo 

 joints, the others caught in a bamboo woods. 



Type. — No. 10853, U. S. National Museum. 



Wyeomyia panamena, new species. 



Proboscis moderately stout, enlarged towards the apex ; palpi short, silvery 

 scaled at the apex; clypeus prominent, brown, with fine whitish pubescence; tori 

 yellow with fine silvery pubescence ; occiput entirely dark scaled with faint irides- 

 cence, white on the lower part of the side ; prothoracic lobes large and prominent, 

 well separated, clothed with blackish scales, a patch of whitish ones at the apices, 

 the lower portion whitish scaled ; mesonotum and scutellum clothed with brownish 

 scales with bronzy and bluish luster ; metanotum pitchy black, with a group of setae 

 near the apex ; abdomen compressed, black scaled above, white beneath, the colors 

 separated in a straight line on the sides ; legs entirely dark with metallic luster, 

 beneath the legs are bright bronzy. Length, 4 mm. 



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

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

 Type. — No. 10856, U. S. National Museum. 



Wyeomyia circumcincta, new species. 



$ . — Proboscis moderate, much dilated at the tip, black ; palpi very short, dark 

 scaled ; occiput dark scaled with bluish iridescence, eyes narrowly margined with 

 white ; prothoracic lobes prominent, well separated, clothed with dark scales which 

 have at the tip a violaceous coppery metallic sheen; mesonotum dark scaled, with 

 bronzy and obscure bluish reflections, the front margin distinctly whitish scaled ; 

 scutellum clothed like the mesothorax ; metanotum pitchy black, with a group of 

 setse near the apex ; abdomen black above with blue and bronzy luster, creamy white 

 beneath, the colors separated in a straight line on the sides ; legs dark above with 

 bronzy luster, beneath mostly with a light brassy whitish sheen, on the middle legs 

 the apical half of the second and all of the succeeding joints completely encircled 



