156 O. Kröber: 
pollinose. Abdomen deep black; posteriorly lightly pollinose. 
Wings brown in front; first posterior cell and the space behind the 
streak corresponding to the spurious vein of the Syrpdhidae in the 
first posterior cell, pure hyaline; a brown streak in front of the 
fifth vein. Legs black, the tibiae and basal joints of the tarsi in 
large part reddish or yellowish; pulvilli light yellow; ventral 
process of the fifth segment extraordinarily large; seventh segment 
as long as the three preceding together. 
d: Abdomen in ground-color black; either wholly so, or more 
or less, or rarely entirely, red; the ground-color, save at the base, 
however, is almost wholly obscurely by the reddish brown pollen. 
Length 19—23 mm. Six specimens. 
Chapada.‘ 
21. Conops inornatus Will., 1. c., p. 45. 
d: „Front black, shining, the vertical callosity reddish. Face 
yellow, with golden pollen on the sides extending up on the lower 
part of the front. Cheeks wholly yellow. Thorax black, shining, 
lightly pollinose; margins of the thorax and of the scutellum with 
moderately larger bristles. Abdomen slender, black, shining, the 
narrow hind margins of the third and fourth segments, the fifth 
on the sıdes and behind, and the sixth nearly wholly, light golden. 
pollinose. Legs brown, base of tibiae yellow; basal joints of the 
tarsi yellowish. Wings subhyaline, without distinct picture, though 
the color is more intense in front; yellow in the costal cell. 
Q: Wings distinctly brown before the third vein and in the 
basal cells and proximal portion of the discal cell. Abdomen 
diffusely whitish pollinose behind; the second segment largely 
reddish; ventral process of the fifth segment small. Length 10 mm. 
— Two specimens. 
Chapada.‘ 
Die folgenden Arten sind in keine Tabelle zu bringen, da nicht 
einmal feststeht, ob sie überhaupt in diese Gattung gehören. 
22. Conops dimidiatipennis Sichel 
Ann..Soc. ent Ahrance, A. ser,, 2. p. 121 :(1862): 
Diese Art ist irrtümlich in Kertesz’ Katalog palaearktischer 
Dipteren, als aus Gallia stammend, unter dem Namen Conops 
mediatipennis Sichel aufgeführt. 
Q: „Rufescens, facie flava. Antennae, verticis fascia, thoracis 
dorsum, abdomen, tarsi fere omnes, nigra. Alarum dimidiatum 
anticum nigrum, posticum albo-hyalinum. Abdominis petiolus, 
prothorax, pedes partim (forsan et aliae partes, in hoc unico 
specimine detritae) aureo sericea. Long. 18 mm. al expans. 20 mm. 
Montevideo. Ex Bombus thoracius n. spec.“ 
