28 
Psyche 
[March-June 
Genotype : Papiliomyia sepulchrasilva n. sp. 
Papiliomyia sepulchrasilva n. sp. 
Differing at once from Microdon maculatus Shannon in 
the possession of only a single basal wing spot; apical half 
of thorax largely yellow, with two round spots and a wedge 
shaped spot ; posterior half with two L-shaped spots. Abdo- 
men past second segment almost wholly dark. Yellow wing 
border extended across wing as a stripe. 
Two males. Rio Grand do Sul (Stieglmayr) . Type in the 
Natural History Museum of Vienna. Para type in the 
author’s collection. 
Syrphus cinereomaculatus n. sp. 
Plate II, fig. 12. 
Female. Front rather wide, nearly twice as wide at 
antennse as at vertex, with the slightly raised vertex shining 
black, long blackish pilose, a dull grey pilose spot in the 
shallow depression of front, on either side about midways. 
Antennse black. First and second subequal, the third three 
times as long as first, decidedly pointed at outer dorsal end. 
Arista black, thickened on basal two-thirds ; no longer than 
the third joint. Face with a small shining black bare tu- 
bercle, gently concave beneath antennse. Cheeks brownish, 
white pollinose, with a small bare diagonal stripe. Face 
heavily pollinose. Occiput to just above middle, long white 
pilose, thickly so. Pile of face long, thin, white, a con- 
spicuous tuft before wing base. Scutellum yellowish brown, 
very shining long sparse black, pilose. Squamse nearly 
white, tinged with brown, bare on lower lobe surface. 
Plumula snow white, halteres dark brown ; knob paler. 
Abdomen oval, shining black, a band on second segment 
interrupted in middle, quite narrow bands on third and 
fourth, narrowly interrupted in middle, are noticeable only 
for the gray pollen which covers them, though careful ex- 
amination shows the underlying surface to be dark brown. 
Traces of smaller narrow spots are on the fifth segment. 
Abdomen very flat, emarginate. Venter shining black, with 
obscure grey pollinose bands. 
Legs with the femora black, except the narrow yellow or 
