14 Psyche [March 
Scatoccemyia plaumanni sp. nov. 
Holotype S : Brazil; Santa Catarina; Nova Teutonia, 
September 1955, F. Plaumann (author’s collection). 
Vertex black, darker laterally and on ocellar tubercle. 
Three distinct ocelli. Front rufous, darker near vertex. 
Face, facial grooves, and cheeks yellow, rufous in some 
areas, blackish in center of grooves. A black mark at 
the fronto-facial junction which is lower than antennal 
base, more than usual, due to antennal base being higher 
than usual. This gives the more quadrate shaped head 
when viewed from the side. A black line along oral margin. 
Cheeks more than half of eye-height. Occiput blackish 
above, dark yellow below, yellowish gray pollinose. An- 
tenna, including arista, black. Medial surface of second 
antennal segment dark reddish. Basal half of third an- 
tennal segment bright rufous. First antennal segment as 
long as wide. Second segment two times length of first. 
Third segment two times length of second. Proboscis 
black, geniculate at middle. Middle segment two times 
length of head. 
Thorax black, brownish pollinose. Dorsum with in- 
distinct dark lines. Legs mainly black, basal half to three- 
fifths yellow. Anterior surface of anterior femur dark 
yellowish. Ventral apical margin of anterior and middle 
femora dark yellow. Tibiae partly yellowish, especially 
at base and center of posterior tibia. Tarsi partly yellow- 
ish. Apical tarsal segment and apical half of claws black. 
Wings hyaline, faintly brownish along the veins. Stigma 
at apex of first and second veins yellowish. Anterior cross- 
vein markedly thickened in the middle. First posterior cell 
widely opened. Opening slightly longer than anterior 
cross vein. Calypters pale yellow. Halteres yellow, dark 
reddish at base of stem. 
Abdomen black, yellowish gray pollinose more distinct 
laterally and along distal margin of each segment. Distal 
margin of fourth and fifth segments and most of sixth 
segment dark reddish. Genitalia mainly black. 
Size: 5% mm. (without antenna). 
