—, 
DGICAL NEWS. 99 
lead rufous to yellow; ocellar tubercle, a spot each side, two spots 
the occif above the neck, brown or black; two pairs of lower fron- 
bristles; antenna nearly as long as face, third joint about four times 
ong as second. Thorax blackish-brown, rufous below, marked with 
yellow as follows: mesonotum with a median stripe, which is 
{1 and attenuated anteriorly, sometimes this stripe is mar- 
fa. Metanotum polished, black. Scutellum, except base, whit- 
, with four bristles. Halteres yellow. Abdomen black or brown, but 
SEs cs aerts Gea catign width of ttn and ixch segments 
ich to nearly the entire width of fifth and sixth segments, 
w. Ovipositor rufous, not flattened, tapering, as long as abdomen. 
gs rufous to yellow. Wings as figured, the lightly shaded portions 
yellow and the darker portions dark brown. 
nastr pseudoparallela Loew? 
_ Trypeta (acrotoxa) Loew Mon. N. A. Dipt., III, 230, 1873. 
On @ Paramaribo, Dutch Guiana (Mayo) which is crushed 
o much for certain identification. It may be fraterculus 
hie but only the male has been described, and as this speci- 
ee ene renee © the Reagih of 
he c , I have so determined it. 
EXPLANATION OF PLATE VI. 
tev toee eta 
Fi Xanthacrona tuberosa, lateral aspect of scutellum and thoracic 
__ Palpi, tuft and antenna glistening snow-white; antennz faintly 
'¢ above with ocherous. Thorax and basal two-thirds of the 
“forewings glistening white, below the fold somewhat suffused with yel- 
