1949] 
Hull — Syrphid Flies 
129 
terior corners. Third segment appressed, black pilose 
except the lateral margins and except for an inconspicu- 
ous row of appressed yellow hairs on the extreme base 
of the margin. These yellow hairs are not tomentose. 
Fourth segment chiefly black pilose but an oblique view 
shows scattered, appressed, yellow hairs among the black 
ones. Fifth segment with sparse yellow hairs. The 
yellow pile upon the lateral margins of all of the seg- 
ments is comparatively short and inconspicuous. 
Holotype: female, Pucallpa, Peru, Nov. 8, 1947, Jose 
Schunke. 
Meromacrus villosa n. sp. 
A trim, black and yellow species, rather similar to anna 
Curran. Length 12 mm. 
Male. Head: face and cheeks black, the cheeks with a 
broad band of pale yellow pubescence in which however 
there is a peculiar dark spot best viewed from the side. 
This pollen also extends beneath the antennae. The pile 
of the face is pale yellow together with the pollen ex- 
tending upon the sides of the front. Middle of front 
dully shining black with linear, medial depression; the 
frontal pile is entirely yellow except for one or two black 
hairs. The antennae are entirely black; second segment 
longer than the first, the third elongate oval, gently 
arched dorsomedially but not truncate. The arista is 
but little thickened, is brownish basally, becoming pale 
at the immediate tip. The vertex is shining black with 
pale pollen in front of the ocelli, short black pile be- 
tween the ocelli and yellow pile behind. The occiput has 
pale yellow tomentum which extends up to the vertex. 
The eyes are bare and narrowly touching. Thorax: 
mesonotum dull deep black with a fine, narrow, greyish 
white line of pollen medially which runs only a short dis- 
tance beyond the transverse suture. There is a band of 
rather wide, thick, well developed, pale, creamy yellow 
tomentum running inside the humeri directly across the 
notopleura almost to the wing base and anteriorly it runs 
diagonally forward towards but not to the midline where 
it ends in a sharp medial point. The posterior margin 
