1941] 
New Species of Syrphidse 
149 
DESCRIPTIONS OF SOME NEW SPECIES OF 
SYRPHIDiE 
By Frank M. Hull 
University of Mississippi 
This paper is a continuation of studies begun several 
years ago on the Syrphid flies in the collections of the 
Museum of Comparative Zoology, which I have been privi- 
leged to study through the courtesy of Professor Nathan 
Banks. In the paper are included notes and descriptions of 
recent additions to this large collection. 
Syrphus melanostomoides n. sp. 
Male. Length 9.5 mm. 
Head: eyes touch for length of vertical triangle. Vertex, 
front and face dark shining black or brownish, the front 
above the shining bare callosity over the antennae brownish 
pollinose. The face, except for the shining tubercle and a 
narrow stripe running upward to the antennae, pale brown- 
ish, white pollinose. Cheeks and edge of oral margin, except 
in front, brownish yellow to fulvous. Tubercle of face 
rather prominent with considerable concavity below the 
antennae. Pile of vertex and front black. Pile on upper 
face dark, on lower face white. Occipital pile white up to 
angle of excavation. Antennae short, entirely black; first 
and second joints subequal, third not quite as long as first 
two combined. Arista thickened on basal four-fifths, bare. 
Eye facets slightly enlarged. Thorax: dark shining brown 
or black, rather convex on the dorsum; pile quite long, 
sparse, very slender, dark in color. Pile on scutellum simi- 
lar but even longer. Ventrally directed fringe of pile on 
scutellar margin pale colored. Mesopleurae and an area on 
the dorsal suture with a band of conspicuous yellow pollen, 
which is pale pilose. Halteres and squamae light brown ; 
lower lobe bare. Humeri and metasternum bare. Abdo- 
