NEW AMERICAN SYRPHID FLIES OF THE 
SUBFAMILY ERTSTALTN7F 
By Prank M. Hull 
University of Mississippi 
A number of species of Syrphid flies from the Neo- 
tropical region have been studied by the author during 
the past year. This paper describes the members of the 
subfamily Eristalinae. The types are in the author’s col- 
lection. 
Eristalis vera n. sp. 
A large species related to scutellaris but distinguished 
by entirely black pile in front of the transverse mesonotal 
suture and by the polished black hind tibiae. Length 13 
mm. 
Female. Head: face, front and cheeks shining black, 
the sides of the face with wide, thin, greyish white polli- 
nose bands which reach to the epistoma. Facial pile 
white; frontal pile, vertical pile black. The greyish 
white pollen of the face proceeds narrowly up along the 
frontal eye margin for two-thirds the length of the front. 
The upper portion of the front has an opaque black band 
extending from margin to margin which is acutely pro- 
duced forward in the middle of the front for a short dis- 
tance. The anterior margin of the black spot tends to 
be bordered by white pollen. The lower part of the front 
above the preantennal callus is slightly raised and mi- 
nutely punctate. The callus has diagonal, rugose furrows 
on either side. The antennae are black ; the arista is red- 
dish sepia becoming a little lighter towards the base. 
Eyes bare. Facial concavity moderately deep above the 
tubercle. Thorax: mesonotum and scutellum entirely 
black pilose ; only the notopleura and the ventral scutel- 
lar fringe are whitish pilose. There is an indistinct grey 
band in front of the transverse suture. The anterior 
margin of the transverse suture itself is obscurely mar- 
gined with greyish white pollen. Behind the transverse 
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