1941] 
Neiv Species of Syrphidse 
153 
yellow apices, glittering brassy in color. Tibiae and tarsi, 
except the last three tarsal joints, pale yellow. Wings: with 
brown spots in the cross veins, in the middle of the marginal 
cell, middle of first posterior cell, tip of third longitudinal 
vein and a prominent cross band running down the wing 
from the termination of second longitudinal vein. 
Two males, Soledad, Cuba, May 24, 1925 (George Salt). 
Type in the Museum of Comparative Zoology. 
Lathyrophthalmus obtusus n. sp. 
Male. Length 10 mm. 
Head: upper facets enlarged, touching for twice the width 
of the vertical triangle, the latter nearly equilateral, much 
elevated. The ocelli standing out conspicuously. Front 
gently convex, dark brassy brown, with yellow-grey pollen, 
bare in the center. Antennae situated about the middle of 
head, entirely light brown. Arista similarly colored, bare, 
two and one-half times length of third joint. Face with a 
small oval knob, bare, gently concave below antennae, brassy 
black in color, densely yellow pollinose. Cheeks shining and 
bare, except for a narrow pollinose stripe. Spots of eyes 
small, two to three times as far apart as wide, clustered into 
an obscure horizontal band about the middle. Thorax: bril- 
liant brassy or coppery with four yellow pollinose vittae and 
a fifth exceeding narrow medially, the three central ones 
connecting with a transverse band before scutellum. Scu- 
tellum shining, varying from light yellowish brown on its 
rim to dark at base. Pile of thorax and scutellum upright ; 
long, yellowish and black hairs intermixed. Pleurae bears 
a conspicuous diagonal stripe, pollinose, from before wing 
toward fore coxae and a spot high above mid coxae. Abdomen: 
opaque black, first segment brownish yellow, blackish in 
middle and narrowly on posterior edge. Second segment 
with two large yellow spots on basal edge, their hind borders 
convex and meeting centrally. Posterior border narrowly 
shining. Third segment and fourth with narrow diagonal 
yellow pollinose stripes not interrupted ; posterior borders 
and lateral margins of these segments widely shining to 
metallic. Legs: femora shining black with apices narrowly 
yellow. Tibiae and tarsi light yellow, distal ends of tibiae 
