40 
[Vol. V. 
Journal New York Entomological Society. 
impression deep; elytra convex, smooth, with two fine punctures, sutural 
stria almost touching the base, marginal stria broadly interrupted. 
Length, 2 mm. . ... 
Habitat: Pennsylvania, District of Columbia, Georgia, Illinois. 
Resembles T. xanthopus but lacks the second sutural stria; it is also 
smaller and paler in color. 
T. gemellus Casey. —Slender, convex, dark rufous, base of an¬ 
tennae and legs testaceous; thorax broader than long, sides rounded; 
feebly sinuate before the hind angles, which are obtuse, median line 
fine; elytra scarcely wider than the thorax, sutural stria fine, with 
traces of a second stria. Length, 2.4 mm. 
Habitat: New Jersey (Cape May). 
T. dolosus Lee .—Pale rufous, elongate, convex; thorax rather 
flattened, quadrate, sides slightly rounded; posterior transverse impres¬ 
sions deep, finely punctate; base deep, more marked at the angle ; elytra 
broader than the thorax, elongate, smooth, distinctly bipunctate; su¬ 
tural stria almost touching the base, marginal stria interrupted. Length, 
2.25 mm. 
Habitat: Massachusetts, District of Columbia, Illinois, Missouri, 
Arizona, Texas. 
T. fuscicornis Chd. —Entirely reddish brown, with the last seven 
joints of the antennae fuscous. Thorax of the form of grananus, 
with the rounded sides directed obliquely towards the base; hind angles 
a little prominent and acute; transverse basal impressions less deep, 
and has but one puncture at the middle. Elytra elongate, like those of 
dolosus , but the sides are more rounded and above are more convex. 
Length 2.5 mm. 
[To be Continued.') 
SOME SYRPHIDiE FROM LONG ISLAND. 
By Nathan Banks. 
The flies in the list given below were taken within a few miles of 
Sea Cliff, L. I., N. Y. The island, or at least this portion, is not so 
rich as the adjacent mainland in this group of insects. Specimens are 
usually more rare here, and species common elsewhere are unknown, or 
at least uncommon, here. Such, for example, is the case with the two 
large species of Heliophilus, with Syrphus torvus , Mesograpta geminata, 
and others. Along the shore we find two characteristic species. 
Eristalis ceneus and Triodonta curvipes. Among the more interesting 
