Hagen.] 306 [October 22, 
ber of species, some of them as noxious as those above named. The 
well-known ‘‘ black-fly,” the most dreaded pest to visitors of moun- 
tain regions, is still known only by the manuscript name S. molestum. 
Perhaps we may very soon have a scientific description of this spe- 
cies, as, contrary to its previous custom, it has been during the last 
spring not uncommon at Jamaica Plain, in the neighborhood of 
Boston. 
I am able to make a remarkable addition to the genus and to our 
fauna by the discovery of a new species, Simulium pictipes Hag., by Dr. 
R. P. Edes and Prof. H. P. Bowditch, in the Adirondack Mountains, 
N. Y. In the rapids of the Ausable River, a little less than two 
thousand feet high, the pupal pouches were found fastened on rocks 
in clusters. A number of these, together with some larvae and a 
few just hatched imagos, preserved in carbolic acid, were given me 
for scientific investigation. As this species is much larger than any 
known American species of Simulium, and the pupal pouch is of a 
peculiar construction, I believe I am justified in giving a description 
of this new addition to our fauna. 
Simulium pictipes sp. n. 
Head velvety black; eyes brown; antennae black, the two basal 
joints in the female rufous,in the male nearly as dark as the other 
joints; palpi grayish, the basal joint black; thorax black, almost 
shining, on each side in front with a quadrangular ashy white spot; 
halteres opaque, white; abdomen black above, pale grayish beneath 
and on the sides; trochanters black ; coxae brownish ; femora white, 
black at base and tip; tibiae white (two-thirds), tip and extreme 
base black; a black external line connecting tip and base; tarsi of 
front legs black; of the other legs, the first joint white, black on tip 
(one-fourth) with an inferior black line; following joints black, the 
base of the second white; wings sub-hyaline, veins fuliginous, costa 
darker. 
Length of female, 6 mm., of male 5.25 mm.; wings, nearly 5 mm. 
Habitat, Ausable River, Adirondack, N. Y., in August. I have seen 
four females and one male; the opaque, dull colored wings seem to 
indicate that the specimens were newly hatched. 
The nearest related species known is S. piscicidium Riley (Amer. 
Entom., 11, 367). This species is much smaller, measuring 0.14—0.17 
while S. pictipes measures 0.22-0.24 inch. After giving due allow- 
ance to the fact that the specimens were just transformed, and per- 
haps the body and wings not yet duly hardened, and that they were 
