REPORT OF THE STATE ENTOMOLOGIST I9QO7 I71I 
sented by five specimens taken in August, one Limnobia 
-parietina taken on the 15th of August, and one Helobia 
punctipennis taken on the 20th of July. 
The black flies (Simultdae) were doubtless much less abundant 
than they would have been if our tent had been set over the brink 
of a waterfall—the favorite home of their larvae. But few 
moth flies (Psychodidae) were taken, I0 specimens in all, and 
these all in. August. Mosquitos (Culicidae) likewise were few, 
14 in all, distributed with considerable regularity over the entire 
month. 
Midges (Chironomidae) appeared in surprising abundance and 
variety. The full list of the species taken is given in Dr Johann- 
sen’s supplementary report, published herewith. The numbers of 
individuals given in the table, although very large, are much smaller 
than they would have been, but for depredations of some of the 
larger flies (especially Hemerodromias) and spiders, which managed 
to find their way in. The tent flaps were folded and then pinned as 
closely as possible; but the small spiders, which came presumably 
from the overhanging boughs of adjacent shrubbery, would get 
in, one or two of them almost every day, and up in the angles of 
the tent under the ridge. cord, they obtained a maximum of food 
with a minimum of effort. It was the more delicate little pale 
species that suffered most from these depredators. 
The Tabanidae taken in the tent were very few: I specimen of 
Chr y¥SOPS Fitkartws, aincl TO (in Abou) Or ein windlewer 
mined species of Tabanus. 
The Empididae were ali of two species: Hemerodromia 
valida and H. scapularis. These made themse'ves very 
much at home in the tent. They were to be seen constantly eating 
the little yellow midges of the genus Orthocladius, or occasion- 
ally a larger Tanypus or even a Chironomus as big as them- 
selves. | 
The remaining three families of Diptera were represented each 
by single species: the Dolichopodidae by Dolichopus scopa- 
fius; the Scatophagidae by Cordylura capillata and 
the Anthomyiidae by an undetermined species of Pegomyia. 
There can be no doubt that nearly all these forms listed lived 
as larvae in the water or on the stones beneath the tent. There is 
a possibility. that a few of those most sparingly represented may 
have found their way in as did the spiders, by working between 
the flaps. I think it probable that some of the mosquitos followed 
