REPORT OF THE STATE ENTOMOLOGIST 1907 167 
under street lamps will not need to be told that on many nights even 
in midsummer insects are not out to be caught. A few moths and 
midges may be expected almost any kind of a night, but warm 
sultry still nights preceding a downpour of rain are apt to be best. 
'In the Adirondacks a dampness and chill often settle over the land 
just after sundown, putting an end to the prospects for good lantern 
| work of many a promising afternoon. During our stay at Old 
_ Forge hardly more than a half dozen nights yielded a strictly first- 
class catch —a catch of thousands of specimens and of scores of 
_ different species. 
A tent trap. Quite as an experiment, and without expecting 
any large results, we made a tent of cheese cloth [the one shown 
in plate 8] and set it directly in the bed of Beaver Meadow brook, 
just above the fish ponds, to capture and retain such winged insects 
as might upon transformation arise from the surface of the water 
beneath it. We anticipated that such insects would fly or climb 
up to the roof of the tent and remain there, attracted by the light 
above, and we thought that perhaps some of them might be col- 
lected thence more easily than they could be obtained in any other 
way. Our expectations were greatly exceeded. 
The tent was made of cheese cloth, supported on three strong 
cords. The cloth was folded about each cord and sewed on the 
inside, so as to leave no small crevices into which the insects might 
crawl and hide. The ridge cord was stapled to the top of two 
stakes [see pl. 8], and anchored to stones at each end, and the 
two end cords were carried out at the sides and similarly anchored. 
The edges of the cheese cloth dipped into the surface of the water, 
and the two sides (upstream and downstream) that felt the force 
of the current, were anchored in place with stones. Thus secured, 
the tent withstood a number of freshets that occurred during the 
month it was in operation. 
‘lt covered a water area six feet square. The stream bed here 
was covered with stones of various sizes, mostly matted over with 
moss [pl. 9, fig. 1]. In a little preliminary collecting we had 
discovered that this moss sheltered some interesting stone fly 
and May fly nymphs, but we were not prepared to anticipate 
that such numbers of them as appeared in the tent later, could 
actually be present there. . 
The tent was set up on the r5th of August and maintained in 
operation for a month, its catch being removed daily, so long as 
other work permitted. Our first peep into it on the morning of 
