REPORT OF THE STATE ENTOMOLOGIST I907 



i6t: 



mountain feed the stream and supply the fish ponds with cool 

 water. The stream is swollen after every freshet and then it 

 gathers much silt, which gives a great deal of trouble by clogging 

 the screens in the fish troughs. Of the insects collected from the 

 stream within the meadow, only May fly nymphs of the genus 

 Leptophlebia and caddis fly larvae of a number of wooden case 

 building species were found in any considerable abundance. 



Another local- 

 ity at which we 

 did some collect- 

 ing was Lily pond 

 [map 2, q\, a 

 shallow pond in 

 the woods a mile 

 north of the 

 hatchery, reached 

 by numerous 

 roads and trails, 

 each one w^orse 



than the other ^^^- 3 Trap lantern used at Old Forge (trap shown in section) 



a An ordinary acetylene bicycle lamp, attached by its own clamp 



We made several '■^ ^^^ wooden arm h, which carries also the cloth leader c, and is 



itself nailed to the post d; e \?, the trap, made of an outer cone of 



triDS to it with ^^^' ^^^ ^^ inner one cf celluoid g\ h is the cyanide package in 

 y the space between the cones; i is a cord and ; a weight for keep- 



^reat discomfort ^^^ ^^^ leader properly hung. 



the way being difficult and the mosquitos hungry and exces- 

 sively abundant, but we found it an excellent collecting ground, 

 the best for dragon flies of the summer, and two new" life his- 

 tories in that group, to be found in a subsequent section, were 

 added there. 



New mjethods. Under this heading may be mentioned the 

 use of two new pieces of apparatus that were designed for and 

 first used in the field work of 1905 ; a new form of trap lantern, 

 and a water tent trap for capturing water insects at transformation. 



New form of trap lantern. The trap lanterns we used at 

 Saranac Inn [described in N. Y. State Mus. Bui. 47, p. 399] were 

 efficient, but they were large and cumbersome, and difficult to carry 

 from place to place. I desired a smaller one that could be readily 

 carried afield, and set up and run anywhere. So, I adopted for 

 the lantern part of it a small acetylene bicycle lamp and made a 

 small round trap of tin and celluloid to attach to its front, and 

 hung out a leader in front of it, as shown in figure 3. The whole 

 was attached to a light wooden arm, which could be quickly fas- 



