12 Journal New York Entomological Society. [Voi. x. 



til September 13, 1901, six months after its receipt, when there were 

 yet a few larvae, two or three pupje and one or two adults ! These 

 larvae had been surely hatched in Noveml^er, 1900, and had remained in 

 that condition for certainly ten months, including the entire sunmier. 



May 31, June i and 2, were spent at Lahaway with Mr. Brakeley, 

 and during those days the swamps for some distance around were 

 visited and dozens of pitcher plants closely examined. 



In the areas flooded during the winter by cranberry bog operations, 

 no larvse were found : but as soon as the flood line 'was passed, larvje 

 were taken ; generally half a dozen or more to a leaf. But none oc- 

 curred except in the leaves. This point was tested very thoroughly 

 throughout the season and it is absolutely certain that this little species 

 does not occur anywhere outside of the receptacles formed by Sarra- 

 cenia, except by accident. In the colder, shaded parts of the swamp, 

 where springs occurred, larvae only were found. In the warmer 

 areas pupa^ were common and, in some places, where the water and 

 moss surrounding the plant were actually tepid, the insects had already 

 emerged and nothing but empty pupa shells could be found. It 

 seems to be entirely a matter of temperature and, in some of the 

 coldest places, no transformations would be likely to occur much 

 before late June. It is certain that most hibernating larvae live from 

 early November to late May or early June, a period of fully six 

 months. No adult A'cdes could be found and certainly none made 

 any attempt to bite. Nor could &g% masses or young larvae be dis- 

 covered at this time. New leaves were developing on the pitcher 

 plant groups ; but few had the lobes opened and fewer yet contained 

 any water. Such of these as were examined contained no insect life 

 and only here and there one had trapped insects ; none had begun to 

 digest or assimilate the animal food. 



An open swamp at the head of a cranberry bog had most of the 

 leaves with pupal shells only ; but though there must have been hundreds 

 of ailult A'nh's about, not one could be found flying, nor could we 

 stir them up. In a deep, cold, huckleberry swamp, only larv;e were 

 found. It was fair to conclude from the three days' tramp that no 

 summer brood of larvae had yet begun, and it seemed strongly indi- 

 cated that Ardcs would not bite, even if given the opportunity. In 

 confirmation it may be said that late in the sunmier Mr. Brakeley saw 

 Acdes flying, and though there must have been thousands roundabout, 

 none made any effort to disturb him. 



