Eleventh Report of the State Entomologisti 237 



in the presentation of the desired Hfe-histories hereafter. A few are the 

 following : 



Latreille states that the larvte are produced in the summer or autumn, 

 and become pupje on the following spring. 



Westwood has written : " I have found the larvae of all sizes in July, one 

 of which became a pupa, and assumed the perfect state ; while another, 

 of equal size, remained throughout the winter in the larval state." 



Emerton obtained a larva of Myrmeleon immaculatus August 29th, at 

 which time it made a pitfall about two inches in diameter. On the 15th 

 of the following May the larva spun its spherical cocoon, and on the 

 25th of June the perfect insect emerged. 



Moody has taken M. immaculatus larva in April, which pupated June 

 4th, and on July 8th gave out the imago. 



Mr. Felt found the full-grown larva which is represented in figure 17^ 

 at Ithaca, N. Y., on August 15th, at which time pitfalls of about two inches 

 in diameter, were common in certain localities. 



The PMyrmeleon larva, noticed in the Seventh Report Ins, N. Y., was 

 taken at Coeymans, N. Y. (now Ravena), on June 3d, underneath a 

 carpet. 



An example of DeiuiroleoJi obsoletum (Say), imago, was taken at Pa- 

 lenville, N. Y., on August 6th, and another at Coeymans, N. Y., \n 

 the month of September. 



The following occurs among my notes in 1868 : " Sept. ist. On a ledge 

 beneath the Pentamerus hmestones of the Western mountain at Scho- 

 harie, N. Y., I captured 16 young ant-lions. When placed in a box of 

 sand, they made their pitfalls, which averaged three-eighths of an inch in 

 diameter. I find difficilty in supplying them with food, as they only 

 venture to seize some of the minute Diptera given them — the house-fly, 

 with which I have usually fed them when more advanced, proving too 

 formidable fur them at this stage of growth." 



Still another old note is this : "At Glen Onoko, near Mauch Chunk, 

 Pa., in August, 1884, I collected a number of larval ant-lions. Their 

 number was gradually reduced, through feeding upon one another it was 

 believed, and only four buried for hibernation. On April 3d they emerged 

 from the sand and made their small pitfalls. They were not carried be- 

 yond their larval stage." 



The following note, by E. A. Birge, Williams College, is also trans- 

 cribed, as containing, in addition to larval presence and pupation, inter- 

 esting observations on the habits of the insect : 



