vJO Journal New York Entomological Society. [Voi. v. 



Body shining ; tracheae evident where not obscured by the large spots. 

 Thoracic feet marked with brown ; abdominal ones short, colorless. 

 There are six colorless, eversible, ventral glands on joints 6 to ii. 



Sfage VI. — (Ultimate.) Head pale, the marks duskily clouded; a 

 patch over eye and streak on vertex. Body whitish, the black marks 

 supplemented by a series of black streaks on the annulets, diffusely 

 spreading over the dorsum. The body is scarcely shiny and does not 

 appear sticky. Width of head .8 or i mm. 



Found on the willow at Jefferson, N. H., and Englewood, N. J. 



These larvce are gregarious, with all the appearances of slugs, 

 though they are really not sticky as they look, but only very shiny. 

 The number of feet and the ventral glands shows them to belong to the 

 Nematinre, although from general appearance one would suppose them 

 to be some species of Eriocajnpa or Afoiiostegia. 



I was much surprised that the flies should belong to Pachynematus. 

 The other larvae of this genus are solitary grass feeders, whereas a larva very 

 similar to this species is described as that of a species of Pristiphora.'^ 



TENACITY OF LIFE IN ADULTS OF CRYPTORHYN- 

 CHUS LAPATHI. 



By F. M. Webster. 



On August 24th, by invitation of Mr. Ottomar Reinecke, I visited 

 the locality near Buffalo, N. Y., locally known as Beer Creek, where 

 my friend had only a short time before discovered this species. We 

 arrived on the ground about 3 p. m., leaving about 5 p. m., and dur- 

 ing that time I was fortunate enough to capture eighteen specimens. 

 These were placed in a small collecting bottle, heavily charged with 

 cyanide of potassium, and had been prepared only a i^-^ days before. 

 I had put in so much of the cyanide of potassium that it soon dis- 

 colored the plaster parts in which it was embedded and collected so 

 much moisture that my battle was hardly fit for use. The specimens 

 were placed in this bottle as collected, and remained therein until after 

 11:30 p. m., or from six to seven hours, when they were removed and 

 placed in a small tight tin box. The following morning they were ex- 

 amined, but gave no signs of life. On returning home and opening 

 the box, on August 29th, not only were nearly all alive, but several 

 were found in copulation ! 



* P. murtfeldticB Marlatt. " A smooth greenish slug with black head, feeding 

 on black willow." Tech. ser. 3, U. S. Dept. Agr., p. 117. 



