54 ENTOMOLOGICAL NEWS. [March 



began to appear May 23, and continued t do so in consider- 

 able numbers for several days. 



On June 24 my assistant visited the vineyard Jfrom which 

 the leaves had been taken, and found a large number of galls 

 on the new growth of cane, and within these galls were larv;e 

 of considerable size. The same vineyard was again visited 

 by myself on August 11, when all stages of development ex- 

 cept the egg were found within the galls, the larvae now being- 

 all of them nearly or quite full grown, while some of the 

 adults were observed in the act of making their way out from 

 the galls. I visited this vineyard again on September 15, and 

 could then find only a single pupa (), after long and patient 

 searching, this being in a gall in the latter growth of cane, all 

 other galls, except for parasites, being entirely empty. A 

 later examination, made early in November, revealed not a 

 single adult in the galls, but a solitary one (a, ft) was discov- 

 ered among the fallen leaves, where it was probably in hiber- 

 nation. In this series of observations it seems to me that we 

 have conclusive proof that in Northern Ohio at least the species 

 is single brooded, the adult wintering over among fallen leaves 

 and other similar rubbish, coming forth in Spring in time to 

 begin ovipositiou in the earliest growth of cane. The greater 

 abundance of galls in the earlier growth of cane points to the 

 fact that the adults are abroad in numbers, and ready to begin 

 ovipositiou, as soon as there is sufficient growth of young cane 

 to afford them the necessary nidus, and while the period of 

 ovipositiou for the species in any one locality may be, and 

 probably is, considerably protracted, though, as previously 

 shown, the season of development is over by the first of 



October. 



From within the galls I have taken pup?e from which a par- 

 asite, Catol('ci<* ti/lodrniid (//), known loalso attack the larva- 

 of Ti/lodfrtiHi fort'olatuiii, was also reared. and also pupa; (//) of a 

 small fly, Myiophasia (citrtt (/). Of three of these latter pupa-, 

 two gave me adult flies, while the third developed a secondary, 



hymeuopterous parasite (/), ('(tli/jtfit* tih'mtoi-. 



As the locality where these observations were made is fully 



three degrees of latitude north of St. Louis, Mo., it is quite 

 possible that there may be a considerable difference in the 

 habits of this species, and this seems all the more likely from 



