1927] The Ichneumon Fly , Epiurus pterophori Ashmead 229 
left within the cell in which it was found, the upper surface of the 
stalk replaced, and both fastened securely together. This section 
of the stalk was kept under observation in a cheese-cloth covered 
battery jar. The adult emerged through a small round hole it 
had made in the stalk a few days afterward. 
The adult was identified by Dr. J. Chester Bradley as 
Epiurus pterophori Ashmead. It is known also in literature as 
Pimpla pterelas, Pimpla pterophori Ashmead, and Scambus ptere- 
las. Notes kindly given by Dr. Bradley indicate that it is 
u parasitic on larvae of stem-boring and stem-gall-making Lep- 
idoptera and Coleoptera such as Gelechia galloe-solidaginis, G. 
gallee-asterella, Pyronata nubilalis, and Stagmatophora ceanothiella. 
In literature it is also recorded as a parasite of G. gallee-asterella. 
and the beetle Mononychus vulpeculus.” 
A description of the adult may be found in Walsh. 
Epiurus pterophori has been mentioned as having been 
found feeding on the pupa of the European corn-borer. 3 Ac- 
cording to the description: “the hymenopterous larva of Epiurus 
pterophori was found feeding on the internal juices of a P. nu- 
bilalis pupa which had been broken open. The full-grown 
parasite larva spun a brown silken cocoon and pupated within 
the remains of its host. Only two of these parasites were bred.” 
Although a pale silken web was found to be spun by the 
parasite, it was not such that could be described as a “brown 
silken cocoon” as is described above. 
By the first of June all of the adults had emerged. The 
adults were transferred to breeding cages containing evening 
primrose plants. Although an attempt at oviposition was noted 
on the part of one female against the glass wall of the battery jar, 
none was observed after they were placed with the evening prim- 
rose plants. No mating was observed; and no feeding, although 
several sorts of food were offered, first sugar and water solution, 
and later small insects, placed in the cages. The adults lived for 
but a few days, during which time they were moderately active. 
Literature Cited. 
(1) J. Hamilton: Ent. News. 1894-’95, pp. 287-288. 
(2) Walsh: Trans. Acad. Sci. of St. Louis III, 1873, pp. 1, 133. 
(3) Mass. Ex. Sta. Bull. 189, p. 58, 1919. 
