ICHNEUMON-FLIES, PART 2: EPHIALTTNAE 213 



Representative early and late dates of capture are: April 11 and 15 at 

 Columbia, S. C.J May 3 and 13 at Greenville, S. C; May 18 at St. 

 Anthony Park, Minn.; May 20 in Fillmore Co., Minn.; May 24 at 

 Buffalo, N. Y.; May 25 and 30 at Ithaca, N. Y.; September 17 at 

 Milton, Mass. and at Madison, Wis.; September 19 at Bolivar, 

 W. Va.; September 24 at Ithaca, N. Y. and at Harrisburg, Pa.; 

 September 26 at Gasport, N. Y. ; and November 8 at Southern Pines, 

 N. C. 



Biological notes on pin labels are as follows: one rearing from 

 Pemphredon concolor, one from P. inornatus, one from larva of 

 Pemphredon sp., one from "bee stem," one from "?stalk borer in 

 Sassafras stem," one from Crataegus, one from dead Salix, one from 

 dead Sambucus stem, one from "piazza posts," and one "reared with 

 Macremphytus." Champlain (loc. cit.) records it from "cocoons 

 found in old (borer?) burrows in Platanus occidentalis." Reinhard 

 (loc. cit.) describes the biology of this species as a parasite of prepupae 

 of Pemphredon concolor, in nests in a stump. 



One female that we caught was noted to give off an odor like that 

 of Coccygomimus, but if such an odor is usual with the species it must 

 be relatively weak because we did not notice it on other occasions. 



This subspecies occurs east of the Rocky Mountains and also 

 in Alaska. Its zonal range is from the Canadian to the Lower Austral. 

 It is adult from late spring to early fall. Rearings have been made 

 from nests of Pemphredon and from various twigs and dead wood that 

 probably contained nests of wasps or bees. 



lb. Perithous mediator neomexicanus (Viereck), new status 



Figure 322,i 



Pimpla neomexicana Viereck, 1903, Trans. Arner. Ent. Soc, vol. 29, p. 87; 9- 

 Type: 9, Beulah, N. Mex. (Philadelphia). 



Punctures on abdomen of female moderately coarse and dense; 

 male flagellum with narrow weak tyloids on about the ninth to seven- 

 teenth segments. 



Colored like P. mediator pleuralis except that the mesocutum is 

 usually entirely ferruginous with only the edges blackish, the mesepi- 

 sternum is usually entirely ferruginous except dorsoposteriorly, the 

 subapical infuscation of the hind femur is faint and restricted to about 

 1.0 of the length of the femur (or sometimes absent), and the fuscous 

 leg markings average a little broader in the male. In the female the 

 ground color of the tibiae and tarsi is a little darker stramineous than 

 in the subspecies mediator, and the fuscous markings are more ex- 

 tensive, on the hind tibia extending to the base of the tibia on the 

 front and back sides. 



