ICHNEUMON-FLIES, PART 2 1 EPHIALTINAE 413 



(Fort Montgomery, Hartsdale, Ithaca, McLean Bogs Reserve in 

 Tompkins Co., Millwood, North River, Onteora Mt. in Greene Co., 

 Poughkeepsie, and Slaterville) ; North Carolina (Wake Co.); Ohio 

 (Ashland Co., Bedford, Cleveland, and Puritas Springs in Cuyahoga 

 Co.); Pennsylvania (Crisp in Westmoreland Co., Harrisburg, Hum- 

 melstown, Rockville in Dauphin Co., Spring Brook, and West View); 

 South Carolina (Greenville) ; Vermont (Laurel Lake near Jacksonville) ; 

 and Wisconsin (Madison and Sawyer Co.). 



Collection dates are from late spring to early fall. The following 

 are the earliest and latest dates: April 6 at Nicholson, Miss.; May 11 

 at Ames, Iowa; May 22 at Spring Brook, Pa.; May 23 at Plummers 

 Island, Md. and at Crailhope, Ky.; September 10 at Cleveland, Ohio 

 and at Dryden, Maine; September 12 at Plummers Island, Md.; 

 September 16 at Fort Montgomery, N. Y. ; September 17 near Cum- 

 berland, Md.; and September 24 at East Lansing, Mich. In our own 

 collecting we have found the species sparingly in deciduous woods. 



Rearing records comprise: 3 c? , from Xiphydria sp. in Tilia, Harris- 

 burg, Pa., Sept. 2, 1913. cf, from Xiphydria abdominalis, Plummers 

 Island, Md., Sept. 12, H. S. Barber. d\ reared from Carpinus infested 

 with Xiphydria, Rockville, Pa., A. B. Champlain. There are also five 

 rearings from Carpinus caroliniana, and one from "white birch," 

 without specification of the insect host. 



This species is in the Alleghanian and Carolinian faunas, occurring 

 in deciduous woods. It is adult from late spring to early fall. Several 

 species of Xiphydria serve as hosts. 



3. Genus Epirhyssa 



Figure 303,b 



Epirhyssa Cresson, 1865, Proc. Ent. Soc. Philadelphia, vol. 4, p. 39. Type: 

 Epirhyssa speciosa Cresson; designated by Viereck, 1914. 



Rhyssonota Kriechbaumer, 1890, Ann. Naturh. Hofmus. Wien, vol. 5, p. 489. 

 New synonymy. Type: Rhyssonota tristis Kriechbaumer; monobasic. 



Front wing 8.5 to 23 mm. long; areolet always absent; intercubitus 

 basad of second recurrent by 0.2 to 1.0 its length; first tergite with- 

 out basal dorsolateral carina; tergites 3 to 6 mat to polished with 

 sparse to moderately dense hairs, in the male approximately cylindric 

 and with a weakly concave apical margin; male clasper evenly con- 

 vex, its apex rounded and containing a rounded notch, without grooves 

 as described for Megarhyssa males. Structure otherwise similar to 

 that of Megarhyssa. 



This is a rather large genus, of Central and South America. A 

 single species occurs in our fauna, in southern Arizona. A number 

 of species of the Old World have been referred to the genus Epirhyssa 



