146 AMERICAN HYMENOPTERA. 



Ereiiiotyliis arctiae Ashm. 

 Ophion arcticB MS., Riley and Howard, Insect Life, III, p. 155. ...1890. 

 MS., Lintner, Seventh Rept. N. Y. State Ent., p. 



228 1891. 



Eremotylus arctics Ashmead, Trans. Amer. Ent. Soc, Vol. 23, p. 



192, 9 cf, Orig. descr 1896. 



Morgan, La. Expt. Sta., Bull. 48 (Ser. 2), p. 



159 {Ophion macruruni) 1897. 



" " Ashmead, Smith's Ins. N. J., p. 580 1900. 



Dalla Torre, Cat. Hym., Ill, p. 184 1901. 



" " Morgan, U. S. Office Expt. Sta., Bull. 99, p. 



183, pi. 3, fig. C. 1901. 



Enemotylus " Eliot and Soule, Caterpillars and their Moths, 



p. 57 1902. 



Eremotylus " Felt, N. Y. State Mus., Bull. 76, Nineteenth 



Rept. State Ent., p. 105 1904. 



" " Szepligeti, Gen. Ins., Hym., 34me Fasc, p. 36, 



n. 8 1905. 



Viereck, Smith's Ins. N J., p. 620 1910. 



Fulvo-ferruginous ; wi^igs hyaline ; radial vein slender at base, thick- 

 ened beyond, not flexed ; discocubital vein arcuate, its outer two-thirds 

 nearly parallel with the subdiscoidal vein^ outer half of third discoidal 

 cell not enlarged, a large irregular glabrous area present in the discocu- 

 bital cell. 



Length, 12-28 mm. ; wing, 12-21 mm. ; spread, 26-44 mm. ; antennae, 

 10-25 mm. 



Head fulvo-ferruginous or frequently flavous ; vertex flavous ; ocelli 

 large, prominent, well separated, black, each frequently with an outer 

 ring of flavous ; eyes black, emarginate ; antennae long, filiform, fulvo- 

 ferruginous, with a small indistinct median tubercle below and between 

 the antennal fossae ; clypeal foveae distinct ; maxillae bidentate, tipped 

 with black. 



Thorax opaque ; mesonotum smooth, with indistinct parapsidal fur- 

 rows converging towards the scutellum ; scutellum convex, hollowed 

 in front and connecting with the mesonotum by lateral keels ; meta- 

 thorax flattened behind, slightly hollowed above the insertion of the 

 abdomen ; with an anterior transverse carina, in front of which it is 

 smooth, behind wrinkled ; with a weak median longitudinal furrow 

 and several arcuate carinae originating at the insertion of the abdomen. 



Wings hyaline ; radial vein slender at base, thickened beyond, not 

 flexed ; discocubital vein arcuate, the outer two-thirds nearly parallel 

 with the subdiscoidal vein ; third discoidal cell of nearly equal width 

 throughout ; discocubital cell with a large irregular glabrous area ; 

 nervulus well antefurcal to interstitial ; nervellus broken well above 

 the middle ; legs of the general color or frequently lighter ; claws pectin- 



