94 



U. S. NATIONAL MUSEUM BULLETIN 216 



W. R. M. Mason (Ottawa). 9, Bells Corners, Ont., Aug. 11, 1936, 

 G. S. Walley (Ottawa). 9, locality illegible, May 5, 1885 (Ottawa). 

 This is a species of Canada and Alaska. 



Figures 36, 37. — Localities: 36 



(left), Apistephialtes masoni; 37 (right), 

 A. arcticus. 



i. Apistephialtes arcticus (Roman), new combination 



Figure 329,g 



Ephialtes arcticus Roman, 1914, M6m. Acad. Imp. Sci. St. Petersbourg, ser. 8, 

 cl. Phys.-Math., vol. 29, No. 7, p. 6; $. Type: ?, Cape Chara-Ullach, 

 mouth of Lena River, arctic Siberia (Leningrad). 



Female: Front wing 7.7 to 9.5 mm. long; propodeum a little 

 rugulose near its midline and with indistinct parallel longitudinal 

 ridges at position of median longitudinal carinae, its punctures sepa- 

 rated by about 0.7 their diameter; ovipositor sheath about 2.2 as long 

 as front wing; tip of ovipositor unusually blunt (fig. 329,g). 



Black. Palpi light brown; tegula brown, its base whitish; hind 

 corner of pronotum white, the white prolonged forward along upper 

 edge of pronotum to about 0.55 the distance to notaulus; front leg 

 fulvous, its tarsus a little brownish; middle leg fulvous, its tibia 

 a little brownish and its tarsus brown with the apical segment dark 

 brown; hind coxa and trochanters fulvous; hind femur fulvous with a 

 subapical fuscous band, its extreme apex stramineous; hind tibia 

 fuscous brown, its basal 0.12 pale brown; hind tarsus fuscous. 



The type was seen in Leningrad, and though it was not compared 

 directly with Nearctic material, it seemed to agree with Nearctic 

 specimens in all respects, including the dark brown tegula and the 

 heavy ovipositor tip. 



Specimens: 9, Katzebue, Alaska, May 29, 1951, Mona McKinnon 

 (Washington). 9, Naknek Lake, Savonoski, Alaska, July 23, 1919, 

 James S. Hine (Columbus). 9, Mile 103, Steese Highway, Alaska, 



