﻿NE ARCTIC SPECIES OF GASTERUPTIIDAE — TOWNES 141 



10. RHYDINOFOENUS BARNSTONI (Westwood). new combination 



Tegula piceous or black; occipital carina sharply reflexed, about 0.12 

 as high as width ofjlagellum. 



Forcwing about 7.0 mm. long; top of head with fine close punctures 

 and more or less distinct transverse WTinkling; temple moderately 

 convex; head about 0.47 as wide at the occipital carina as at the eyes; 

 occipital carina separated from head by a sharp groove, sharply 

 reflexed, about 0.12 as wide as the flagellum, unsculptured; pro- 

 pleurum about 0.93 as long as the mesoscutum is wide, with small 

 close punctures and postmedially punctatorugulose ; lateral lobe of 

 mesoscutum mat in female, usually polished in male, with weak, 

 more or less irregular, rather small punctures and usually with weak 

 transverse rugulosity; ovipositor sheath about 2.2 as long as forewing. 



There are two subspecies distinguished on color and on the sculpture 

 of the top of the head as indicated in the key and in the descriptions 

 below. 



lOa. RHYDINOFOENUS BARNSTONI BARNSTONI (Westwood) 



Foenus Barnstoni West-wood, Trans. Ent. Soc. London, ser. 2, vol. 1, p. 220, 1851. 



Type: 9, Hudson Bay (London). 

 Gasteruption pensile Schletterer, Ann, Naturh. Hofmus.Wien, vol. 4, p. 483, 

 1890. Type: 9 , Saskatchewan River, Canada (Geneva). (New synonymy.) 

 Foenus cressoni Bradley, Trans. Amer. Ent. Soc, vol. 34, p. 113, 1908. Type: 



9, Massachusetts (Philadelphia). (New synonymy.) 

 Gasteruption Klagesi Kieffer, Ann. Soc. Ent. France, vol. 79, p. 75, 1910. Type: 



cf, Jeannette, Pa. (Claremont, Calif.) (New synonymy.) 



Fine transverse wrinkling of top of head usually rather weak. 



Black. Mandible brown; tegula piceous to black; fore and middle 

 legs piceous, beyond the middle of the femur lightening to brown, the 

 bases of their tibiae paler; hind tibia whitish subbasally; hind tarsus 

 of female with most of the first segment, all of the second segment, 

 and usually also the third segment white; apical 0.3 ± of second and 

 third tergites ferruginous; apical 0.12 ± of ovipositor sheath white. 



Specimens. — Many males and females from Alaska (Matanuska) ; 

 Alberta (Beaverlodge, Czar, Edmonton, Greencourt, Tilley, Waba- 

 mun, and Wetaskiwin); Connecticut (Colebrook, Litchfield, and 

 Stamford) ; Illinois (Ottawa) ; Maine (Brooksville, Eustis, Green- 

 ville, Jackman, Orono, Rangeiey, and South West Harbor) ; Mani- 

 toba (Aweme and Berens River) ; Massachusetts (HoUiston and 

 Petersham); Michigan (Alcona County, Alpena County, Baraga 

 County, Gratiot County, Kent County, M enominee County, Midland 

 County, and Oceana County) ; IvIinnesota (Hastings) ; New Bruns- 

 wick ("Barber D." and Bathurst); New Hampshire (Durham, 

 Franconia, and base of Mount Washington) ; New York (Ava, Bemus 

 Point, Boreas River in Essex County, Boston, Colden, East Aurora, 

 Ellis Hollow in Tompkins County, Greene County at 2,500 feet, 



