58 Hymenoptera in America North of Mexico 



thoracicus Marlatt. Mont. 



Pachynemaius thoracicus Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 108. 6. 



uvator Ross. Utah, B. C, Wash. 



Pachynematus uvator Ross, 1945. Ent. Soc. Wash., Proc. 47: 114. 6. 



Unplaced Taxa of Group Clitellatus 



The following species were described from females. Because species separation of Pachyyie- 

 maius is based mostly on males, they can not be placed as yet. 



absyrtus MacGilHvray. Oreg. 



Pachynematus absyrtus MacGillivray, 1923. 111. Univ. Bui. 20(50): 27. 2. 



academus MacGillivray. Oreg. 



Pachynematus academus MacGiUivray, 1923. 111. Univ. Bui. 20(50): 27. 9. 



ater (MacGillivray). Wash. 



Messa ater MacGillivray, 1893. Canad. Ent. 25: 238. 9. 



coloradensis Marlatt. Colo. 



Pachynematus coloradensis Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 101. 9. 



ebenus (Cresson). Colo. 



Aulacomerus^ ebenus Cresson, 1880. Amer. Ent. Soc, Trans. 8: 10. 9. 



gamus Smith, n. name. Nev. 



Pachynematus graminis Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 101. 9. 

 Preocc. in Pachynematus by Cameron, 1874. 



hoodi Marlatt. Oreg. (Mt. Hood). 



Pachynematus hoodi Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 104. 9. 



luteipes (Cresson), n. comb. Nev. 



Nematus luteipes Cresson, 1880. Amer. Ent. Soc, Trans. 8: 6. 9. 



pleuricus (Norton). Colo. 



Nematus pleuricus Norton, 1867. Amer. Ent. Soc, Trans. 1: 208. 9. 



robinsonae (Rohwer). Colo. 



Lygaeonematus robinsonae Rohwer, 1915. U. S. Natl. Mus., Proc 49: 212. 9. 



stigmatus (Norton). Mass. 



Tenthredo (Nematus) stigmatus Harris, 1835. In Hitchcock, Rpt. Geol. Mineral. Bot. Zool. 



Mass., p. 583. Nom. nud. 

 Nematus stigmatus Norton, 1861. Boston Soc. Nat. Hist, Proc. 8: 161. 9. 



Species Group Vagus 



aurantiacus Marlatt. Que. to N. Y. w. to Alta., Mont., 111. Host: Carex. 



Pachynematus aurantiacus Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 95. 9, 



6. 

 Pachynematus pjinctulatns Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 103. 9. 

 Pachynematus allegatus MacGillivray, 1923. Canad. Ent. 55: 162. 9. 

 corniger (Norton). Newfoundland to Ga. w. to Minn., Kans. Host: Carex. 

 Nematus coniiger Norton, 1861. Boston Soc. Nat. Hist., Proc. 8: 159. 6. 

 Nematus snbalbatus Norton, 1864. Ent. Soc. Phila., Proc. 3: 7. 9. 

 Pachynematus repertus MacGillivray, 1921. N. Y. Ent. Soc, Jour. 29: 31. 9. 

 Pachynematus remissus MacGillivray, 1921. N. Y. Ent. Soc, Jour. 29: 32. 9. Synonymy of 



remissus may be questionable. 



montivagus Marlatt. N. H. 



Pachynematus montivagus Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 101. 9. 



obductus (Hartig). Mass. to B. C. s. to N. Y., Colo., Nev.; Greenland; Iceland, Europe to 



Siberia. Ecology: Widespread. Host: Gramineae. 

 Nematus obductus Hartig, 1837. Fam. Blattwespen und Holzwespen, nebst Einleitung 



Naturgesch. Hym., p. 201. 9,6. 

 Neynatus conductus Ruthe, 1859. Stettin Ent. Ztg. 20: 306. 9. 

 Nematus grayninis Cameron, 1874. Ent. Monthly Mag. 10: 221. 9. 

 Nematus palliventris Cresson, 1880. Amer. Ent. Soc, Trans. 8: 5. 9. 

 Pachynematus boulderensis Rohwer, 1920. U. S. Natl. Mus., Proc 57: 218. 9. 



