Superfamily TENTHREDINOIDEA 57 



clypeatus Marlatt. Man., Minn., Alta., Mont. 



Pachynematus clypeatus Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 102. 9. 



excisus (Thomson). Greenland; arctic Europe. 



Nematus excisus Thomson, 1862. Svenska Vetensk. Akad., Ofvers. Forh. 19: 628. 9. 



extensicornis (Norton). Maine, Ont. to Md. w. to Alta., Mont., Wyo., Colo.; Europe. Host: 

 Wheat, probably other Gramineae. 

 Nematus extensicornis Norton, 1861. Boston Soc. Nat. Hist., Proc. 8: 159. <5. 

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

 Nematus aureopectus Norton, 1867. Amer. Ent. Soc, Trans. 1: 219. 9. 

 Pachynematus affinis Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 97. 9, 6. 

 Pachynematus tritici Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 106. S. 

 Pachynematus foveolatus Konow, 1903. Ztschr. System. Hym. Dipt. 3: 379. 9,6. 

 Pachynematus truncatus Benson, 1948. Ent. Monthly Mag. 84: 62. 6. 



jamesi Ross. Colo., Utah. 



Pachynematus jamesi Ross, 1945. Ent. Soc. Wash., Proc. 47: 112. <J. 



kirbyi (Dahlbom). Que. to Alaska s. to Maine, Pa., Ill, Iowa, S. Dak., Mont.; Europe to Siberia. 

 Ecology: Widespread. Host: Carex. 

 Nematus kirbyi Dahlbom, 1835. Clavis Hym. Syst., p. 40. 6. 

 Nematus flaviventris Hartig, 1840. Stettin Ent. Ztg. 1: 24. 

 Nematus diaphanus Eversmann, 1847. Soc. Nat. Moscou, Bui. 20: 19. 

 Nematus lanbripennis Eversmann, 1847. Soc. Nat. Moscou, Bui. 20: 20. 

 Neynatus turgidus Zaddach, 1875. Phys. Okonom. Gesell. Konigsberg, Schr. 16: 82. 

 Nematus suadus Cresson, 1880. Amer. Ent. Soc, Trans. 8: 10. 9. 

 Pachynematus zaddachi Konow, 1903. Ztschr. System. Hym. Dipt. 3: 377. 9,6. 

 Pachynematus iiifumatus Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 107. 6. 

 Pachyneynatus refractarius MacGillivray, 1921. N. Y. Ent. Soc, Jour. 29: 31. 9. 



miscus Ross. Oreg., Calif. 



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



Taxonomy: Middlekauff, 1955. Pan-Pacific Ent. 31: 196. 

 moerens (Foerster). Alta., Alaska; Europe. Host: Gramineae. 



Nematus moerens Foerster, 1854. Naturh. Ver. Rheinlande, Verb. 11: 294. 9. 

 Nematus pteuralis Thomson, 1862. Ofvers. Svensk. Vet. Akad., Forh. 19: 628. 

 Pachynematus falonus Ross, 1945. Ent. Soc. Wash., Proc. 47: 113. 6. 



nevadensis Marlatt. Nev. 



Pachynematus nevadensis Marlatt, 1896. U. S. Dept. Agr., Div. Ent. Tech. Ser. 3: 110. 6. 

 nigrritibialis Rohwer. N. Y., Mich., Ohio, 111., Nebr., Kans. 



Pachynematus nigritibialis Rohwer, 1909. Canad. Ent. 41: 17. 9. 

 painteri Ross. Kans., Idaho. Host: Wheat. 



Pachyneynatus painteri Ross, 1945. Ent. Soc. Wash., Proc. 47: 115. 9, 6. 

 parvilabris (Thomson). N. W. T., Greenland; arctic Europe. Specimen collected on Ward Hunt 

 Is., 83° 05' N. May be the most northerly sawfly found. 



Nematris pannlabris Thomson, 1862. Ofvers. Svensk. Vet. Akad., Forh. 19: 638. 9,6. 



Pachyneynatus iyiopinatus Lindqvist, 1949. Notulae Ent. 28: 82. 



Pachynematus abstnisus Lindqvist, 1949. Notulae Ent. 28: 83. 

 setator Ross. N. Y., Ind., 111., Oreg. Host: Festuca. 



Pachynematus setator Ross, 1945. Ent. Soc. Wash., Proc 47: 113. 6. 



Biology: Kamm, 1975. Environ. Ent. 4: 312-314 (in Oreg.). 



smithae Ross. N. H.; Europe. 



Pachyyieynatns smithae Ross, 1945. Ent. Soc. Wash., Proc. 47: 116. 6. 

 sporax Ross. Sask., Idaho, Wash., Oreg., Calif. Host: Wheat. 



Pachyyieynatns sporax Ross, 1945. Ent. Soc. Wash., Proc. 47: 115. 6. 



Taxonomy: Middlekauff, 1955. Pan-Pacific Ent. 31: 196-198 (female). 

 Biology: Armitage, 1954. Calif. Dept. Agr., Bui. 54: 73. 



