400 Xyela. 



graeca Stein — g — Eur.: Graecia. 



Xyela Graeca J. P. Stein, Stettin. entom. Zeitg. XXXVII. 1876 p. 57, Q. 



Pinicola Gracca Ed. Andre, Spec. Hymen. Europe I. P. 9. 1881 p. 467, g. 

 infuscata Nort. — (5 — Am. : Massacliusctts. 



Xyela infuscata (Harris) Norton, Proc. Boston Soc. Nat. Hist. VIII. 1861 p. 224, (3. 



Xyela infuscata Nortou, Trans. Amer. Entom. Soc. II. 1869 p. 349 u. 3, (^. 



Macroxyela infuscata W. F. Kirby, List Hymen. Brit. Mus. I. 1882 p. 351 n. 3. 

 julii (Breb.) Cam.') — Q (5 — Eur. : Britannia, Suecia, Germania, Gallia. 



Pinicola Julii Brebisson, BuU. soc. philom. Paris 1818 p. 117. 



Xyela pusilla Dalman, Svensk. Vet.-Akad. Handl. XL. 1819 p. 124 n. 1, Q (^. 



Xyela pusilla Dalman, Anal. entom. 1823 p. 28 n. 1, S c5; T. 3 F. 1-11. 



Xyela pusilla Lepeletier, Monogr. Tenthred. 1823 p. 1 n. 1, Q ^. 



Xyela pusilla Curtis, Brit. Entom. I. 1824 p. 30; Fig. 30. 



Xyela pusilla Lepeletier, Encycl. method. Insect. X. 1825 p. 792 n. 1, Q (5- 



Xyela pusilla Lepeletier, Faune Franc. 1830 p. 94 n. 1, Q (5; T. 14 F. 7. 



Xyela pusilla Herrich-Schaeffer, Faim. Insect. German. 1830 P. 117 T. 15 (Q). 



Xyela pusilla Stephens, Illustr. Brit. Entom. Mandib. VII. 1835 p. 109 n. 1. 



Xyela pusilla Hartig, Fam. d. Blatt- u. Holzwesp. 1837 p. 352 n. 1, Q <^; T. 6 F. 25-33. 



Xyela pusilla Zetterstedt, Insect. Lappon. I. 1838 p. 356 n. 1, Q i^. 



Xyela pusilla Blanchard, Hist. nat. Insect. III. 1840 p. 223. 



Xyela pusilla Westwood, Introd. mod. Classif. Insect. II. 1840 SjTiops. p. 55. 



Xyela pusilla Guerin, Iconogr. regn. anim. VII. Insect. 1845 p. 402; T. 04 F. 12. 



Tenthredo (Xyela) pusilla Blanchard, Cuvier : Regne anim. Ed. 3. Insect. II. 1849 ; T.109 F. 3. 



Xyela pusilla Kaltenbach, Verh. naturh. Ver. preuss. Ilheinl. XV. 1858 p. 106 n. 112. 



Xyela pusilla Kawall, Stettin. entom. Zeitg. XXII. 1861 p. 127. 



Xyela pusilla Kawall, BuU. soc. natural. Moscou XXXVII. P. 1. 1864 p. 299 n. 1. 



Xyela pusilla Taschenberg, Hymeu. Deutschl. 1866 p. 28, Q (J. 



Xyela piisilla Thomson, Hymen. Scaudin. I. 1871 p. 316 n. 1, Q (^. 



Xyela pusilla Kaltenbach, Pflanzenfeinde 1874 p. 609 n. 248. 



Pinicola Julii Ed. Audre, Spec. Hj-meu. Europe I. P. 9. 1881 p. 468; T. 22 F. 11. 



Xyela pusilla Brischke, Schrift. naturf. Ges. Danzig N. F. V. P. 4. 1883 p. 319 n. 1. 



Xyela Julii Cameron, Monogr. Brit. Phytoph. Hymen. II. 1885; T. 6 F. 11. 



Xyela Julii Camerou, Entom. M. Magaz. XXII. 1885 p. 123. 



Xyela Julii Cameron, Monogr. Brit. Phytoph. HjTnen. III. 1890 p. 111 n. 1. 

 lougula Dalm. — 5 (5 — Eur. : Suecia, Germania. 



Xyela longnila Dalman, Svensk. Vet.-Akad. Handl. XL. 1819 p. 124 n. 2, Q. 



Xyela longula Dalman, Anal. entom. 1823 p. 28 n. 2, Q. 



Xyela longula Lepeletier, Monogr. Teuthred. 1823 p. 1 n. 2, Q ((5). 



Xyela longula Lepeletier, Encycl. method. Insect. X. 1825 p. 792 n. 2, Q. 



Xyela longiila Hartig, Fam. d. Blatt- u. Holzwesp. 1837 p. 352 n. 2, Q (J. 



Xyela longula Thomson, HjTuen. Scandiu. I. 1871 p. 316 n. 2, g. 



Pinicola lougula Ed. Andre, Spec. Hjanen. Europe I. P. 9. 1881 p. 468, g. 



Xyeia longula Brischke, Schrift. naturf. Ges. Danzig N. F. V. P. 4. 1883 p. 319 n. 2. 

 major Cress. — Q (5 — Am. : Texas. 



Xyela major Cressou, Trans. Amer. Eutom. Soc. VIII. 1880 p. 34, Q ,^. 



Macroxyela major AV. F. Kirby, List Hymen. Brit. Mus. I. 1882 p. 351 n. 1. 

 minor Nort. — S — Am.: Canada, Uuited States. 



Xyela miuor Norton, Trans. Amer. Entom. Soc. II. 1869 p. 349 n. 4, Q. 



1) Betula alba L. (Cameron). 



