9 



S. HENSHAW. Bibliography of American Economic Entomology. 



Parts I-V. <U. S. Dept. Agric., 1890-1896. 



Literature down to July 1, 1888. 

 N. BANKS. Bibliography of American Economic Entomology. Part 



VI. <U. S. Dept. Agric., 1898. 



Literature from June 30, 1888, to January 1, 1897. 



CURRENT LITERATURE is catalogued in several publications, notably 

 Entomological News, Bulletin Societe Entom. d. France, and 111. 

 Zeitsch. f. Entom. . 



BIBLIOGRAPHY OF INSECTS OF THE WEST INDIES. Kept, of Commit- 

 tee, Proc. Brit. Ass. Adv. Sci., 1888, pp. 1-28. 



HYMENOPTERA. 



LCA TALOG UES. 



E. T. CRESSON. Catalogue of the described species of North Ameri- 

 can Hymenoptera. <Proc. Entom. Soc. Phila., Vol. I, 1861- 

 1863. 



E. T. CRESSON. Catalogue of species and bibliography. Part 2 of 

 Synopsis of the Hymenoptera of America, north of Mexico. 

 Synopsis and Catalogue. Price $3. Transactions of the Am. 

 Entom. Soc., Supplementary volume, 1887. Philadelphia, 1887. 

 C. G. DE DALLA TORRE. Catalogus Hymenopterorum. 10 vols. 

 Leipzic, 1893-1900. 



Vol. I, Tenthredinidae; II, Cynipidse; III, Ichneumonidse, etc.; IV, Bracon- 

 idae; V, ChalcididfeandProctotrupidse; VI, Chrysididse; VII, Forrnicidae; 

 VIII, Fossores; IX, Vespidse; X, Apidse. Each volume can be pur- 

 chased separately. 



IL GENERAL WORKS ON CLASSIFICATION. 



E. T. CRESSON. Synopsis of the families and genera of the Hymen- 

 optera f north of Mexico, together with a catalogue of the described 

 species and bibliography. Transactions Am. Entom. Soc., Sup- 

 plementary volume, Parti, 1887. 



The second part contains the Catalogue of Species and Bibliography. 



W. H. ASIIMEAD. Classification of the horntails and sawflies, or the 



suborder Phytophaga. <Can. Entom., 1898, 7 parts. 

 W. H. ASHMEAD. Classification of the bees, or the superfamily 



Apoidea. <Trans. Amer. Entom. Soc., 1899, pp. 49-100. 

 W. H. ASHMEAD. Superfamilies in the Hymenoptera and generic 



synopses of the families Thynnidss, Myrmosidse, and Mutillidae. 



<Journ. N. Y. Entom. Soc., March, 1899, pp. 45-60. 

 W. H. ASHMEAD. Classification of the entomophilous wasps, or the 



superfamily Sphegoidea. <Can. Entom., 1899, 7 parts. 



