HYMENOPTERA. 
I.—CATALOG UES. 
E. T. CRESSon.—Catalogue of the described species of North American 
Hymenoptera. <Proe. Entomol. Soc. of Philadelphia, Vol. I, 1861- 
63. 
®. T. CRESSoN.—Catalogue of Species and Bibliography. Part 2 of 
Synopsis of the Hymenoptera of America, north of Mexico. 
<Transactions of the Am. Entomol. Soc., Supplementary volume, 
1887. Phila., 1887. 
II.—GENERAL WORKS ON CLASSIFICATION. 
E. T. CRESSON.—Synopsis of the families and genera of the Hymeno- 
ptera, north of Mexico, together with a catalogue of the described 
species and bibliography. <Transactions Am. Entomol. Society, 
Supplementary volume, Part I, 1887. 
The second part contains the Catalogue of Species and Bibliography. 
TII.—MONOGRAPHS AND SYNOPSES. 
TENTHREDINIDA AND UROCERIDA. 
EDWARD Norton.—Catalogue of the described Tenthredinidz and Uro- 
ceridze of North America. <Trans. Amer. Ent Soc., Vol. I, 1867, 
pp. 31-84 and 193-280; Vol. II, 1868-’69, pp. 211-242 and 321-367. 
Gives synoptic tables of genera and species of both families; the Uroceride 
are treated in Vol. II, pp. 349-367. 
K. T. CrEsson.—Catalogue of the Tenthredinidwe and Uroceride of 
North America. <Trans. Amer. Ent. Soc., Vol. VIII, 1880, pp. 55- 
68. 
A synonymical reference list of the species; the Uroceride are treated on 
pp. 66, 67. 
PETER CAMERON.—Monograph of the British Phytophagous Hymen- 
optera. 2 vols. London, 1882-’85. 
Contains in arrangement of the subfamilies and genera of Tenthredinidie, 
which has been reproduced by Cresson in his general work of classifica- 
tion. 
CYNIPID A. 
R. OsSvEN SACKEN.—On the Cynipide of the North American oaks and 
their galls. <Proe. Entom. Soc. Philadelphia, Vol, I, 186163, 
pp. 47-72; additions and corrections, l. ¢., pp. 241-259. 
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