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entomologists’ directory. 
481. — New and little-known bees. The bees of the genus Ualictus found in 
New Mex. 25 pp. (Trans., 1897) 25 
506. — On some Panurgine and other bees. 14 pp. (Trans., 1898) 15 
339. — Couper (Win.). — Remarks on tent-building ants. 2 pp. (Proc., 1863) .05 
96. — C'rcNSon (E. T.). — Descriptions of two new species of Trigonalys. 
2 pp. (Trans., 1867) .05 
99. — Catalogue of a small collection of Hymenoptera made in New Mex. 
during the Summer of 1867. 14 pp. (Trans., 1868) 15 
100. — A list of the Ichnemnonidre of N. Am., with descriptions of new spe- 
cies. Parts 1 and 2. 50 pp. (Trans., 1867-68) 25 
102. — Catalogue of a collection of Hymenoptera made by F. Sumiehrast 
near Cordova, Mexico. Ichneumonidse. 38 pp. (Trans., 1868). ... .25 
105. — Notes on Mexican Pompilid® with descriptions of new species. 15 
pp. (1869) 15 
106. — List of N. Am. species of the genus Aleiodes Westm. 6 pp. (Trans., ’69) .10 
107. — List of the N. Am. species of Anthophora. Notes on Cuban Hymen- 
noptera, with descriptions of new species. 10 pp. (Trans., 1869). . .15 
108. — Descriptions of new species belonging to the subfamily Pimplarite, 
with a list of all known species found in America north of 
Mexico. 30 pp. (Trans., 1870) 25 
112. — Synopsis of the N. Am. species belonging to the genera Leucospis, 
Smicra and Chalcis. 32 pp. (Trans., 1872) 35 
113. — Hymenoptera Texana. 140 pp. (Trans., 1872) 1.50 
11 1. — Description of a new species of Masaris from Calif. 2 pp. (Trans., 1872) .05 
115. — Descriptions of Mexican lehneumonidie. 130 pp. (1873) 50 
116. — Descriptions of new Hymenoptera. 4 pp. (Trans., 1874) .05 
117. — List of Hymenoptera collected by J. Duncan Putnam, of Davenport, 
Iowa, with descriptions of two new species. 6 pp., 1 pi. (1876). ... .10 
118. — 'Notes on the species belonging to the subfamily Ichneumonides 
found in America north of Mexico. 84 pp. (Trans., 1877) .50 
120. — Descriptions of lehncumonida* chiefly from the Pacific slope of the 
U. S. and Brit. Am. 34 pp. (1878) .25 
121. — Descriptions of new species of N. Am. Hymenoptera belonging to the 
family Evaniidae. 2 pp. (Trans., 1879) 05 
122. — Catalogue of N. Am. Apidie, with descriptions of new species. 108 
pp. (Trans., 1879). ^E@T*See No. 370 .50 
123. — Catalogue of the Tenthredinidte and Urocerid® of N. Am., with de- 
scriptions of new species. 68 pp. (Trans., 1880). /rVf'See No. 127 .35 
124. — Descriptions of species belonging to the genus NyBtton inhabiting N. 
Am. 12 pp. (Trans., 1882) .15 
125. — On the species belonging to the genus Eucerceris. 4 pp. (Trans., 1882) .10 
127. — On the Tenth redinidse and UroceridiB of N. Am. (composed of Nor- 
ton’s descriptive Catalogue 1867-69, and of Cresson’s Catalogue 
and descriptions of new species, 1880. 200 pp 1.00 
340. — Synopsis of the families and genera of the Hymenoptera of Am. north 
of Mex., together with a catalogue of the described species and 
bibliography. Part 1. — Families and genera. Part 2. — Catalogue 
of species and bibliography; Parts 1 and 2 complete, 350 pp., 1887 3.00 
370.— Descriptions of new N. Am. bees (Proc. Acad. Nat. Sci., 1878), includ- 
ing No. 122, Catalogue of N. A. Apidse, with descriptions of new 
species 
1.00 
