130 BULLETIN 193, UNITED STATES NATIONAL MUSEUM 



Froc 

 No. 



2134. North American collembolous insects of the subfamilies Achorutinae, Neanu- 



rinae, and Podurinae. By Justus W. Folsom. Pp. 477-525, 19 pis. May 

 31, 1916. 



2135. [Scientific results of the Philippine cruise of the Fisheries steamer Albatross, 



1907-1910. — No. 34.] New species of crabs of the families Inachidae and 

 Parthenopidae. By Mary J. Rathbun. Pp. 527-559. May 31, 1916. 



2136. Revision of the parasitic hymenopterous insects of the genus Aphycus Mayr, 



with notice of some related genera. By P. H. Timberlaice. Pp. 561-640, 

 6 pis. May 31, 1916. 



2137. Description of two new species of fossil turtles, from the Lance formation of 



Wyoming. By Charles W. Gilmore. Pp. 641-646, 4 pis. May 31, 1916. 



2138. Description of three species of crabs (Osachila) from the eastern coast of North 



America. By Mary J. Rathbun. Pp. 647-652, 1 pi. May 31, 1916. 



Volume 51 



Proceedings of the United States National Museum, vol. 51. Pp. i-xii (title page, 

 advertisement, table of contents, and list of illustrations) ; pp. 1-662 (Proceed- 

 ings papers 2139-2172) ; pp. 663-676 (index) ; 25 figs., 121 pis. 1917. 



2139. Descriptions of new Lepidoptera from Mexico. By Harrison G. Dyar. Pp. 1-37. 



Oct. 16, 1916. 



2140. Descriptions of miscellaneous North American chalcidoid Hymenoptera of the 



family Eulophidae. By A. A. Girault. Pp. 39-52. Oct. 16, 1916. 



2141. Some Diptera (Microdon) from nests of ants. By T. D. A. Cockerell and 



Hazel Andrews. Pp. 53-56, 2 figs. Oct. 16, 1916. 



2142. On the geographical forms of the Philippine elegant titmouse, Pardaliparus 



elegans (Lesson), with descriptions of three new subspecies. By Edgar 

 Alexander Mearns. Pp. 57-65. Oct. 16, 1916. 



2143. Report on Arachnida collected by Messrs. Curie, Caudell, and Dyar in British 



Columbia. By Nathan Banks. Pp. 67-72. Oct. 16, 1916. 



2144. New brachiopods of the genus Spirifer from the Silurian of Maine. By Henry 



Shaler Williams. Pp. 73-80, 1 pi. Dec. 16, 1916. 



2145. Notes on alunite, psiloraelanite, and titanite. By Edgar T. Wherry. Pp. 81-88. 



Oct. 16, 1916. 



2146. Some American fossil insects. By T. D. A. Cockerell. Pp. 89-106, 9 figs., 



1 pi. Oct. 16, 1916. 



2147. Descriptions of two extinct mammals of the order Xenarthra from the Pleisto- 



cene of Texas. By Oliver P. Hay. Pp. 107-123, 5 pis. Oct. 28, 1916. 



2148. New North American Hymenoptera of the family Eulophidae. By A. A. 



Girault. Pp. 125-133. Oct. 28, 1916. 



2149. Report on the Japanese macrouroid fishes collected b)' the United States Fish- 



eries steamer Albatross in 1906, with a synopsis of the genera. By Charles 

 Henry Gilbert and Carl L. Hubbs. Pp. 135-214, 4 pis. Oct. 28, 1916. 



2150. New and little-known heteropterous Hemiptera in the United States National 



Museum. By E. Bergroth. Pp. 215-239. Oct. 28, 1916. 



2151. A review of the fossil plants in the United States National Museum from the 



Florissant lake beds at Florissant, Colorado, with descriptions of new species 

 and list of type-specimens. By F. H. Knowlton. Pp. 241-297, 16 pis. Nov. 

 24, 1916. 



2152. New genera and species of muscoid flies. By Charles H. T. Townsend. Pp. 



299-323. Oct. 28, 1916. 



2153. A recently-found iron meteorite from Cookeville, Putnam County, Tennessee. 



By George P. Merrill. Fp. 325-326, 1 pi. Nov. 24, 1916. 



2154. Two new fossil plants from the Triassic of Pennsylvania. By Edgar T. 



Wherry. Pp. 327-329, 2 pis. Nov. 24, 1916. 



2155. Two new land shells from the western States. By Paul Bartsch. Pp. 331- 



333, 1 pi. Nov. 24, 1916. 



