VI TABLE OF CONTENTS. 



Paine, John Howard. An asymmetrical bird-louse found Page, 

 on three different species of troupials. No. 2201. June 

 1, 1917^ 231-232 



Rathbun, Mary J. Description of a new species of crab 

 from the California Pliocene. No. 2214. August 15, 

 1917 1 451-452 



New species: Cancer urbanus. 



Richmond, Charles W. Generic names applied to birds 

 during the years 1906 to 1915, inclusive, with additions 

 and corrections to Waterhouse's "Index Generum 

 Avium." No. 2221. August 16, 1917 ^ 565-636 



RoHWER, S. A. Descriptions of thirty-one new species of 



hymenoptera. No. 2195. June 5, 1917 ^ 151-176 



New species: Macrophya castaneae, Eriocampoides castaneae, Peri- 

 clista californica, P. hicoriae, P. similaris, P. xanthognatha, Acor- 

 dulecera hicoriae, Pristaulacus strangaliae, Odontomerus stranga- 

 liae, Pyracmon conocola, Angitia milleri, A. tineavora, IfeleboriLS 

 laspeyresiae, Phadroctonus argyresthiae, Cosmophoms pityophthori, 

 Diospilus washingtonensis , D. californicus, D. neoclyti, Phanero- 

 toma erythrocephala, Macroneura urichii, Odontobracon oemeovonu, 

 0. elaphidiovonis, 0. californicus, Polygnotus burkei, Trigonura 

 californica, Etisandalum acmaeorerae, Tachysphex washingtoni, 

 Larropsis greenei, Xylocelia beulahensis, X. virginiana, Nysson 

 (Hyponysson) raui. 



New variety: Emphytus mellipes, var. albolabris. 



New names: Tenthredella birmensis, Cry plus kolbelei. 



A report on a collection of hymenoptera (mostly 



from California) made by W. M. Giffard. No. 2202. May 



28, 1917^ -1 233-249 



New species: Craterocerus californicus, Andstrocerus tahoensis, A. 

 lucMus, Odynerus blandinus, 0. giffardi, 0. robustiis, 0. eldoraden- 

 sis, Aporiiullus californicus, Solenius (Hypocrabro) giffardi, Tachy- 

 sphex giffardi, T. eldoradensis, T. plesia, Cremonus giffardi, Silaon 

 major, Nysson {Brachystegus) pacificus. 



and Margaret Fagan. The type-species of the 



genera of the Cynipoidea, or the gall wasps and parasitic 

 Cynipoids. No. 2208. June6, 1917^ 357-380 



New genera: Adleria, Aglaotomiden . Diholocynips, Kleidotomidea, 



Trisoleniella (new names). 

 New species: Trirhoptrasema ashraeadi (new name). 



Shufeldt, R. W. Fossil remains of what appears to be a 

 passerine bird from the Florissant shales of Colorado. 

 No. 2215. August 15, 1917 1 453-455 



> Date of publication. 



