TABLE OF CONTENTS. 



Page. 



RoHWER, S. A. Descriptions of twenty-five new species of 

 North American Hymenoptera. Na 2312. June 16, 1920 ^_ 209-231 



New species : Itycorsia zapped, P&riclista plesia P. pecanivora, 

 Pteronidea melanostoma, P. alnivora, P. mendicana, P. amel- 

 mwhieridis, P. plesia, Amauronematus whitney, Pachyne- 

 matus bouldei'ensis, Pristipliora, betulavora, Hexaplasta 

 lucida,, lAssonota evetriae, L. dioryctriae, L. conocola, Exochus 

 (TricHstus) evetriae, Mesoleius gymnonychi, Exenterus affinis, 

 E. nigrifrons, Cardochiles therheriae, Microtypus dioryctriae, 

 Pedinaspis (PsortMspis) portiae, Diodontus carusanigrens, 

 Trypoxylon plesium, Cerceris raui. 



New name: Arge mocsaryi. 



. The North American Ichneumon-flies of the 



tribes Labenini, Rhyssini, Xoridini, Odontomerini, and 

 Phytodietini. No. 2317. June 19, 1920 ^ 405-474 



New genera : Labenidea, Rhyssella. 



New species : Labena nigra, L. tinctipetmis, L. confusa, Rhyasa 



hoferi, Aplomerus buprestivorus, A, foutsi, Phytodietus 



facialis, P. parvus, P. plesia. 

 New variety. Labena confusa (van), minor. 

 New name: Xorides harringtoni. 



Three new species of Indian Drynnid parasites 



of rice leaf -hoppers. No. 2309. June 16, 1920^ 159-161 



New species : Digonatopus lucidus, Haplogonatopus orientalis, 

 Pseudogonatopus sogatea. 



. See under Cushman, R. A 379-396 



. See under Cushman, R. A 503-523 



Sasaki, Madoka, Report of Cephalopods collected during 

 1906 by the United States Bureau of Fisheries steamer 

 Albatross in the Northwestern Pacific. No. 2310. Sep- 

 tember 3, 1920 1 163-203 



New genera : Watasella, Gon<jtopsis. 



New species : Watsell.a nigra, Stauroteiithis albatrossi. Polypus 

 glaber, P. abruptus, P. ochotensis, P. tsugarensis, P. puatu- 

 losus, P. spinosus, P. yendoi, P. alatus, P. tenuiptilvinus, P. 

 salebrosus, P. validus, Rossia moUioeUa, R. bipapillata. 

 Sepia carinata, Gonatopsis octopedatus, Crystalloteuthis 

 heringiana. 



New varieties : Polypus macropus, var. inmor. Sepia kobiensis 

 var. albatrossi. 



New names: Eledonellidae, Chunella. 



ScHAUs, William. New species of lepidoptera in the 

 United States National Museum. No. 2307. June 15, 

 1920 ^ 107-152 



New genera : Prestonia, Pernambis. 



New species : Pedaliodes niaria, Eueides asidia, Patiara elegans, 

 Prestonia clarki, Pieris kuschei, Isanthrene illegitima, I. 



^ Date of paUlcfttloB. 



