VIII PROCEEDINGS OF THE NATIONAL MUSEUM 



Article 



MuESEBECK, C. F. W. Descriptions of a new genus and eight 

 new species of ichneumon-flies, with taxonomic notes. No. 

 2882, pp. 1-16. August 14, 1931 1 16 



New genus: Paroligoneurus. 



New species: Apanteles paralechiae, A. depressariae, A. schaffneri, 

 A. halisidotae, A. cingiliae, Paroligoneurus johnsoni, Micro- 

 bracon rhyacioniae, M. cryptorhynchi. 



New names: Opius gahani, 0. walkeri, Helorimorpha enderleini. 



New combinations: Microgaster fortipes (Cameron), Microplitis 

 testaceipes (Cameron), Apanteles latiannulatus (Cameron), 

 Snellenius philippinensis (Ashmead), Opius juscipennis (Szep- 

 ligeti), 0. fulvus (Brues), Rogas macropodides (Walker), Yeli- 

 cones crassitarsis (Cameron). 



Price, Emmett W. Four new species of trematode worms 

 from the muskrat. Ondatra zibethica, with a key to the tre- 

 matode parasites of the muskrat. No. 2870, pp. 1-13. 

 July 10, 1931 ' 4 



New species: Psilostomum ondatrae, Echinochasmus schwartzi, 

 Urotrema shillingeri, Paramonostomum pseudalveatum. 



. A new species of trematode of the family Hetero- 



phyidae, with a note on the genus Apophallus and related 



genera. No. 2883, pp. 1-6. September 21, 1931 ^ 17 



New species: Apophallus crami. 



Reinhard, H. J. The two-winged flies belonging to Siphos- 

 turmia and allied genera, with descriptions of two new 

 species. No. 2877, pp. 1-11. July 30, 1931 ^ 11 



New species: Siphosturmia confusa, Siphosturmiopsis melampyga. 



. Revision of the American parasitic flies belong- 

 ing to the genus Winthemia. No. 2886, pp. 1-54. Novem- 

 ber 24, 1931 ' 20 



New species: Winthemia tibialis, W. duplicata, W. texana, W. 

 polita, W. occidentis, W. sinuata, W. borealis, W. intonsa, W. 

 cecropiae, W. montana, W. mima, W. singularis, W. imitator, W. 

 intermedia, W. bicolor, W. signaia. 



Resser, Charles Elmer. A new Middle Cambrian mero- 

 stome crustacean. No. 2899, pp. 1-4. December 30, 1931L 33 



New genus: Beckwithia. 



New species : Beckwithia typa, Obelus johni. 



RuEDEMANN, RuDOLF, Somc ncw Middle Cambrian fossils 

 from British Columbia. No. 2893, pp. 1-18. November 

 27, 1931 ' 27 



New genera: Dictyophycus, Marria. 



New species: Dictyophycus gracilis, Chaunograptus scandens, 

 Marria walcotti. 



1 Date of publication. 



