TABLE OF CONTENTS 



Article 



.Alexander, Charles P. New species of two-winged flies 

 from western North America belonging to the family Tipu- 



lidae. No. 2500, pp. 1-16. March 11, 1924 * 10 



New species: Ormosia decussata, 0. curvata, O. proxima, O. fus- 

 copyga, Erioptera aldrichi, E. alaskensis, E. {Erioptera} dyari, 

 E. {E.) dilatata, E. {Gonempeda) hurra, Gonomyia {Gonomyia) 

 poUocephala, Rhabdomastix (Sacandaga) borealis, Limnophila 

 euxesta, L. rubida, L. occidens, Pilaria microcera, Tricyphona 

 rainieria, Rhaphidolabis (Rhaphidolabis) stigma, Tipulaperexigua. 

 New subgenus: Gonempeda. 

 New subspecies: Limnophila (Neolimnophila) ultima alaskana. 



Argo, Naomi George. (See Melander, A. L.) 11 



BoviNG, Adam G. (See Parker, J. B.) 23 



CocKERELL, T. D. A. Fossil insects in the United States 



National Musemii. No. 2503, pp. 1-15. February 2, 1924 ^ . 13 



New genera: Dinopanorpa, Amagua, Eophlebomyia, Epallagites. 



New species: Dinopanorpa megarche, Amagua fortis, Eophlebo- 

 myia claripennis, Acnemia cyclosoma, Plecia rhodopterina, Cyt- 

 taromyia reclusa, Syrphus eocenicus, Epallagites avus, Amasis 

 byrami, Mordella priscula, Liny phiabyr ami, Calosomafernquisti. 



CusHMAN, R. A. New genera and species of Ichneumon-flies. 



No. 2494, pp. 1-16. January 12, 1924 1 4 



New genera: Arachnoleter, Anurotropus. 



New species: Chrysopoctonus bicolor, Arachnoleter swezeyi, Anuro- 

 tropus minutus, Cryptoideus bituminosus, C. anthracinus, Spilo- 

 cryptus cimbcivorus, Odontomerus stejnegeri, Hyposoter rubigino- 

 sus, E-chthronomas ochreofrons, Xiphosomella stenomae, Paniscus 

 rugosus. 



■ . On the genera of the Ichneumon-flies of the tribe 



Paniscini Ashmead, with descriptions and discussion of re- 

 lated genera and species. No. 2510, pp. 1-48. May9,1924i. 20 



New genera: Neoprotarchus, Hypopheltes, Nephopheltes. 



New species: Cidaphus occidentalis, C. australis, Protarchoides 

 mandibularis, Neoprotarchus ater, Hypopheltes pergae, Opheltes 

 major, Nephopheltes japonicus, Absyrtus arealis, A. perilissoides, 

 Paniscus pulcher, P. trituberculatus, P. brevicornis, P. caviverti- 

 calis, P. clypeatus, P. temporalis, P. pardalis, P. spinipes, P. 

 neomexicanus, P. unguicularis, P. cocker elli, P. calif ornicus, P. 

 arizonensis, P. leo, P. pollens, P. townsendi, Parabates smithi, 

 P. cristatoides, P. crassus, P. exsertus. 



New name: Enderleinia. 



New varieties: Opheltes glaucopterus, var. barberi, Paniscus ocellatus, 

 var. microcellatus, P pollens, var. barberi, P. geminatus, var. sayi. 



> Date of publication 



