TABLE OF CONTENTS 



Page 



Malloch, J. R. Notes on American two-winged flies of 

 the family Sapromyzidae. No. 2744, pp. 1-18, June 23, 

 1928' 23 



New genera: Freyia, Pseudocalliope. 



New species: Deutominettia approximata, D. bimaculata, Asilos- 

 toma palpalis, A. palUpes, A. atriceps, A. flavifacies, Freyia 

 nigrita, Minettia nigropunctata, M. argentiventris , M. infuscata, 

 M. tucumanensis, M. quadrata, M. brunneicosta, M. verticalis, 

 Sapromyza schwarzi. 



Merrill, George P. Concerning the origin of the metal in 



meteorites. No. 2742, pp. 1-7, June 20, 1928' 21 



Price, Emmett W. New helminth parasites from Central 



American mammals. No. 2725, pp. 1-7. March 30, 1928 L 4 



New genera: Bradypostrongylus, Controrchis. 



New species: Bradypostrongylus panamensis, Graphidium broivni, 

 Controrchis biliophilus. 



Rathbun, Mary J. Two new crabs from the Eocene of Texas. 



No. 2727, pp. 1-6. April 3, 1928' 6 



New species: Notosceles bournei, Harpadocarcinus americanus. 



ScHAUS, William. New moths of the family Ceruridae 

 (Notodontidae) in the United States National Museum. 

 No. 2740, pp. 1-90. June 27, 1928' 19 



New genera: Dugonia, Rhapigia. 



New species: Nystalea biumbrata, N. easlmani, N. julitha, N. par- 

 soni, N. amatura, Elymiotis corana, E. morana, E. lupicina, E. 

 donatian, E. boisil, Proelymiotis severina, Lysana minasensis, 

 Marthula thoreda, M. cynrica, Eudmoe carriela, Lepasta branda, 

 Dasylophia blaizea, Farigia liboria, F. luicana, F. thelian, F. 

 alicia, F. sennen, Cerura purusa, Peroara caterina, Psilacron con- 

 galla, P. gordiana, Urgedra oslaca, U. nabora, Dicentria fechima, 

 Schizura Salvador, Litodonta centigerna, Notoplusia marchiana, 

 N. talmecana, Misogada brioca, Trumanda schiffi, Disphragis 

 cliiiusa, D. epimacha, D. marusa, D. arima, D. sabaria, D. hygi- 

 nia, D. druona, D. caranlis, D. agapa, D. psalmoida, Hemipec- 

 ieros teffeina, Malocampa medommoca, M. mammerta, M. ran- 

 dauta, M. bronacha, Rhuda decepta, Gisara meyeri, G. brewsieri, 

 G. brauni, G. metcalfi, Boriza ignatia, Talmeca dabuisa, T. aga- 

 thosa, Chadisra paragorna, C. finiana, C. ulrica, C. ezrana, C. 

 celsa, C. emeteria, Meragisa salvina, M. vistara, M. simeona, M 

 euihymia, M. mochosema, M. polycarpa, Dugonia eliera, Euxoga 

 amatura, Rifargia haitia, R. auscharia, R. possida, R. everiti, 

 Afilia venadia, A. purulha, Lusura turnina, Lobeza petropolia, L. 

 gilberta, L. huacamaya, L. maronia, L. venica, L. rhenia, L. 

 medina, L. arnoula, L. genebrarda, L. abdjesa, L. gunthierna, 

 Eunotela chacoa, Apela archimma, Dotlia boliviata, Pamcaloma 

 abba, Hemiceras ursara, H. liboria, H. turiafa, H. climaca, H. 

 joinvillia, H. chromona, H. teffea, H. iaperinha, H. reyburni, H. 



1 Date of publication. 



