AUTHORITIES. XT 



, anteliac seorsim editae, nunc collects et auctse. 7 vols. Cum 

 tab. sen. 1749-1769. 



LOEW, Dr. H. Beschreibung einiger neuen Tipularia terricola. (In the 

 5th vol. of the Linnsea Entomologiea. Stettin, 1851.) 



Oeneral observations on the American genera : Ptilogyna, Aporosa 

 and Toxorhina, and the descriptions of three new species Ap. rufes- 

 cens, virescens, and Tox. fragilis, from the West Indies. 

 " Bemerkungen lib. die Gattung Beris. (In the 6th vol. of the Ento- 

 mologische Zeitung. Stettin, 1846.) 



Several American species mentioned ; no new ones described. 

 " Helophilus. (In the 6th vol. of the Entomologische Zeitung. Stet- 

 tin, 1846.) 



Monograph of the genus, mentioning some American species ; H. 

 glacialis, n> sp. from Labrador. 

 " Chauna, genus novum. (1. c. 7th vol. p. 370. Stettin, 1847.) 



Chauna variabilis, n. sp. from Cuba. 



" Tiber Tetanocera stictica, Fab., und ihre nachsten Verwandten, etc. 

 (1. c. 7th vol. p. 114. Stettin, 1847.) 

 Tet. Jlavescens, n. sp. from Carolina. 



" Uber Tetanocera ferruginea, Meig. und die ihr verwandten Arten. 

 (1. c. 7th vol. p. 194.) 



Tet. plumosa, n. sp. from Sitkha. 



" Bemerkungen uber die Familie der Asiliden, etc. in 4to. Berlin, 

 1850. 



Dasypogon anthracinus, n. sp. from Mexico. 



" Ceria. (In the Neue Beitrage zur Kenntniss der Dipteren, by Dr. 

 Loew. Erster Beitrag. Berlin, 1853.) 



Monograph of the genus ; Ceria pictula from the U. St. ; C. arietis 

 and signifera, from Mexico, are new. 

 " Conops. (1. c.) 



Monographical Essai. Conops genualis, bulbirostris, and casta- 

 noptera, n. sp. from the U. States. 

 " Neue Diptern (1. c. Zweiter Beitrag. Berlin, 1854). 



Among these diptera is Pyrgota millepunctata, n. sp. from North 

 America. 

 " Bombylius. (1. c. Dritter Beitrag. Berlin, 1855.) 



Monograph of the genus, containing important synonymical re- 

 marks upon several American species ; no new ones described. 

 Dipterologische Notizen. Neue Americanische Dolichopoden. (In 

 the Wiener Entomologische Monatsschrift, vol. i. p. 37. Vienna, 

 1857.) 



Lyroneurus ccerulescens from Mexico, and Plagioneurus univittatus 

 from Cuba, new genera and species. 



MACQUART, J. Histoire Naturelle des Dipteres. 2 vols. Paris, 1834-35. 

 (Forms a part of the Suites a Buffon, published by Roret.) 



