AUTHORITIES. XV 



, antehac seorsim editse, nunc collectse et auctse. 7 vols. Cum 

 tab. a?n. 1749-1769. 



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

 5th. vol. of the Linnrea Entomologica. Stettin, 1851.) 



General 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. 

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

 inologische Zeitung. Stettin, 1846.) 



Several American species mentioned ; no new ones described. 

 " Helophilus. (In the 6th vol. of the Eiitomologische 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. 



" Uber Tetanocera stictica, Fab., und ihre nachsteu 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. 



" Bemerkungeu iiber die Familie der Asiliden, etc. in 4to. Berlin, 

 1850. 



Dasypogon anthracinus, n. sp. from Mexico. 



" Ceria. (In the Neue Beitriige zur Keuntuiss 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.) 



