AUTHORITIES. XV 



nicre, auteliac seorsim editse, nunc collectse et auctse. 7 vols. Cum 

 ,tab. sen. 1749-1769. 

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

 5th vol. of the Linnsea 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. 

 " Bemerkungen iib. die Cattung 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. 

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

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

 Tet. Jiavescens, 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 genitalis, bulbirosiris, 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 synonyniical re- 

 marks iipon several American species ; no new ones described. 

 Dipterologische Notizen. Neue Americanische Dolichopoden. (In 

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

 1857.) 



Lyroneuncs ccerulescens from Mexico, and Plagioneurus univittatus 

 from Cuba, new genera and species. 

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

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



