Curran, Charles Howard, 1894-1972.2005-10-062005-10-061930http://hdl.handle.net/2246/436314 p. ; 24 cm.1525750 bytesapplication/pdfen-USQL1 .A436 no.405, 1930ToxomerusSyrphidae -- AmericaInsects -- AmericaNew Diptera belonging to the genus Mesogramma Loew (Syrphidae). American Museum novitates ; no. 405text