204 NEW YORK STATE MUSEUM 



lead us to believe that they may live in galls (possibly as inquilines). 

 The larvae of certain species are extremely interesting biologically, 

 since they reproduce by pedogenesis and are, moreover, very amen- 

 able to laboratory conditions. 



Key to genera 



a Metatarsus longer than the second segment 

 b Tarsi quadriarticulate 

 c Three long veins 



d Palpi quadriarticulate (amber) Meunieria Kieff.' 



dd Palpi triarticulate Palaeospaniocera Meun. 



ddd Palpi biarticulate Miastor Mein. 



cc One long vein, wings very narrow Neostenoptera Meun. 



bb Tarsi triarticulate, 2 long veins 



c Antennal segments cylindric Heteropeza Winn. 2 



cc Antennal segments globose (amber) Monodicrana H. Lw. 1 



aa Metatarsus shorter than the 2d segment 

 b Tarsi quinquearticulate 

 c Wing membrane finely haired 



d Third vein extending to the apex of the wing 



e Palpi biarticulate Frirenia Kieff . 



/ Fifth vein forked Haplusia Karsch 



ff Fifth vein simple Johnsonomyia Felt 3 



ee Palpi triarticulate, wings acuminate Meinertomyia Felt 



eee Palpi uniarticulate, wings acute apically Leptosyna Kieff. 



dd Third vein not extending to the apex of the wing 



e Palpi biarticulate Frirenia Kieff. 



ee Palpi triarticulate Epimyia Felt 



cc Wing membrane scaled 



d Fifth vein forked, palpi quadriarticulate (amber) 



Ledomyiella Meun. 

 dd Fifth vein simple 



e Four simple long veins, palpi biarticulate, antennal segments 



stemmed in the female Kronomyia Felt 



ee Three simple long veins, palpi triarticulate 



Brachyneura Rond. (Spaniocera Winn.) 

 bb Tarsi biarticulate Oligarces Mein. 



1 Location provisional. 



2 Messrs Kunstler and Chaine in Comptes Rendus Hebdomadaires des 

 Seances et Memoires de la Societe de Biologie, 1902, v. 54, p. 535, give 

 the characters of a form reared from bananas as follows : Tarsi biarticu- 

 late, the first segment longer than the second ; wings with two or three 

 long veins, the two first branched ; palpi quadriarticulate. It was referred 

 to the Heteropezinae, though no name was proposed and is presumably 

 related to Heteropeza Winn, and Monodicrana H. Lw. 



3 The Australian Necrophlebia Skuse and Chastomera Skuse are appar- 

 ently closely related to this American genus and are provisionally associated 

 therewith. 



