52 Journal Xew York Entomological Society. [Vol. xix. 



shorter than the slender claws, which latter are strongly bent at the 

 apical fourth; basal and distal stems of the fifth antennal segment 

 with a length one half and twice their diameters, respectively. \\'ings 

 remarkably long and slender. Europe. 



Genus TRICONTARINIA Kieff. 1910, type T. cUiaiipcnuis Kieff. 

 Wings, antenUce and genitalia as in Contarinia; palpi triarticulate. 

 Location provisional. Asia. 



Genus MYRICOMYIA Kieff. 1900, type Diplosis mediterranea F. Lw. 



Se])arated from the four preceding genera by the biarticulate 

 palpi; basal and distal stems of the fifth antennal segment with a 

 length one and one half and two and one half times their diameters, 

 respectivelv ; claws simple, strongly curved, the pulvilli twice the 

 length of the claws; ovipositor short. Europe. 



Group Trifili. 

 This group is easily recognized by the presence of three usually 

 well-developed circumfili on the flagellate antennal segments of the 

 male, the nodes generally being unecpial and in some extreme forms 

 the distal enlargement is almost divided. 



Genus STOMATOSEMA Kieff. 1904, type S. ncmontm Kieff. 



Antennal segments 15, the filth with a stem one fourth the length 

 of the cylindric basal enlargement ; ])alpi quadriarticulate ; claws uni- 

 dentate, strongly curved, the pulvilli small, ovipositor short. Distin- 

 guished from other forms by the greatly produced mouth-parts, the 

 latter with a length one half that of the head, tapering. Europe. 

 Genus RESSELIELLA Seitn. 1906, type R. picecc Seitn. 



Distinguished from the preceding by the mouth-parts not being 

 produced. The lobes of the dorsal and ventral plate of the male are 

 truncate, the ovipositor is short with one long, narrow, oval lobe. 

 Europe. 



Genus GEODIPLOSIS Kieff. 1909, type G. ranunculi Kieff. 

 Separated from the American species provisionally referred to 

 Dicrodiplosis Kieff. by the triangular lobes of the dorsal plate and 

 the linear parallel lobes of the ventral plate. The ovipositor is rather 

 short. Europe. 



Genus CALODIPLOSIS Tav. 1908, type C. parinarii Tav. 

 Allied to Dicrodiplosis Kieff. and separated from Gcodiplosis 



