NOKTII AMKltUAN DIPTKRA. 293 



(liiial vein, well beyond the end of tlie auxiliary vein. Front 

 jirominent, face receding. If the scales of the tegnhe are of 

 equal size, the genus would lead in the synopsis to Schmwmyza 

 Hal. If, as is more probable, the tegular scales are unequal, it 

 would fall with Citnosla s. str. I do not consider, however, that 

 Walker's reference of North American species to this and the 

 preceding genus is any proof of the occurrence of these genera 

 in North America. 



Trichopiicm Rdi.— Bigot refers a ^Mexican species here (Ann. Soc 

 Ent. Fr. 1885, 282). 



/Vo6oseic/omt/m Bigot, Bull. Soc. Ent. Fr. 1888, 35,(1883); Ann. 

 Soc. Ent. Fr. 1885, 260.— This genus is erected for a species 

 from the Rocky Mountains. The important characters, quoted 

 from Bigot's description are : Front of % narrow, eyes not 

 contiguous; paljM filiform; proboscis straight, slender, rigid, 

 bifid at the apex, bent backward, reaching below to the end of 

 the abdomen. If this is an Anthomyiid, the wonderful char- 

 acter of the proboscis will at once distinguish it from all the 

 other genera. It would approach, in this character, the genus 

 Drymela. 



Dr. Meade f Annot. list Brit. Anthomyiidre, Ent. Mo. Mag. xviii, p. 

 1) has given a figure of the Anthomyiid venation, in which he 

 calls the second branch of the first longitudinal vein the aux- 

 iliary vein. In the jjresent synopsis I have followed Loew in 

 calling i\\e first branch the auxiliary vein. This vein must not 

 be confounded with the axillary vein, which is situated inside 

 of the anal (sixth longitudinal) vein. Dr. Meade also desig- 

 nates the tegulai (calyjiterse) as alulae. The alula (alulet) is 

 usually understood to be the curved flap-like extension of the 

 wing inside of the anal or axillary angle. 



ADDENDUM. 



Pegomyia K. D., Myod. 598, is omitted from the synopsis. Dr. 

 Lintner has bred an American species {F.vichui Lint. 1st Ann. 

 Kep. Ins. N. Y. 209) from larvie found mining beet leaves. 

 The genus would come next Chortophila in the synopsis, from 

 which it is distinguisheil by the legs being wholly or in part 

 yellow The generic determination of Dr. I>intner's species 

 was evidently made by Dr. Meade. 



TKANS. AM. ENT. SOC. XIX. DECEMBKK. 189l^ 



