\'ol. xxii] KXTOMor.ocicAi. M.w.s. 35,^ 



so cIdscIv with I.i)c\v's detailed description (as Claditra fusciila, 

 i'.eschr. Hiirop. Dipt. Ill, p. Ci.S), (hat it must he referred to 

 soiilis until a comparison with European siiccimens iiroves it 

 otherwise. 



The fly is very common in l''uhon County, New York, in 

 late summer and early autumn, and witii the e\cei)tion of the 

 all-predominant Cladnra flavofemujinca ( ). S., is the most 

 common Amphinomhie (Limnobine) at this season. 



The venation, as shown by figure 4, is, in general, similar 

 tn a Phylidorca (Liinnophila), but Sc^ is longer than in any 

 of the species of this genus in Eastern America, at least. All of 

 the distal cells possess long prominent hairs on the membrane. 

 These hairs occur all over cells 2nd R\ R-, R^. R^, I\P, M-, 



AP, C"u\ a few in cell 2nd M- (discal cell of authors), and 

 a few on the extreme distal edge of cells Cu, R and 5V'. There 

 is never any of this hairiness on the proximal half of the wing 

 as in Ulomorplia and the character of the hair is dilTerent in 

 the two genera. 



.Idclf'homyia senilis might be mistaken for a small Phyli- 

 dorca, but it is smaller than any of the described Eastern spe- 

 cies. From Ulomorplia, it readily sejiarates by its smaller size, 

 presence of cell M' and characters mentioned above. 



In Fulton County, New York, the species is well distributed, 

 as follows: 



(i) Woodworth's Lake; alt. i(>C)^ ft.; Aug. 21, 22, '09; Aug. 

 22, 1910. 



(2) Sport Is. ; Sacandaga R. : alt. 750 ft. ; one only, Aug. 24, 

 1910. 



