DIPTERA 
gg. Either Sc^ is present or the siibcosia does not end 
in the cost a. 
h. Sc 2 is placed noticeably proximad of the small 
cell and the siibcosta curved toward the costa. 
i. Small cell (R , ) three or more times as long as 
broad; ocelli three, arranged in a transverse 
line; wings hairy (PI. 4, Fig. 3) 
ii. Small cell shorter than broad. 
]. Cubitus forks distad of the R-M crossvein ; 
eyes ovate; middle ocellus not much smaller 
than the laterals (PI, 4, Fig. 4) . . 
jj. Cubitus forks under or proximad of the 
R-M crossvein (PI. 4, Fig. 5) fossil . 
hh. Sc^ is placed on the small cell, or if not, thoi 
Scj ends in R^ or with its end free. 
i. much curved and often undulate; cell 
R, very small; subcosta with its end free, or 
ends in the costa beyond small cell; ocelli 
ihfee, the middle one only Utile smaller than 
the laterals {P\. 4-, Fig. 6, 9) . . . 
ii. R^+s straight or gently arched, and otherivise 
not as above. 
j. Fossil genus from amber; cell R, is V or 
Y-shaped (PI. 4, Fig. 13) ... 
jj. Small cell R, rectangular or trapezoidal. 
k. Three ocelli, ividely separated, middle 
one but little smaller than the laterals. 
I. Subcostal vein ends in Rj, apex of 
middle femur without a stout spine 
(PI. 4, Fig. 7) 
II. Subcosta ends in the costa, apex of 
middle femur of male ivith a stout 
spine (PI. I, Fig. 20; PI. 4, 
Fig. 8) 
kk. Ocelli close together, middle one if 
present very minute ( PI . I , Fig. 1 8 ; 
PI. 4, Fig. 10,11,12) [Scio- 
philuo/IF/z/w^r/ir-f Neoempheria]. 
I. Wings hyaline, costa not produced 
II. Wings banded, costa usually produced 
11. Genus Par\tinia, Mik. 
12. Genus Empalia, Winnertz. 
1 3. Genus Pal^oempalia, Meunier. 
14. Genus Polylepta, Winnertz. 
1 5. Genus Loewiei.la, Meunier. 
16. Genus Dziedzickia, nom nov. 
17. Genus Di(/monus, Walker. 
18. Genus Mycomya, Rondani. 
Subgenus Mycomya, Rondani. 
Subgenus Neoempheria, Osten Sacken 
I. Genus MONOCLONA, Mik 
Monoclona. Mik, Wien. Ent. Zeit. Vol. 5, p. 279 (i5) (1886). 
Stsegeria. Van der Wulp, Tijdsclir. v. Ent. Vol. ig, versl. 49 (1876). 
