FAM. MYCETOPHILIDiE 
53 
g. Media simple. 
h. Sc 2 {subcostal crossvein) wanting {P\. A- , Fig. 22). lo. Genus Aphelomera, Skuse. 
hh. Sc 2 present (PI. 4, Fig. 23) ii. Genus Trizygia, Skuse. 
gg. Anterior branch of the media as well that of the 
cubitus disconnected at the base. 
h. Sc^ [subcostal crossvein) wanting {P\. 4, Fig. 24). 12. Genus RoNDANiELLA(=L«za,Winnertz). 
hh. SCsprcsent (PI. 4, Fig. 25) i3. Genus Ateleia, Skuse. 
ff. Subcostal vein very short, anterior branch of the cubitus 
free at the base. 
g. Media forked (PI. 4, Fig. 26) 14. Genus Paradoxa, Marshall. 
gg. Media simple (PI. 4, Fig. 27) i5. Genus Cycloneura, Marshall. 
dd. Both media and cubitus forked, but the immediate base of 
the anterior branch of one of them may be obliterated. 
e. Abdomen very long and slender, much longer than the 
wings, base of radial sector noticeably longer than the 
crossvein; petiole of the media nearly as long as the fork; 
casta not produced beyond the tip of radial sector (PI. 4, 
Fig. 28). Fossil 16. Genus Arch^boletina, Meunier. 
ee. Abdomen not unusually long, or otherwise dijferent. 
f . Subcostal vein ends in the casta and is at least half as long 
as the basal cell R. 
g. Basal section of tlie anterior branch of media wanting. 
h. [subcostal crossvein] present; casta produced beyond 
the tip of the radial sector (PI. 4, Fig. 29) . 17. Genus Neuratelia, [— Anaclinia] , 
hh. Sc^ absent. [Rondani. 
i. Costa much prolonged beyond the tip of the radial 
sector ; cubitus forks far distad af base of radial 
sector; basal cell [R) short (PI. 4, Fig. 30). 
Fossil 18. Genus Anaclileia, Meunier. 
ii. Costa not produced beyond the radial sector. 
j. Recent form; three ocelli (PI. 5, Fig. 1 ) . . 19. Genus Odontopoda, Aldrich. 
jj. Fossil farm; synonym of the above (PI. 5, 
Fig. 2) Genus Proanaclinia. 
gg. Basal section af anterior branch of media present. 
h. SCi [subcostal crossvein) present. 
i. Cubitus forks under or proximad of fork af media. 
j. Basal section of the radial sector many times 
longer than the R-M crossvein, cubitus forks at 
the base of the wing (PI. 5, Fig. 3) . . . 20. Genus Allactoneura, de Meijere. 
jj. Basal section of the radial sector but little if any 
longer than the R-M crossvein. 
k. Base of the fork af the cubitus over twice the 
length of the R-M crossvein distad of the * 
distal end af this crossvein and nearly under 
the fork of the media (PI. 5, Fig. 4) . . 21. Genus Proboletina, Meunier. 
kk. Base of the fork of the cubitus but little if any 
