FAM. MYCETOPHILID^ 
i3 
fliivicans, Ruthe, Isis, Vol. ii, p. 1211 (i83i). 
Wintliemi, Macquart, Suites a Buffon, Vol. i, p. 147, pi. 3, f. i5, 16 (il/<;- 
croneura) (1834). 
— D. flavicans, Ruthe = feryuginosa, Meigen. 
3. D. parallela, Loew (fossil), Bernstein Fauna, p. 35 (i85o). Prussian amber. 
paraUela, Giebel, Ins. d. Vorwelt, p. 238 (i856). 
4. D. terricola, Scudder (fossil), Bull. U. S. Geol. Sur. terr. Vol. 4, p. ySo West United States. 
(1878) (May be Myceiobia). 
5. D. valida, Mik, Verb. Zool.-bot. Ges. Wien, Vol. 24, p. 329 (i), pi. 7, Europe. 
f. I (1874). 
— D. Winikemi, Macquart = ferruginosa. Meigen. 
5. SUBFAM. CEROPLATIN/E 
Ceroplatinse. Winnertz, Verb. Zool.-bot. Ges. Wien., Vol. i3, p. 684 (i863). 
Characters. — Tbe primary distinction possessed by the members of this subfamily is found 
in the wing venation. The R-M crossvein is obliterated by the coalescence of a section of the basal 
portion of the radius and media at the point where the crossvein usually is. The antennae are shoi t, 
usually thickened and otten more or less flattened. 
TABLE OF GENERA 
a. Face and proboscis prolonged, beaklike or snoiitlike. 
b. Ri^3 much longer than the distance of its ase from the crossvein ; 
apex of the wing abruptly truncated (PI. I, Fig. 19; i. Genus Arctoneura, Hutton. 
PI. 3, Fig. I I), 
bb. Rg^s shorter than the distance of its base from the crossvein. 
c. Scj {sH costal crossvein) present (PI. I , Fig. 1,4) . . 2. Genus Asindulum, Latreille. 
cc. Sc^ absent. 
d. The subcosta {Sc j) short, ends in the casta; antennae 
2-{-iJ jointed {P\. 3, Fig. 12) 3. Genus Antridophila, Skuse. 
dd. Subcosta ends free; antennae 2-^14 jointed .... 4. Genus Helladepichoria, Becker, 
aa. Proboscis short, not snoutlike. 
h. Antennae pectinate, 2^12 jointed (PI. I, Fig. 21) ... 5. Genus Platyroptilon, Westwood. 
bb. Antennae not pectinate. 
c. Antennae very much flattened, straplike, palpi porrect, not 
incurved (PI. I, Fig. 2,3). 
d. Tibiae and tarsi of hind legs much thickened, R^+j ends 
in the casta (PI, I, Fig. 15; PI. 3, Fig. 13) . . 6. Genus Heteropterna, Skuse. 
dd. Tibiae and tarsi of hind legs not conspicuously thickened. 
e. R^^j ends in Rj (PI. 3, Fig. 14) 7. Genus Ceroplatus, Bosc. 
ee. R2+J ends in the costa 8. Genus Cerotelion, Rondani. 
cc. Antennae not conspicuously flattened, palpi incurved and 
moderately elongate. 
