FAM. MYCETOPHILID.^: 5i 
ii3. M. tumida, Winnertz, Verh. Zool.-bot. Ges. Wien, Vol. i3, p. 727 (19) Europe. 
{Sciophila) (i863). 
tumida. Schiner, Fauna Austr. Dipt. Vol. 2, p. 444 (i3l (Sciophila) (1S64). 
11^. M. univittata, Zetterstedt, Ins. Lappon. Dipt. p. 85g (5) {Sciophila) North Europe. 
(i838); Dipt. Scand. Vol. 11, p. 41 19 (i5) {Sciophila) (i852). 
'^iiS. M. variipennis, Arribalzaga. Bol. Acad. Nac. Cordoba, Vol. 12, p. 423 Argentina. 
(17, i) {Empluria) (1892). 
116. M. vittiventr is, Zetterstedt, Dipt. Scand. Vol. 11, p. 41 11 (9) {Scio- North Europe. 
phila) (i852). 
117. M. Wankowiczii, Dziedzicki, Pamietnik Fizyjograf. Vol. 5 (sep.), p. 26 Europe. 
(23), pi. 9, f. 14, i5 {Sciophila) (i885). 
118. M. Winnertzii, Dziedzicki, ibidem, p. 23 (20), pi. 9, f. 8, 9 {Sciophila) Central Europe. 
(i885). 
fasciata, Winnertz inec Zetterstedt), Verh. Zool.-bot. Ges. Wien, Vol. i3, 
p. 720 (12) (i863). 
119. M. Wrsesniotvskii, Dziedzicki, Pamietnik Fizyjograf. Vol. 5 (sep.). East Europe. 
p. 12 (8), pi. 7, f. I, 2 {Sciophila) (i885). 
Polylepia fragilis, Loew, may also belong to the genus. 
Genus SCIOBIA, Loew 
Sciobia. Loew, Ueber den Bernstein und die Bernstein Fauna (i85o). 
Characters. — A fossil genus, probably identical with Mycomya. Meunier mentioned it in a note 
in Bull. Soc. Ent. Fr. p. CX (1894), but does not consider it in his Mon. des Mycetoph. etc. de I'anibre de la 
Baltique (1904). 
Geographical distribution of species. — The following three species were very briefly 
described by Loew, from the Prussian amber : 
\r 5. pendicularis, Loew, Ueber den Bernstein und die Bernstein Fauna, Prussian amber, 
p. 34 (i85o). 
^ 2. S. quadrangular is, Loew, ibidem, p. 34 (i85o). Prussian amber. 
3. S. spinosa. Loew, ibidem, p. 34 (i85o). Prussian amber. 
8. SUBFAM. M Y C ETO P H I L I N >E 
Mycetophilinse. Winnertz, Verh. Zool.-bot. Ges. Wien, Vol. i3, p. bSq (i863). 
Characters, — The subfamily is distinguished from the others by the absence of the M-Cu 
crossvein and by its simple, i. e. unbranched, radial sector. It falls naturally into two groups; in the 
first the lateral ocelli are separated from each other and also remote from the eye, margin, while the 
middle one is more or less conspicuous, and associated with this character in most of the genera is the 
presence of an elongate subcostal vein; in the second group the lateral ocelli are contiguous or nearly 
contiguous to the eye margin, the middle one usually very small or entirely wanting, and the subcostal 
vein is frequently very short or rudimentary. The setulae on the wings, particularly in the members of 
the second group, are very minute and arranged quite regularly in longitudinal rows, while in the other 
subfamilies the arrangement is much less regular. The second group may again be subdivided into two 
