FAM. MYCETOPHILID^ 
7 
Characters. — ■ Head spherical, flattened in front; eyes oval, somewhat bulging, slightly notched 
above on inner margin; ocelli three, on the broad front in a curved line; palpi incurved, C3'lindrical, 
four jointed, the first very small, the second and third subequal, the fourth longest; antenna filiform, 
hair\', that of the male nearly as long as the body, of the female shorter, 2 + i5 jointed, the two basal 
joints cupuliform, the flagellar joints cylindrical, the last very small, bud-lilce. Thorax small, oval, 
highly arched, the scutellum rounded, small ; metanotum steep, arched. Abdomen of the male eight 
segmented exclusive of the apical segment, slender and very long, linear, of the female nine segmented, 
the apical joint small, whole abdomen laterally compressed. I-egs long and slender, the tibise with 
very weak and short spurs, the fore pair with one row on the inner side, the hind pair on the inner 
side with one row, on the outer side with two rows of exceedingly short and slender setae. Wing large, 
microscopically setulose, as long as or somewhat longer than the abdomen, folded flat upon the back 
when at rest. Sci rather long, ending in the costa, Sc^ present, costa prolonged beyond the tip of R4-|-,s, 
media with long petiole, Ra-i-.', very short, ending either in the costa or in Rj (PI. 3, Fig. I), media 
rises near the base of the wing, the cubitus forks far before the R-M crossvein, the cell M much shorter 
than cell R, the anal vein I'eaches the wing margin; the M-Cu crossvein sometimes obliterated by the 
coalescence of a portion of the basal section of and Cu. 
Type species : Curtis named Messala saitudt'i sti the type oi Messala (= B. fusca, Meigen). 
Geographical distribution of species : 
1. B. bimaailata, von Roser, Corresp.bl. VViirteinberg, Landw. 
Ver. Vol. I, p. 5i (1840). 
2. B. himaciilaia, Zetterstedt, Ins. Lappon. Dipt. p. 864 (i) (i83S). 
Winnertz, Verb. Zool.-ljot. Ges. Wien, Vol. i3, p . 673 (2) ( i863). 
3. B. bimaciilata, Scholtz, Uebers. d. x'^rb. u. Verand. d. Schles. Ges. f. 
vaterl. Cultur, p. 166 (2) (1846). 
4. B. cinerca, Meigen, Syst. Beschr. Vol. i, p. 221, pi. 8, f. 1, 2 (iSiS). 
cinerea, Winnertz, Verh. Zool.-bot. Ges. Wien, Vol. i3, p. 674 {3j {iS63); 
Schiner, Fauna Austr. Dipt. Vol. 2, p. 430 (i) (1864). 
5. B. disjuncta, Loew, Beschr. Eur. Dipt. Vol. i, p. 19 (i7)(r86g). 
6. B. duhia, Siebke, Nyt Mag. f. Naturvidensk. Vol. 12, p. i85 (1861). 
7. B. fusca, Meigen, Syst Beschr. Vol. i, p. 221 (2), pi. 8, f. 3, 4(1818). 
/(i5fi7, Winnertz, Verb. Zool.-bot. Ges. Wien, Vol. i3, p. 673 (i) (iS63); 
Scbiner, Fauna Austr. Vol. 2, p. 430 (i) (1864). 
hyhrida, Meigen, Klass. Vol. i, p. 47 (3) [Macrocira) (1804). 
maculipeuiiis. Walker, Ent. Mag. Vol. 3, p. 179 (i836). 
Saundersii, Curtis, Brit. Ent. p. 58i, plate [jMessala) (iS35). 
8. B. glabraia, Loew, Beschr. Eur. Dipt. Vol. i, p. ig (18) (1869). 
— B. hybrida, Meigen =^ fusca, Meigen. 
9. B. Inminosa, Skuse, Proc. -Linn. Soc. N. S. Wales, (2), Vol. 5, 
p. 678 (1890). 
10. B. montaua, Coquillet, Proc. U. S. Nat. Mus. Vol. 23, p. SgS (igoi). 
— B. maciilipennis, Walker = fusca, Meigen. 
— B. SaiDidersii, Curtis, = fusca, Meigen. 
11. B. tenella, Winnertz, Verh. Zool.-bot. Ges. Wien, Vol. i3, p. 674(4)(i863). 
Central Europe. 
Europe. 
Central Europe. 
Central Europe. 
Europe. 
Europe. 
Europe. 
New Zealand. 
Eastern United States. 
Europe. 
2. Genus HESPERINUS, Walker 
Hesperinus. Walker, List Dipt. Brit. Mus. \"ol. i, p. St (1848). 
Spodius. Loew, Berl. Ent. Zeitschr. Vol. 11, p. 108 (i858). 
Characters. — Rather large, bare, blackish species, resembling BolUopJiila in habitus. Head 
