FAM. MYCETOPHILIDyE 63 
Characters. — Head round, somewhat flattened in front, placed low upon the thorax ; ocelli three 
in number, large, the middle one somewhat smaller, placed in a flattened triangle or in a transverse line 
high upon the front; eyes oval, somewhat emarginate at the base of the antennae; palpi incurved, four 
jointed, the first very small, the fourth long and filiform; antennae projecting forward, 2 + 14 jointed, 
joints of the scapus cupuliform, setose at the tip, the flagellar joints cylindrical, pubescent. Thorax 
ovate, highly arched; scutellum small, semicircular in outline; metanotum steep and high; knob of the 
haltere elongate oval. Abdomen six segmented, in the male cylindrical with large terminal segment and 
small forceps, in the female somewhat compressed with short ovipositor ending in the two strong 
lamellae. Legs moderately long, stout; the femora, particularl)' the hind pair, compressed, all tibiee with 
spurs and weak lateral setae. The fore tibiae have one range, the middle tibiae three, and the hind tibiae 
two ranges of setae, those on the innerside very minute. Wing of the male as long as, of the female a 
little longer than the abdomen, oval, microscopic setulose. The costa extends far beyond the tip of the 
radial sector, ending before the tip of the wing; the subcostal vein is long, ends in the costa before its 
middle; Sca (subcostal crossvein) present; the short basal cell R ends proximad of the fork of the media ; 
cubitus not branched; anal vein vestigial or wanting (PI. 4, Fig. I 9). 
The genus Bolitliohia of Rondani (i856) with B. lateralis, Rondani (nom. nud.) designated as type 
may be the same. 
Type species : A. nitidicoUis, Meigen. 
Geographical distribution of species : 
1. A. amoena,\N 'mx\Q\-iz,Yex\\. Zool.-bot.Ges.Wien, Vol. 1 3, p.8oo(2)(i863). 
amoena, Schiner, Fauna Austr. Dipt. Vol. 2, p. 462 (1864). 
2. A. Bolsiusi, Meunier (fossilj, Mon. Alycetoph. etc. p. 174, pi. 14, 
f. 9, 10 (1904). 
3. A. Braiieri, Strobl, Mitth. Naturw. Ver. Steiermark, p. 1894 (i53) (1895). 
\4. A. defeda, Walker, Ins. Brit. Dipt. Vol, 3, p. 32 (17) {Leia) (i856). 
5. A. flaveola, Coquillett, Proc. U. S. Nat. Mus. Vol. 23, p. 598 (1901). 
6. A. fulvicollis, Philippi,. Verh. Zool.-bot. Ges. Wien, Vol. i5, p. 626, 
pi. 24, f. II {Agaricohia) (i865). 
7. A. longipes, VVinnertz, ibidem, Vol. i3, p. 801 (3) (i863). 
8. A. nigra, Strobl, Mitth. Naturw. Ver. Steiermark, p. i52, 1894 (i8g5). 
9. A. nitidicoUis, Meigen, Syst. Beschr. Vol. i, p. 255 (3) {Leia) (1818). 
nitidicoUis (Meigen), Winnertz, Verh. Zool.-bot. Ges. Wien, Vol. i3, 
P- 799 (i) (i863); Schiner, Fauna Austr. Dipt. Vol. 2, p. 461 (1864). 
10. A. psylla, Loew, Berl. Ent. Zeitschr. Vol. i3, p. 148 (34) (1869) 
11. A. varipennis, Coquillett, Proc. Ent. Soc. Wash. Vol. 6, p. 169 (1904). 
Europe. 
Baltic amber. 
Europe. 
North Europe. 
Eastern United States. 
Chile. 
Europe. 
Central Europe. 
Europe. 
East United States. 
California. 
8. Genus AZANA, Walker 
Azana. Walker, Ins. Bnt. Dipt. Vol. 3, p. 26 (i856). 
Characters. — Head small, ovate, flattened in front, placed low on the thorax; ocelli three in 
number, high on the front, almost on the vertex, arranged in a flattened triangle, the middle one smaller 
than the laterals; eyes oval, somewhat emarginate at the base of the antennae; palpi incurved, four 
jointed, short; antennje projecting forward, pubescent, 2 -(- 14 jointed, the first joint cylindrical, the 
second cupuliform, the flagellar joints cylindrical, somewhat compressed. Thorax ovate, highly arched; 
scutellum small, semicircular in outline; metanotum steep, high; balancer with an elongate oval knob. 
Abdomen six segmented, cylindrical, with a blunt terminal segment and small forceps. Legs stout, the 
