88 
DIPTERA 
41. Genus SYNTEMNA, Winnertz 
Syntemna. Winnertz, Verb. Zool.-bot. Ges. Wien, Vol. i3, p. 767 (16) (i863). 
Characters. — Head round, nearly hemispherical, flattened in front, place low upon the thorax; 
eyes round, somewhat emarginate at the base of the antennas; ocelli three in number, subequal in size 
placed in a curved line upon the front; palpi incurved, four jointed, the joints unequal in size, the fourth 
long, slender, filiform; antennae projecting forward, 2-\~i^ jointed, the two basal joints differentiated, 
the second with setse at the apex, the flagellar joints C3dindrical, compressed, pubescent. Thorax oval, 
highly arched, mesonotum without setae, metanotum highly arched. Abdomen seven segmented, cylin- 
drical, constricted at the base, in the male with short terminal segment and forceps, in the female ending 
in a short, stout ovipositor with two terminal lamellae. Legs stout, of moderate length, all tibiae with 
spurs and with small lateral setae. Wings large, hairy, oval, with rounded base, in the male extending 
beyond the abdomen, in the female as long as or shorter than the abdomen. The costa extends beyond 
the tip of the radial sector but does not reach the tip of the wing; the subcostal vein either ending free, 
in which case the vein Sc^ (subcostal crossvein) is present near the tip (PI. 5, Fig. 28), or ends in 
Ri beyond the middle of the basal cell (PI. 5, Fig. 29) ; the media forks distad of the base of the radial 
sector; the cubitus forks proximad of the fork of the media; anal vein incomplete. 
The position of the ocelli will distinguish this genus from Trichonta, even when the subcosta is 
somewhat shortened as in PI. 5, Fig. 29. 
Type species : S. viorosa, Winnertz. 
Geographical distribution of species : 
1. S. alpicola, Strobl, Mitth. Naturw. Ver. Steiermark (1894), p. 145 (iSgS). 
2. 5. compressa, Meunier (fossil), Mon. Mj'cetoph. etc. p. 140 (3), pi. 11, 
f. 8(1904). 
3. 5. elongata, Meunier (fossil), ibidem, p. 139 (i), pi. 11, f. 5, 6 (1904). 
4. 5. longicornis, Coquillett, Proc. U. S, Nat. Mus. Vol. 23, p. 5g7 
(Docosia) (1901). 
5. 5. wom^rt, Winnertz, Verh. Zool.-bot. Ges. Wien. Vol. i3, p. 768(i)(i863). 
morosa, Schiner, Fauna Austr. Dipt. Vol. 2, p. 453 (1864). 
6. S. nuitor, Adams, Science Bull. Kans. Univ. Vol. 2, p. 24 (1903). 
S. pinites, Meunier (fossil), Mon. Mycetoph. etc. p. 139 (2), pi. n, 
f. 7 (1904). 
8. S. polysona, Loew, Berl. Ent. Zeitschr. Vol. i3, p. 142 (24) (1869). 
9. S. sciophiliformis, Meunier (fossil), Mon. Mycetoph. etc. p. 142 (6), 
pi. 1 1 , f. 1 1 , 12 (1904). 
10. 5. siihcylindrica, Meunier (fossil), ibidem, p. 141 (4), pi. ir. f. 9 (1904). 
11. S. siibquadrata, Meunier (fossil), ibidem, p.' 142 (5), pi. 11, f. 10 (1904), 
12. 5. vittata, Coquillett, Proc. U. S. Nat. Mus. Vol. 23, p. 5gy 
{Docosia) (1901). 
Central Europe. 
Baltic amber. 
Baltic amber. 
Eastern United States. 
Central Europe. 
United States. 
Baltic amber. 
Eastern United States. 
Baltic amber. 
Baltic amber. 
Baltic amber. 
Eastern United States. 
42. Genus RUTROPHORA, Schnuse 
Rutrophora. Schnuse, Zeitschr. f. Hym. u. Dipt. p. 149 (igoi). 
Characters. — Head oblong, front wide, ocelli three in number, placed in a transverse line, the 
laterals remote from the eye margin; the eyes oval; antennae 2-|- 14 jointed, the flagellar joints disciform, 
slightly compressed, somewhat incrassate, short but densely pilose, equal, the last joint twice as long 
