XII. 
ANNALES MUSEI NATION ALIS HUNG ARICI. 
1914. 
A NEW FANNIA FROM FORMOSA (Dipt.) 
By J. R. Malloch. 
Fannia interrupta n. sp. 
Male: Black. Mesonotum deep black, very slightly shining, with 
distinct, brown-gray pollinosity, which covers the entire disc except where 
three subdistinct vittae show; pleurae gray pollinose; scutellum gray-brown 
pollinose. Abdomen deep black, thickly covered with grayish-white polli¬ 
nosity on the narrow posterior margin of second segment, the very narrow 
posterior margins of the next two segments, a lateral, anteriorly dilatèd 
stripe and a submedian pair of stripes which are slightly dilated at their 
extremities, giving to these segments the appearance of having an inter¬ 
rupted black dorsal stripe, and a subtriangular spot of same color on each 
side; fifth segment with the central elongated spot distinct, the lateral 
spots almost obsolete; last segment, and hypopygium with gray pollino¬ 
sity. Legs black. Wings slightly grayish. Calytræ deep brown-black. Halteres 
yellow. 
Head rather large; frons in profile slightly projecting, face slightly 
retreating, and slightly concave; cheeks distinct, though narrow; frontal 
stripe narrow, almost linear; antennæ reaching to distinctly short of the 
epistome, third joint 2% times as long as second; arista bare, swollen at 
base, the swelling ceasing rather abruptly on last section; marginal mouth 
bristles moderately strong, but not very numerous; palpi normal. Meso¬ 
notum with 2 pre-su turai macrochætæ; three rows of acrostichals present; 
scutellum almost bare on disc, only 2 distinct setulæ besides the marginal 
bristles, in type. Abdomen short, ovate, surface hairs rather strong; hypo¬ 
pygium not conspicuous. Legs normal in shape, mid femur neither con¬ 
spicuously thickened on basal half nor constricted at apex; the antero- 
ventral row of bristles not strong, becoming very short and close, comb¬ 
like, on apical fourth; the postero- ventral surface with a row of rather 
longer bristles, which do not decrease conspicuously in length at apex; 
mid tibiæ very slightly thickened, of almost the same thickness from basal 
third to apex, pubescence exceedingly short and inconspicuous, but not 
pile-like, anterior bristle very weak, situated beyond apical third, the 
posterior bristle also weak, but situated slightly higher on tibia, the dorsal 
