420 Mr. J. R. Malloch on Exotic Muscaridee. 
from eye to end of maxillary 2 diameter of eye. 17 gill- 
rakers on lower part of anterior arch. 90 scales in lateral 
line, 15 between anterior dorsal spines and lateral line. 
Dorsal XI 12 ; spines slender, fourth longest, a little more 
than 4 length of head; soft rays gradually decreasing in 
length posteriorly, the first nearly 2 length of head. 
Anal III 10; third spine longest, as long as soft rays, 4 
length of head. Pectoral as long as head, reaching aual. 
Caudal forked. Greyish silvery ; dorsal, anal, and pelvic 
fins blackish ; a black band across anterior part of interorbital 
region. 
A single specimen, 195 mm. long, taken at a depth of 
25 fathoms. 
XLIX.—Ezotic Muscaride (Diptera).—II1.* 
By J. R. Matuocu, Urbana, Ill., U.S.A. 
ASIATIC SPECIES. 
Family Tachinidae. 
Genus XENOTACHINA, NOV. 
Generic characters. — Fourth wing-vein continued to 
margin in an almost straight line, not curved forward ; 
arista plumose; all wing-veins without setule; abdomen 
cylindrical, slightly tapered to apex, the tergites slightly 
overlapping sternites and with strong macrochete at apices ; 
eyes of male widely separated, all frontal bristles except 
the upper. supraorbital directed mesad; ocellar and post- 
ocellar bristles very small and weak; palpi normal; pro- 
boscis short and fleshy; sternopleural bristles 3, in an 
equilateral triangle; prosternum, pteropleura, and_ basal 
abdominal sternite bare; hypopleura with about four weak 
bristles in a vertical series in front of and slightly below the 
spiracle, the latter with some marginal hairs. 
Genotype, the following species. 
Xenotachina pallida, sp. n. 
Male—Pale yellowish testaceous. cellar triangle, a 
patch on each side of upper half of occiput, and a poorly 
* For Part I, see Ann. & Mag. Nat. Hist. (9) vii., Feb. 1921, 
pp. 161-178. 
