1192 
DIPTERA OF AUSTRALIA, 
vein extending a little beyond the tip of the second longitudinal 
vein, and not reaching the apex of the wing ; inner marginal cell 
short, much widened towards the apex, the apex situated midway 
between the sub-costal cross-vein and marginal cross- vein ; mar- 
ginal cell very small, almost equilateral, its base (the marginal 
cross-vein) situated immediately beyond the base of the second sub- 
marginal cell ; the second sub-marginal cell almost sessile, the 
petiole extremely short ; both branches of the fork bending pos- 
teriorly towards their tip ; second posterior cell very small, its base 
situated a little befoi’e the middle of the second sub-marginal cell ; 
fifth longitudinal vein incomplete, not reaching as far as the base 
of the second posterior cell. 
157. Homaspis meridiaxa, sp.n. (PI. xxxi., fig. 9). 
— Length of antennre 0'090 inch ... 2-27 millimetres. 
Expanse of wings 0‘150 x 0’045 ... 3-81 x L13 
Size of body G’150 x 0'020 ... 3*81 x 0‘50 
Antenna slender, considerably longer than the head and thorax 
combined ; joints of the scapus ochraceous-brown ; flagellar joints 
3 to 4 times longer than Vjroad, deep umber brown, densely 
covered with a very short pubescence with a greyish reflection. 
Front and vertex black or deep brown, with short golden yellow 
hairs. Hypostoma and palpi deep brown. Thorax dull deep 
brown inclining to umber, densely covered with short golden 
yellow hairs, setiferous on the lateral borders and scutellum ; 
pleurae, metathorax and scutellum deep brown. Halteres rather 
long, slender, densely covered with a minute pale pubescence ; 
stem yellow, club deep brown. Abdomen slender, more than 
twice, the length of the thorax, deep castaneous brown, rather 
densely clothed with moderately long golden yellow hairs; forceps 
as wide as the terminal segment, deep brown, densely haired 
(PI. XXXI., fig. 9b). Fore coxae ochraceous; intermediate and hind 
coxae deep brown, the intermediate pair slightly ochraceous at the 
apex, with yellow hairs ; femora, tibiae and tarsi (these joints of the 
