i5 
DIPTERA 
3. Genus ANTRIADOPHILA, Skuse 
Antriadophila. Skuse. Proc Linn. Soc. N. S. Wales (2), Vol. 3. p. ii83 (11) (1888). 
Characters. — Head small, broadly oval, the fore part flattened ; vertex somewhat elevated. 
Mouth parts prolonged ; eyes longish-oval, a little emarginate on the inner side above; ocelli three, 
arranged in a triangle on the broad front, the middle one smaller than the rest (except in A. petulans 
where all three are large and of equal size). Palpi prominent, incurved, four jointed ; first joint very 
small, cylindrical, second almost elliptical, thicker than the first and nearly twice the length, third 
joint subcjMindrical, not as thick as and shorter than the second, fourth joint twice tlie length of the 
third and more slender than the first. .Antenna generally shorter than the thorax, sometimes as long as 
the head and thorax togethei"; projecting forwards, arcuated, very little compressed, 2-4-12 jointed; 
joints of the scapus distinct, cupuliform, or the first joint cyathiform and the second cupuliform ; fla- 
gellar joints compact, the terminal joint long, conical. Thorax longish-oval, arched; scutellum small, 
semicircular; metathorax arched. Abdomen slender, with seven segments in both sexes, in the male a 
little flattened, terminating with the forceps; in the female flattened, claviform, the ovipositor with a 
small terminal lamellje. Legs long and slender, the first pair shorter than the others; femora about 
as thick as the coxae; tibiae spurred, the spurs of the fore legs, and sometimes also those of the inter- 
mediate legs, short; lateral spines absent, or very minute and occurring on the intermediate and hind 
legs; the intermediate pair with one range on the outer side, the hind pair with two ranges on the 
outer side. Wings moderateh' broad, rounded off at the base, longer than the abdomen, microscopically 
pubescent Costal vein extending much beyond the tip of R2+3; almost reaching the apex of the 
wing; subcosta joining the costa immediately before the base of the radial sector; R2 (subcostal cross- 
vein) absent; Rc+s short, joining the costa, its base situated just beyond the tip of Rj ; anterior 
branch of the media joining the margin just below the apex of the wing, consequently very close to the 
tip of the costal vein; anal vein not complete (PI. 3, Fig. I 2). 
Type species : .i. inihipeniiis, Skuse. 
Geographical distribution of species : 
1. A. ckiiHis. Skuse, Proc. Linn. Soc. NLS.Wales(2),Vol.3,p. 1 187(154) (1888). Australia. 
2. A. nigra, Skuse, ibidem, p. ii88 (i55) (1888). Australia. 
3. A. iiiibipennis, Skuse, ibidem, p. 1184 (i52) (1888). Australia. 
4. A. petulans, Skuse, ibidem, p. 1 186 (i53), pi. 3i, f. 8 (1888). Australia. 
4. Genus HELLADEPICHORI A, Becker 
Helladepichorla. Becker. Zeitschr. f. Hymen. Dipt. p. 237 (1907). 
Characters. — Head flattened; ej'es reniform ; ocelli three, distinct ; face produced ; proboscis 
Empis-like; antennae 2-I-14 jointed; not longer than the head and thorax taken together, the joints no 
longer than broad : the palpi when viewed with a hand lens apparently only two or three jointed, placed 
at the base of the proboscis. Dorsum of the thorax with three distinct rows of setae, lateral margins and 
the scutellum with setae; pleura wholly bare; squama rudmientary. .Abdomen seven or eight segmented. 
Coxae much elongated; legs long and slender; tibiae of the posterior legs with three rows of microscopic 
setae. Wing venation as in Platyuya, differing in having a very short subcostal vein which does not end 
in the costa ; R 2+3 is short and ends in the costa ; the costa is produced beyond the tip of R44-5. 
