Australian Fruit Flies — HARDY 
155 
7.0 mm. long. The piercer (Fig. I6b) is about 
2.4 mm. long by 0.19 mm. wide. The end of 
the oviduct is about 0.23 mm. from the apex 
of the piercer, and the setae are situated about 
0.09 mm. from the apex. The inversion mem- 
brane is approximately 2.6 mm. long by 0.34 
mm. wide. The scales of the rasper are pointed 
and extend to about 0.85 mm. from the base 
of the eighth segment. The basal segment of 
the ovipositor is elongate and is noticeably 
constricted on its apical two-fifths. The basal 
segment is about 2.1 mm. long by 1.35 mm. 
at its widest point. The spiracles are located 
about 0.38 mm. from the base of the segment. 
TYPE locality: Babinda, N. E. Queens- 
land, ex Pagraea mulleri Benth. 
Type in the Queensland Museum. 
Approximately 150 specimens are in the 
Krauss collection from near Deeral, Queens- 
land, ex Pagraea camhogeana. Sept., 1949. 
Four specimens are from Babinda, Queens- 
land, ex Eugenia sp. near suborbiculata, Sept., 
1949. 
Dacus (Strumeta) halfordiae (Tryon) 
Fig. lla, b 
Chaetodacus halfordiae Tryon 1927. Roy. Soc. 
Queensland, Proc. 38(14): 190-191. 
Chaetodacus gurneyi Perkins 1934. Roy. Soc. 
Queensland, Proc. 45: 41-42. New syno- 
nymy. 
This synonymy is based upon a close com- 
parison of the original descriptions and upon 
a study of specimens from the type locality 
of D. gurneyi as well as from other localities 
in Queensland. The synonymy has been con- 
firmed by Mr. Alan May. 
This species is distinguished from other 
known Australian species of Dacus by the 
largely brownish disc of the scutellum, by the 
black spots on the fifth tergum, and by the 
characters of the female ovipositor. The 
general body coloring is similar to that of 
D. tryoni (Froggatt) and the costal cells are 
usually yellowish-fumose but are bare of 
microtrichia except in the apical portion of 
the second cell. The specimens at hand are 
not in good condition; one series is teneral 
and the others were preserved in alcohol and 
are badly discolored. Only the most important 
characteristics are given below. 
MALE. Chiefly pale colored, yellow-brown 
to rufous. Head: Front about one and three- 
fourths times longer than wide, with two 
pairs of inferior fronto-orbital bristles. The 
facial spots vary somewhat in size and shape 
from oval to a narrow black streak; the spots 
are usually pointed on the lower margin. The 
third antennal segment is just slightly longer 
than the face and little more than three times 
longer than wide. Thorax: Varying from 
chiefly yellowish to rufous to yellow-brown. 
A brown to black vitta is usually present on 
each side, extending from just inside the inner 
posterior supra-alar to the margin of the 
Fig. 17. Dacus {Strumeta) halfordiae (Tryon): a, ovi- 
positor, full length; b, apex of ovipositor. 
