Studies in Fruit Flies. Part L Dacini — FIardy AND AdACHI 
193 
is expanded into a distinct wing spot at the 
apex; the band does not extend into cell R3 
except near the apex of vein R3, and it extends 
through the upper two fifths of the apex of 
cell R3 (Fig. 26b). The narrowed portion of 
the cubital cell is about four times as long as 
the distance from the apex of the cell to the 
wing margin. Abdomen: Chiefly rufous with 
black bands across the bases of terga two and 
three, with a narrow brown to black vitta 
extending down the median portion over seg- 
ments three to five and with large brown to 
black spots on each anterior lateral margin of 
terga four and five. The submedian oval areas 
on the fifth tergum are rufous in ground color, 
are densely covered with pale pile, and are 
gray pollinose. 
Length: Body, 7. 5-8.0 mm.; wings, 7.0- 
7.5 mm. 
We have no information on the female of 
this species. 
TYPE LOCALITY; Java. 
Type in Vienna, according to Bezzi (1913: 
75). 
We have seen this species from Singapore, 
Malaya, Mar., 1907 (F. Muir) and from Pa- 
soeroean, Java, Apr., 1914 (F. Muir). 
Dacus (Zeugodacus) mundus 
(Bezzi), n. comb. 
Fig. 27 
Chaetodacus mundus Bezzi, 1919, Philippine 
Jour. Sci. 15(5): 429-431. 
Zeugodacus tibialis Shiraki, 1933, Taihoku Imp. 
Univ., Faculty Sci. and Agr., Mem. 8(2): 
96-98. New synonymy. 
This species belongs in the hageni group 
and resembles that species very closely. It is 
distinguished from D. hageni de Meijere by 
having the posterior crossvein fumose; by its 
all-yellow face and by having no yellow mark- 
ings on the mesonotum before the suture. It 
is differentiated from D. caudatus Fabricius by 
its all-yellow face and by the darker colora- 
tion on the front femora and the mesonotum. 
This species has been adequately described 
and figured, except for female genital char- 
acters, by Bezzi and Shiraki (as cited above). 
It is obvious that Zeugodacus tibialis Shiraki is 
the same as mundus. Shiraki’s description and 
figures fit this species in all details. Perkins’ 
key (Perkins, 1938: 138), couplet 20, is mis- 
leading; it separates mundus from tibialis on 
the basis of whether or not the costal band 
is dilated to form an apical spot. The costal 
band is not noticeably dilated in mundus and 
is the same as Shiraki’s figure (1933, pi. II, 
fig. 6) of tibialis. 
Ovipositor: The visible ovipositor {in situ) 
is nearly equal in length to abdominal seg- 
ments three to five combined (1.3-1. 5 mm.). 
The extended ovipositor is about 6.0 mm. 
long. The basal segment is 2.25 mm. long. 
The inversion membrane is evidently about 
2.25 mm. long (it could not be reverted in 
the specimen at hand), and the piercer is 1.5 
mm. in length. The oviduct opens about 0.19 
mm. from the apex, and the setae are very 
close to the tip of the piercer (Fig. 27). 
TYPE locality: Luzon, Philippine Islands. 
Bezzi also recorded it from Panay and Min- 
danao. 
Fig. 27. Dacus {Zeugodacus') mundus (Bezzi). Apex 
of piercer. 
