xv, 5 Bezzi: Fruit Flies from the Philippines 417 
1. Bactrocera umbrosa Fabrieius, 1805. 
Of this widely spread Oriental species, which I have selected 
as the type of the genus Bactrocera sensu stricto, there are spec- 
imens from the following localities: Luzon, Laguna Province, 
Mount Maquiling ( C . F. Baker). Mindanao, Butuan and Da- 
vao {Baker). 
The species has been described several times under different 
names, of which Dacus fascipennis Wiedemann, 1819, from Java; 
Bactrocera fasciatipennis Doleschall, 1856, from Java; and Stru- 
meta conformis Walker, 1857, from Singapore, are commonly 
considered as synonyms ; but even Dacus frenchi Froggatt, 1909, 
from New Caledonia and Australia, is certainly the same species, 
in as much as Froggatt 11 records later that it was bred in Java 
from fruits of Artocarpus integrifolia by Roepke. 
Another question is that concerning the original Bactrocera 
longicornis of Guerin-Meneville (1830) 1838; in 1835 Macquart 
gave a figure of the wing that is very different from the wing 
of umbrosa, showing the two middle dark bands confluent toward 
the hind border of the wing ; moreover, the scutellum is described 
as having a black spot above in the middle. 
II. Genus CHAETODACUS Bezzi, 1913 
The rather numerous Philippine species of Chaetodacus can 
be distinguished as follows: 
d l . Third and fourth abdominal segments entirely black or each with a 
complete and broad, transverse black band; no middle longitudinal 
black stripe on these segments; oval patches of last segment black; 
occiput black, with a narrow yellow border; species of smaller size. 
b 1 . No prescutellar bristles; third abdominal segment of male not ciliated. 
e 1 . Abdomen reddish, with three complete black crossbands; black 
oval patches of last segment very striking, contrasting with the 
reddish color of the surrounding parts. 
(f. Frons black-spotted; face of male entirely black; face of female 
with three black spots, the upper one placed just below root 
of antennas of smaller size _ C. atriclms sp. nov. 
(F. Frons unspotted; face of female with the two lower black spots 
alone; of greater size— C. davaoanus var. nov. 
c 2 . Abdomen entirely black, even the black oval patches of the last 
segment being indistinguishable. 
e\ A well-developed black crossband at vertex; face in both 
sexes with a broad black band on lower half. 
€. ablepharus sp. nov. 
e 2 . Black vertical band less distinct or even wanting; face of 
female with two black spots C. mindanaus var. nov. 
11 Proc. Linn. Soc. N. S. W. 35 (1910) 866. 
