xv, 5 Bezzi: Fruit Flies from the Philippines 421 
of mesonotum. Thoracic bristles black; scapular bristles well- 
developed, even the middle pair; one anterior supra-alar; no 
prescutellar; pteropleural a little weaker than the mesopleural. 
Squamulse darkish; halteres whitish. 
Abdomen broad and rounded, punctate and pubescent like 
back of mesonotum; yellowish, with broad, black crossbands; 
first segment broadly black at base and on sides; second seg- 
ment with a complete transverse black band at base; third and 
fourth segments each with a complete, black, basal crossband, 
in the male equal in breadth to half the segment, in the female 
much broader, only a narrow hind border being yellow; fifth 
segment with a black fore border, interrupted in the middle and 
more developed in the female; black oval patches less shining 
on account of their punetulation, and in the female a black 
middle stripe between them. Venteg with yellowish membrane, 
anterior sternites brown and posterior ones black; male gen- 
italia black, with yellowish appendages, anterior one forked at 
base ; ovipositor flat, with basal segment black and apical segment 
reddish brown ; legs with blackish or dark brown coxse and 
trochanters; femora yellow, with a more or less broad black 
patch before the end ; all tibise yellow in the male, in the female 
four posterior ones black with yellowish bases ; tarsi whitish in 
both sexes. 
Wings (Plate I, fig. 1) hyaline, with a blackish fore border 
and a blackish anal stripe. Costal border formed by the stigma, 
by the black marginal cell not surpassing second longitudinal 
vein, and by a little broader (but not spotlike) border at end 
of submarginal cell and of first posterior cell, ending a little 
beyond middle of apex of first posterior cell. Anal stripe broad 
and intensive, but not dilated at end, and bearing no bulla in 
the male. First basal cell darkened just above dilated second 
basal cell. Last portion of fourth vein nearly straight. 
Note. — In the abdominal pattern the present species recalls 
Chaetodacus scutellatus Hendel, from Formosa, or C. bezzi Mi- 
yake, from Japan, which however are much larger and have 
prescutellar bristles. 
3. Chaetodacus atrichus davaoanus var. nov. 
Differing from the preceding species in greater size and in 
some minor details of color pattern. 
Mindanao, Davao (Baker) . Type in Professor Baker’s col- 
lection. 
Female. — Length of body, 6 millimeters; of wing, 5.5. The 
