xv„ 5 Bezzi : Fruit Flies from the Philippines 431 
end, ending near the middle of exterior border of first posterior 
cell. First basal cell infuscated above the second; hind cross 
vein margined with fuscous, fuscous border narrow above, 
broadened below, and dilated along hind border of wing into 
third posterior cell, to reach sometimes (chiefly in the male) 
the anal stripe. The last is very broad and long, being dilated 
at end in the male and reaching hind border of wing. 
16. Cliaetodacus tetrachaetus sp. nov, Plate I, fig. 10. 
Related to the preceding species and likewise distinguished 
from C. caudatus by the smaller size, the black mesonotum, and 
the distal end of the costal border of the wings not being broad- 
ened; but it is distinguished from C. mundus and from C. syn- 
nephes by the brown anal stripe of the wings being quite 
wanting. 
Panay, Antique Province, Batbatan Island (McGregor ) , 
Type in my collection. 
Male. — Length of body, 6.5 to 7 millimeters; of wing, 6.5 to 
7. Head and its appendages as in C. mundus; frons without 
lateral brown spots, but with a distinct and convex middle 
dark spot, the latter clothed with dense and rather long pubes- 
cence ; tw'o shining black oval spots on face near end of antennal 
grooves. Cephalic bristles black; only two pairs of lower or- 
bitals. 
Back of mesonotum as in C. mundus, but yellow supra-alar 
stripe prolonged in front of suture to reach humeral calli, as 
in C. continuus; it is moreover reddish in front between humeral 
callosities, and on sides at outer border of the yellow supra-alar 
stripe, pleura, mesophragma, and scutellum as in C. mundus, 
but propleural region, lower border of sternopleuron, and breast 
more broadly reddish; scutellum pellucid on its central part, 
the yellow 7 sides thus forming a pair of yellow spots. Bristles, 
squamulse, and halteres as in C. mundus. 
Abdomen as in C. mundus, but black basal band of second 
segment extending to sides, being there united with the black 
lateral border; middle black longitudinal stripe broader and 
extending to hind border of last segment; lateral black spots 
of fourth and fifth segments narrower and forming an equal 
black border; black cilia of third segment more numerous. Fem- 
ora entirely yellowish and quite unspotted; front and middle 
tibiae more or less infuscated ; hind tibiae black and strongly 
tuberculate before the end; pretarsi w 7 hitish. 
Wings (Plate I, fig. 10) as in C. mundus, but with the super- 
