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. 

 Squamulas 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 punctulation, and in the female a black 

 middle stripe between them. Venter 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 coxa? and 

 trochanters; femora yellow, with a more or less broad black 

 patch before the end ; all tibiae 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 

 Chaetodacv-s scutellatiis Hendel, from Formosa, or C. bezzi Mi- 

 yake, from Japan, which however are much larger and have 

 prescutellar bristles. 



3. Chaetodacus atrichus davacanus 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 



