xv. 6 Bezzi: Fruit Flies from the Philippines 423 



at vertex; and in the face, which has only two black spots, of 

 elongate shape, at the lower end of the antennal grooves. 



6. Chaetodacus ferruginous dorsalis Hendel, 1912. 



This is the palest-colored form among those separated from 

 C. ferrugineus; it seems to be rather rare in the Philippines, 

 being represented by a single female specimen. 



Luzon, Laguna Province, Los Bafios (Baker). 



7. Chaetodacus ferrugineus occipitalis var. nov. Plate I, fig. 3. 

 Male and female. — This new variety is darker colored than 



the preceding one, having darkened bristles, black mesonotum, 

 black mesophragma, and black tibiae ; but it is paler colored than 

 the following one, having reddish occiput and entirely yellowish 

 femora. The dark fore border of the wing (Plate I, fig. 3) is 

 broader than in C. dorsalis and C. pedestris; it is usually con- 

 tinued by a yellowish tint into the middle of the submarginal 

 cell. The length varies from 7 to 8 millimeters. It seems to 

 be the commoner form in the Philippines. 



Luzon, Laguna Province, Los Bafios, Mount Maquiling and 

 Mount Banahao (Baker): Rizal Province, Manila (McGregor). 

 Panay, Antique Province, Batbatan Island (McGregor) . Min- 

 danao, Davao (Baker). Types in Professor Baker's collection. 

 Specimens taken at Singapore by Professor Baker agree with 

 this variety. 



Note. — In all these three forms (C. f. occipitalis, pedestris, 

 and limbiferus) the oval patches of the fifth abdominal segment 

 are shining reddish, like the surrounding parts. 



8. Chaetodacus ferrugineus pedestris Bezzi, 1913. Plate I, fig. 4. 

 Male and female. — In the present variety the occiput is black 



in the center, with a yellow border on the sides; the bristles 

 are nearly black; the submarginal cell (Plate I, fig. 4) is quite 

 hyaline below the costal border, which does not surpass the 

 second longitudinal vein in the middle or only a little so. The 

 length varies from 6 to 7 millimeters, rarely surpassing 7 milli- 

 meters in the female. 



It is probable that the present form is the ferrugineus re- 

 corded by Osten-Sacken, being very common near Manila. It is 

 closely allied to the common Indian form that I have described 

 under the name C. ferrugineus incisus Walker, but may be dis- 

 tinguished by the much broader yellow supra-alar stripe of 

 mesonotum and the less-blackened abdomen. 



LUZON, Laguna Province, Los Bafios (Baker) : Rizal Province, 



