422 Philippine Journal of Science i»i» 



frons is quite unspotted, excepting the black ocellar dot; the 

 face lacks the upper black spot; the episternal callosities are 

 broadly yellowish; the black abdominal band lacks the middle 

 point on that of the third segment, and there is no black stripe 

 between the two black patches of the last segment; the basal 

 segment of the ovipositor is reddish brown. 



4. Chaetodacus ablepharus sp. nov. Plate I, fig. 2. 



Very much like the preceding species (C. atrichus) , but at 

 once distinguished by the entirely black abdomen. 



Luzon, Tayabas Province, Malinao (Baker) : Laguna Prov- 

 ince, Mount Banahao (Baker). Types in Professor Baker's 

 collection. 



Male and female. — Length of body, 4.5 millimeters; of wing, 

 4.3. Flead as in the preceding, but yellow occipital border 

 narrower; at vertex a small but distinct transverse black band, 

 including black ocellar dot; face in both sexes with a black 

 crossband, extending on its lower half. Mesonotum and scutel- 

 lum as in the preceding, but back distinctly more shining; 

 supra-alar stripe narrower and ending at suture, presutural 

 spot before it being quite wanting. Halteres whitish. Abdo- 

 men as in the preceding but completely black, only the extreme 

 hind border at last segment being narrowly reddish in the 

 male; male genitalia and ovipositor entirely black. Legs as 

 in the preceding, but femora more broadly and more intensely 

 black; posterior tibiae blackish in the male and all tibiae black 

 in the female. Wings (Plate I, fig. 2) as in the preceding; 

 marginal cell a little subhyaline in the middle, the costal border 

 being thus even narrower, thin fringe at hind border of axillary 

 lobe longer than in the preceding species; supernumerary lobe 

 of the male more exaggerated. 



Note. — The present species is closely allied to Chaetodacus 

 eilifer Hendel, from Formosa, which, however, has prescutellar 

 bristles and a ciliated third abdominal segment in the male. It 

 is always a question which of the species C. ablepharus and 

 C. eilifer may or mav not be the same as C. terminifer Walker, 

 from Macassar. 



5. Chaetodacus ablepharus mindanaus var. nov. 



Distinct from the species in some minor details of the pattern 

 of the head. 



Mindanao, Davao (Baker). Type in Professor Baker's col- 

 lection. 



Female.— Differs only in the want of the black crossband 



