PHILIPPINE DIPTERA, II 55 



196. Eurybata hexapla O. S. 1882. 



Luzon, Laguna, Los Banos and Mount Maquiling. A very 

 strange and beautiful endemic insect. 



Telostylus niger Bezzi, 1913. This species, described in the 

 first century, 16 seems to be common in the Islands, being also 

 represented from Mount Maquiling ; Professor Baker has reared 

 it from fallen fruits of Terminalia nitens Presl. 



Male. The undescribed male is like the female, but is notice- 

 ably different in the front legs like the males of other species of 

 the genus Telostylus. The front femora are provided below on 

 the apical half with two rows of short black spines, those of the 

 internal rows being distinctly longer. The basal joint of each 

 front tarsus is considerably swollen and spindle-shaped. The 

 femora of all the legs, and chiefly those of the intermediate 

 pair, are distinctly thickened. The genitalia are prolonged as a 

 cylindric protuberance, which is bent below, and in front of 

 this there is another yellow prominence. 



197. Nothybus triguttatus sp. nov. 



Very like the typical species, N. longithorax Rondani, from 

 Borneo, but differing in the wing pattern. 



Male. Length of body, 7 millimeters ; of wing, 7. Head yel- 

 low. Occiput very much hollowed above, the eyes being prom- 

 inent on the sides; frons with a deep and broad excavation at 

 vertex behind the ocelli, and there with a striking velvety black 

 subquadrate spot ; the remainder of frons gently convex, strongly 

 glistening, with a broad velvety black spot on each side, in 

 contact with the eyes and of triangular shape, prolonged behind 

 along the orbits to their middle and in front entirely to cover 

 the narrow cheeks. Face elongate, narrower than the frons, 

 yellow above, whitish below and there with a prominent, oval, 

 strongly glistening blackish brown tubercle, the surrounding 

 area shining white; prselabrum prominent, triangular, whitish; 

 palpi whitish, narrow, almost bare ; proboscis yellowish. Anten- 

 na short, inserted above the middle of eyes, the two basal joints 

 yellow, with some black hairs and a longer bristle above at end 

 of the second; third joint rather acute at end, not longer than 

 the first two joints together, deep black with narrowly yellow 

 base; arista blackish, incrassate at base, very long-plumose to 

 the end. Cephalic bristles strong and black; two pairs of 

 verticals, bent backward, the inner pair longer and placed more 

 forward; two pairs of frontoorbitals, likewise bent backward, 



18 Phil Journ. Scl, Sec. D (1913), 8, 329, No. 85. 



