ART. 15 NOTES ON ACALYPTRATE FLIES MALLOCH 11 



Genus LAMPROGASTER Macquart 



Lamprogaster Macquart, Dipt. Exot., vol. 2, pt. 3, 1843, p. 211'. 



Up to the present but one species of this genus has been definitely 

 recorded from the Philippines, but before me there are two species 

 which are quite closely related though very different in coloration. 

 I describe one of the species below as new to science. 



It would appear worth mention that in all species from Australia 

 which I have seen there is a well-developed bristle on the upper por- 

 tion of the hind margin of the mesopleura and that in both the 

 Philippine species this bristle is lacking. It is hardly necessary to 

 erect a subgenus for the Philippine species on the basis of this char- 

 acter, but it will be of interest to note whether there are any species 

 from any other region in which this bristle is absent normally. 



LAMPROGASTER PLACmA (Walker) 



Chromatomyia placida Walker, List Dipt. Brit. Mus., vol. 4, 1849, p. 802. 



A deep metallic violet-blue species with black legs and hyaline 

 wings, on the latter of which there are a few narrow black marks. 

 Bezzi writes that the legs are entirely black but in some of the speci- 

 mens there is a much paler, yellowish, portion at bases of the femora 

 which may extend even to the middle. The wing markings consist of 

 a partial fascia at apices of the basal cells, a slender oblique fascia 

 from center of the stigma to or slightly beyond the inner cross vein, a 

 narrow cloud on the outer cross vein, and opposite it on the costa a 

 short spur of a fascia from the latter of which to apex of wing there 

 is a narrow dark border. The frons is dull brownish or fuscous, 

 the face, antennae, and labrum, testaceous yellow, and the palpi 

 brownish. 



All four verticals present but very short, oceilars undeveloped; 

 antennae extending to slightly below middle of face and about as 

 long as height of cheek ; arista short haired to beyond middle, slightly 

 compressed. Scutellum without discal hairs, with usually eight short 

 marginal bristles and some fine hairs between them basally. First 

 posterior cell narrowed apically; inner cross vein at about one-third 

 from apex of discal cell. 



Length, 8 mm. 



Localities, Samar Island; Iligan, and Dapitan, Mindanao, P. I. 

 (C. F. Baker). Bezzi recorded it from Butuan, Mindanao. 



LAMPROGASTER FULVESCENS, new species 



Female. — Fulvous yellow, frons brownish, labrum and apices of 

 palpi black, legs fulvous yellow, fore tarsi and apices of mid and 

 hind pairs dark brown; wings hyaline except for a brown cloud 



