22 PEOCEEDINGS OF THE NATIONAL MUSEUM vol. 78 



In all four species the scutellum has minute discal hairs and four 

 subequal marginal bristles. 



Genus ELASSOGASTER Bigot 



Elassogaster Bigot, Ann. Soc. Eut. France, p. 546 (1859). 



This genus is distinguished from Plagiostenopte^'lna Hendel by the 

 lack of hairs on the face, the comparatively longer first basal cell 

 with its erect cross vein at apex, the upward rather than downward 

 deflection of apex of third vein, and the entire absence of hair or pile 

 from the upper surface of the section of fifth vein between the basal 

 cells. 



I have before me two species of the genus, neither of them the 

 genotype. 



ELASSOGASTER SEPSOIDES (Walker) 



Dacus sepsoides Walkek, Proc. Linn. Soc, vol. 5, p. 163 (1861). 



A common species throughout the Orient. A synonym of this spe- 

 cies is P. hendeli Knab. 



Many specimens in United States National Museum collection from 

 the Philippines, mostly from the Baker collection, and the type series 

 of hendeli Knab. 



ELASSOGASTER VANDERWULPI Hendel 



Elassogaster vanderwulpi Hendel, Abhandl. Zool.-Bot. Gesellsch., Wein, 

 vol. 8, p. 83 (1914). 



I have examined two specimens of this species from Southern 

 Rhodesia. It is in nearly all respects similar to the preceding spe- 

 cies, but the tarsi of all legs are deep black, and the apical black spot 

 on the wing is smaller; the mid and hind tarsi in sepsoides are 

 reddish. 



ELASSOGASTER TERRAEREGINAE Malloch 



Elassogaster terraereglnae Malloch, Proc. Linn. Soc, N. S. W., vol. 53, p. 

 352 (1929). 



This Australian species differs from the preceding two in having 

 the apical dark spot of the wing reduced to a narrow stripe along the 

 margin beyond the apex of the second vein, the legs honey -yellow 

 with the fore tibiae and tarsi deep black, and the central grey dusted 

 mesonotal vitta undivided posteriorly and continued on to base of 

 scutellum. 



The fourth wing vein is less noticeablj^ curved forward at apex, 

 ending behind the tip of the wing, and the disk of the scutellum is not 

 bare but furnished with a number of pale hairs. The frons is also 

 broader and distinctly punctured. 



