334 EMriD.i. 



]i.ile, only the posterior ones a little stronger. Scutellum with 

 two bristles ; halteres and squamae blaclc, fringed. Ahdomen 

 slender, acuminate, black, moderately shining, with a sliglit 

 purplish tinge and pale hairs, wliich ai-e soniewliat longer on the 

 venter ; lamella? of ovipositor prominent, blackish brown, with 

 black hairs. Legs': middle pair shining black, with pale pubes- 

 cence and short bristles ; middle tibiae on outer side witti a row 

 •of five bristles of equal length ; posterior tibite clavate at tip, 

 with short bristles on outer side ; tarsi with sparse, rather long 

 bristles ; posterior femora a little longer than tibia?, hardly in- 

 crassate, Avith rather weak short bristles below. Wings clear, 

 strongly iridescent, Avith weak pale veins; stigma absent ; discal 

 cell extremely small, placed in middle of wing. 



Length, 2i-3 mm. ; wing, 2-2'5 mm. 



Two females from Colombo, 28. ii. 1902, and one exactly similar 

 from Sattelberg, Huon Gulf, Papua, v. 1899. 



Very closely allied to S. nitida, Lw., from South Africa. Bezzi 



notes the difference in size of the discal cell as separating his 



from Loew's species. The form and relative positions of the 



bases of the 2nd and 3rd longitudinal veins are also different in 



he two species, according to the figures. 



Genus HARPAMERUS, Big. 



Harpamerus, Bigot, Rev. xMag. Zool. (2) xi, p. 301 (1859). 



" Near Hghos. Head conical, short ; proboscis erect, mode- 

 rately long ; palpi pori'ect, cylindrical, tip with long bristle. 

 Antenna? short ; two basal joints narrow and inconspicuous ; 3rd 

 rounded, as long as 1st, compressed ; style long, bare, apical. 

 Hind femora incrassate, iniderside with long spines iucrassated at 

 their bases. Wings with anal cell large, closed on hind margin 

 of wing." 



264. Harpamerus signatus. Big. 



Harpamerus signatus, Bigot, llev. Mag. Zool. (2) xi, p. 806 (1859). 



" c? $ . Testaceous : abdomen brown at tip. Thorax brown, 

 with three dark stripes. Proboscis pale; palpi brownish. Legs 

 testaceous ; hind legs brown ; all tarsi pale testaceous or whitish, 

 Avith black tips. Wings subhyaline, veins infuscated Avitli 

 broAvnish ; stigma hemispherical, brown. Ceylon." 



Length, 6 mm. 



Genus ACARTERUS, Lw. 



Acarterus, Loew, Ofv. Iv. Yet.-Akad. Furli. xv, p. 340 (1858) ; id., 

 Dipt. Fauna Slid-Afr. p. 262 (I860;. 



Genotype, Acarterus imicolor. Lav. (S. Africa). 



Third antennal joint broad, shortly conical, with a straight bare 



