﻿170 PROCEEDINGS OF THE^ NATIONAL MUSEUM vol. 102 



margins postsuturally ; only one notoplenral bristle, situated in pos- 

 terior corner of notoplenral area ; scutellum dark brown laterally. 



Abdomen very dark brown, but somewhat paler basally and api- 

 cally. Copulatory fork figured is yellowish with black mesal spinules. 



Legs of general body color; tips of femora black, on fore femora 

 for distance equal to twice the width, on middle and hind femora for 

 distance equal to width, an indistinct darker ring at apical third of 

 femora. Fore tibiae black except at base, middle and hind tibiae 

 dark brown. Fore tarsi black, except apical half of basitarsi and 

 basal two-thirds of second joint, which parts are pale yellow; middle 

 and hind tarsi brown, blackish apically, the hairs black, except part 

 of the plantar brush. 



Wings uniformly tinged with light brown; the basal crossvein its 

 own length apicad of vein closing the anal cell ; first posterior cell 

 narrowly open; second vein ending 0.36 to nearly 0.5 the distance 

 from tf to apex of wing. Knobs of halteres gray-brown. 



Types. — Holotype, male, U.S.N.M. Xo. 58981, Caroline Islands: 

 Ponape (Mount Dolennankap), 1,700 to 2,000 feet, August 10, 1946 

 (H. K. Townes No. 1648) ; allotype, female, same locality, 1,800 feet, 

 August 11, 1946 (H. K. Townes No, 1651) ; paratypes, four males, five 

 females, same data as allotype ; one female, same data as holotype. 



Remarks. — Since this species runs in Hennig's key (1935, p. 83) to 

 Mimegralla leucopeza., it may be a subspecies of that form. However, 

 the general yellowish color is more extensive than in any race of M. 

 leucopeza.^ and the wide separation from the nearest station of that 

 species {M. I. albitarsis^ Manila, Philippine Islands) also makes 

 doubtful its identity with leucopeza. 



10. MIMEGRALLA PONAPENSIS PONAPENSIS Henni? 



Mimegralla poriapensis Hennig, Konowia, vol. 14, p. 207, 1935. 



Caroline Islands: Ponape Island, Colonia, 29 specimens. 



lOa. mimegralla PONAPENSIS KUSAIEANA, new subspecies 



Male and female. — Middle femora yellow at base for distance equal 

 to twice the diameter of the part, then black to 0.6 the whole length, 

 then yellow for about 1.5 times the diameter and finally brown, but 

 yellow again apicoventrally. The hind femora are yellow for 3.5 

 diameters, then black to 0.6 the whole length, the yellow portion with 

 a preapical brown section. 



The middle and hind tibiae, which in M. p. ponapensis are practi- 

 cally wholly black or sometimes a little brownish distomedially, in 

 M. p. kusaieana are yellowish except at each end. 



