353 



PHORID^ 

 Platyphora flavofemorata, n. sp. 



Ma7^._Black. Head black, f rons highly polished ; antenricnc ful- 

 vous, third joint brown at apex, arista black; palpi fulvous. Thorax 

 glossv black, upper portion of pleur3e, especially posteriorly, brownish; 

 scutcilum dull black, the surface shagreened. Abdomen black, dis- 

 tinctly shining throughout, surface with very faint indications of pru- 

 inescence. Legs yellow, mid and hind cox^e infuscated at bases; all 

 tibic-e infuscated, the depth of the infuscation increasing from near base 

 to apices ; tarsi fuscous. Wings clear, thick veins fuscous. Halteres 

 yellow, apices of stems and the knobs black. 



Frons about 1.5 as wide as its length at center, the length slightly 

 less at eye margin than at center, surface with numerous short decum- 

 bent hairs, those at vertex slightly longer than those on disc ; distance 

 between the posterior ocelli about twice that between either of these 

 and the median one ; basal antennal joint rather elongate ; third joint 

 about 1.5 as long as broad, rounded at apex; arista subapical, bare, 

 very slender, basal joint very short, slightly swollen; cheeks with 4-5 

 f orwardly and slightly downwardly directed bristles ; palpi very small, 

 armed with several stout apical setulse. Mesonotum broader than long, 

 disc with short hairs and without dorso-central macrochsetse, scutellum 

 about twice as broad as its length at center, margin with a number of 

 decumbent setulose hairs which lie along the edge and give it the ap- 

 pearance of having a rim ; disc distinctly shagreened. Abdomen with 

 second segment longer than either of the 3 following segments, 6th 

 longer than 4+5, its lateral surfaces with short hairs ; surfaces of ab- 

 dominal segments minutely shagreened ; hypopygium small, surface of 

 dorsal plate shagreened. Legs stout ; fore coxse stout, over two thirds 

 as long as fore femora, their anterior surfaces with setulose hairs 

 which become longer and stronger towards apices of coxse ; fore tibia 

 about two thirds as long as femur, and distinctly longer than basal 

 joint of tarsi (17:10); fore tarsi dilated, especially the basal joint, 

 which is distinctly wider at apex than is the tibia; second tarsal joint 

 appreciably longer than third ; mid tibice with 2-3 apical setula; , hind 

 tibia; with short decumbent setulse on ventral surfaces, so arranged that 

 they appear like irregular longitudinal rugae; apices with 2-3 short 

 setulai and one longer bristle ; mid and hind tarsi slender, basal joint 

 of each with a few short downwardly directed setula} on ventral sur- 

 faces. Costa extending to middle of wing; third vein swollen, thicker 

 than costal vein excepting apical part of latter, setulose throughout ; 

 second vein distinct, setulose; first vein swollen at apex, extending be- 



