COLLECTED IN BATCHIAX, KAISAA, ETC. 293 



Gen. Plattstoma, Latr. 



84. Platystoma atomaria, 11. s. MasetFccm. Nigra, lata, robusta, 

 subaurato pubescens, capite rufescenti-fulvo punctis nigris, facie max- 

 ima, anteiiiiis fulvis, thoiace vittato, sciitello maximo, abdomine sub- 

 compresso segmentis cinereo margiiiatis, tibiis tarsisque fulvis, alis 

 cinereis, guttis plurimis transversis nigricaiitibus, halteribus sordide 

 albidis. 



Male and Female. Black, broad, stout, dull, thinly clothed with slightly 

 gilded pubescence. Head reddish tawny, whitish behind and about 

 the eyes, with three black points on the vertex ; front with four black 

 points in a line at the base of the antennre ; face very large, with a 

 black dot on each side at the end of the groove in which the antenna 

 rests; epistoma not prominent. Antennre tawny, little more than 

 half the length of the face; 3rd joint slender, linear; arista bare, 

 slender, very much longer than the 3rd joint. Thorax with a not 

 pubescent stripe ; scutellum very large, elongate -conical, slightly 

 ascending, extending far over the abdomen. Abdomen shghtly com- 

 pressed, a little shorter and much nan'ower than the thorax ; hind 

 borders of the segments cinereous ; oviduct long, stylate, tawny to- 

 wards the tip. Femora stout ; tibiae and tarsi tawny. Wings cine- 

 reous, with very numerous transverse blackish dots, some of which 

 are confluent ; alulaj dark cinereous, very large ; halteres dingy 

 whitish. Length of the body 4 lines ; of the wings 7 lines. 



85. Platystoma producta, n. s. FcEin. Cinereo-nigra, robusta, 

 elongata, capite lutco, facie nigro vittata, antennis fulvis articulo 3 

 longissimo, thorace vittis quatuor cinereis, abdomine basi subtusque 

 rufescente, tibiis posterioribus rufis apice nigris, femoribus tibiisque 

 anticis rufo strigatis, alis cinereis punctis guttis fasciisque tribus ex- 

 terioribus nigricantibus, halteribus ])iceis. 



Female. Cinereous black, stout, elongate. Head luteous, brighter above 

 than in front, white behind and about the eyes ; a ferruginous point 

 on each side of the vertex; face with a black stripe between the white 

 grooves for the antennae. Antennae tawny, a little more than half the 

 length of the face ; 3rd joint linear, slender, full six times the length 

 of the 2nd ; arista simple, full twice the length of the 3rd joint. 

 Thorax with four slender cinereous stripes ; sides and pectus also 

 cinereous ; humeral calli tawny. Abdomen a little shorter and nar- 

 rower than the thorax, reddish on each side and beneath ; oviduct 

 black, short. Posterior femora red towards the tijis ; posterior tibiae 

 red, with black tips ; fore femora and fore tibiic slightly streaked with 

 red. Wings cinereous, with numerous blackish points and trans- 

 verse dots; apical part with three blackish bands, the 1st interrupted; 

 veins black ; discal transverse vein straight, upright, parted by full 

 one-third of its length from the border, and by more than its length 



