A New Species of Tachino-Oestrid from South Africa. 467 



flies there is a broad medio-veutral baud formed by the uncovered 

 sternites the lateral sides of which are concealed iu the end of the fold 

 of the tergites, it becomes easy to locate the Tachino-Oestridae in the 

 Rhiuophorinae group of G-irschner, the new genus Rondaniooestrus 

 coming next to Rondania, Rob. Desv. 



III. Neuration. The wings have a real prolongation which is 

 somewhat short, however, on the 4th nervure ; the 1st hind cell is 

 petiolate (fig. 3). 



FIG. 3. 



RONDANIOOESTRUS APIVOETJS, u. sp. 



$ . G-riseus, thorace uigro-quadriliueato, abdomine atro-variegato, 

 anteuuis pedibusque testaceis, alarum nervo 5^ atque nervis trans- 

 versalibus externis fusco limbatis. 



Long. 8 mm. 



Orbits grey, narrower than the frontal band, which increases in 

 width from back to front and is brown ferruginous in colour ; geuae 

 and epistome ashy white or light grey, facial convex folds as well as 

 the anterior part of the epistome with a testaceous sheen, the rest 

 greyish with the depression of the median folds ferruginous. Antennae 

 testaceous, 3rd joint slightly dark, cheta black. Body grey, the inser- 

 tion pore of the setae with a black circle ; thorax with the shoulders as 

 well as a dot in the centre of the postalar callus testaceous ; it bears 

 four black dorsal lines, the median shortening after the suture, the 

 lateral interrupted in semi-colon shape ; scutellum wholly grey ; abdo- 

 men with a dull sheen slightly metallic on the median part of the first 

 segments ; on certain light there are discernible ill-defined darkish 

 hind bauds and darker black squares situated on the sides of the 

 abdomen aud the centre of segment 3. The hypopygium instead of 



