10 PACHYRHINA QUADRIVITTATA. 



joints fnscous, thickened at the base and provided with 

 rather long hairs , narrow in the middle , then thickened 

 again. Rostrum and palpi yellow. Thorax with four black 

 longitudinal bands, which are united in front by a black 

 border; the two lateral bands surround the shoulderknots; 

 scutellum with a black longitudinal band ; metanotum with 

 a large quadrangular black spot; pleurae unspotted. The 

 black markings of the abdomen consist of a transverse 

 band on the first segment , a round spot on the second , 

 the third and following segments with trigonal spots , which 

 have the tips directed forwards; the last segments are 

 almost entirely black ; the genitals reddish-yellow , on the 

 upper part with a pair of hooks, which are curved to- 

 wards each other. Legs yellow ; tips of the femora black; 

 tibiae and tarsi testaceous. Halteres yellow ; the knob , 

 except its tip, blackish. Wings yellowish-cinereous, darker 

 towards the end ; stigma pale brown , preceded by a smaller 

 spot of the same colour above the point where the radial 

 vein issues from the cubcostal vein ; furcated cell very 

 shortly pedunculate; discal cell quadrangular. 

 A (ƒ from Java (Kuhl). 



22. Pai-hyrhma triplasia , n. sp. 



Flava ; thorace vittis tribus latis nigris , laterihus antice 

 recurvatis ; pleuris immaculatis ; ahdomine vittis tribus nigris^ 

 dorsali latiori , interrupta ; antennarum jiagello nigro , I'er- 

 ticillato .) articulis reniformibus ; alis cinerascentibus , stigmate 

 dilute fusco. — Long. 10 mm. ((ƒ), 13 mm. (9)- 



Reddish-yellow. A spot on the nose and another behind 

 each of the eyes , black ; the former in the 9 indistinct. 

 Antennae of the cT as long as head and thorax together, 

 those of the 9 shorter; the two basal joints yellow; the 

 following ones black, dilated at the base and at the end, 

 with exserted hairs. Palpi testaceous , the terminal joint 

 black. Thorax with three broad , black, longitudinal bands, 

 the middle one enlarged in front and reaching the col- 

 Notes troiTi the Leyclen Museum, Vol. "VIl. 



