90 DIPTERA OP AUSTRALIA, 



appearing as a continuation of the first longitudinal ; second pos- 

 terior cell in punctiform contact with the discal ; discal cell pentan- 

 gular. 



Hah. — Mount Wilson, Blue Mountains, N.S.W. (A. Sidney 

 Olliff). One specimen in January. 



Obs. — The length of the body as above stated is undoubtedly 

 below the mark, the specimen before me being much shrunken. 



401. Plusiomyia spectabilis, sp.n. 



(J. — Length of antennae 0-210 inch ... 5'33 millimetres. 



Expanse of wings 0-790 x 0-210 ... 20-05x5-33 



Size of body 1-150 x 0115 ... 29-21x2-92 



Head grey ; rostrum and r:)asal joints of antennse light brown ; 

 suctorial labella, palpi, and flagellar joints black ; first flagellar 

 joint with a short tooth-like branch beneath near the apex ; 

 branches on the following six joints about J longer than the 

 joints. Thorax dull slaty-grey, with faint indication of a 

 yellowish median line ; whitish reflections on the lateral borders ; 

 pleura? hoary with two narrow longitudinal brown stripes, the 

 first from pronotum (and collai-e) to origin of wings, the second 

 indistinct, running across the middle of plenrse ; scutellum and 

 metathorax with a hoary bloom. Halteres ochreous, with a black 

 club. Abdomen greyish-brown, with indistinct blackish dorsal 

 and lateral stripes on the first three or four segments ; the 

 terminal segments more completely sufi'used with blackish. Coxae 

 with a hoary bloom. Femora fulvous-brown, black at the apex. 

 Tibiae black, fulvous-brown at the base. Tarsi black. Wings 

 tinted anteriorly (above the fifth longitudinal vein) with pale 

 brown, paler towards the apex, darker towards the base, with a 

 whitish streak extending from middle of second basal cell to 

 costa (between the tip of the second longitudinal vein and its 

 anterior branch) ; posterior margin greyish, beneath the fifth 

 longitudinal vein whitish, especially towards anal angle. Ulti- 

 mate section of the anterior branch of the second longitudinal 



