BV <;. 11. iiAj;i>Y. 119 



•one band through base of discoidal cell to the tip of the 

 5th pdsterior vein ; a second from stigma through tip of 

 discoidal to apex of 4th posterior ; a third half way be- 

 tween this to the tip of the wing, reaching into the 3rd 

 ]X)sterior cell ; and finally the wing is bordei-ed fuscous 

 from the apex to the aiial vein. The sexes are vei^y simi- 

 lar, the eyes contiguous in $ , and widely sepai'ate in 2 . 

 In respect of the foi-mer the abdomen is much more slender 

 and cylindrical. 



Length $ 5-0 iiiin., $ 1-7 iniii. , 



Hab. Tasmania, Hobart, September to November; 

 New South Wales, Svdncv. June ; Western Australia, 

 Perth. 



The specimen utili.'-ed for the above description is in 

 tiio Australian Museum, and was captured at Neutral 

 Bay, Sydney, on the 7th .lune, 1917. (Collector. — A 

 ^lusgrave.) 



The species is abundant during |>art of the year, and 

 will probably he found to have a wide distribution in Aus^ 

 tialia. 



Fam. LEPTIDJ:. 



The known Australian genera may be characterised as 

 follows : — 



Thorax, scutcUum, and abdomen without bristles, the 

 biistles of the legs if |)jesent arc either thin or small. 

 Abdomen either elongate and ta))eiing, or conical. Anal 

 cell closed, or ^t most narrowly open at border; cubital 

 vein forked ; 4 or 5 posterior veins, all reaching margin 

 except in genus Sjianio/isis, where the third ))Osterior vein 

 is stunted if present. Antenna? three jointed at least, the 

 third joint bearing an appendage of apical joints in the 

 form of an arista thickened and composed of more than 

 one joint, thickened basally and unjointed. or hairlike. 

 Tibia; with or without apical spurs. 



Mefopoiiin riihrirtjis. Macq., belongs to the Sfrafio- 

 III jl a da'. 



C'/iri/siip//i(s (iK/iiiix, Macc[., belongs to, and is treated 

 in, the /l/n/pln'fhr above. 



The following key will separate the known Australian 

 Genera : — 



Rey tn the Genera of AuxtraJ ion Leptifhc 



1 Five posterior cells 2. 



Four posterior cells 5. 



1! Fourth posterior cell closed Clesthenia . 



Fourth posterior cell open 3. 



