BY FREDERICK A. A. SKUSE. 779 



Jlab. — Knapsack Gully, Blue Mts. ; North Waratah, near 

 Newcastle, and Middle Harbour, near Sydney; six specimens 

 (Skuse). 



306. Geranomyia (Triphana) lutulenta, sp.n. 



9. — Length of antennae 0-070 inch ... 1-77 millimetres. 



Exp^anse of wings 0-350 x 0-090 ... 8-89x2-27 



Sizeof body 0-280x0-040 ... 7-lOxl-Ol 



Brown. Head including rostrum, palpi and antennae black ; 

 front with a greyish bloom. Palpi three-jointed. Thorax levigate, 

 more or less ochreous or ochreous- brown at humeri; pleurae with 

 greyish bloom. Halteres infuscated, the base of stem ochreous- 

 yellow. Ovipositor obscure testaceous. Coxae and femora testa- 

 ceous, the latter brown at the tip ; tibiae and tarsi obscure testaceous 

 or brownish, all the joints tipped with brown ; except the last three 

 tarsal joints entirely blackish. Wings with a slightly greyish tint, 

 with small indistinct greyish cloudings; stigma same tint as clouds ; 

 first and fifth longitudinal veins marked with brown near the base 

 of wing ; a squarish greyish cloud at origin of second longitudinal 

 vein reaching costa anteriorly and fourth longitudinal vein poste- 

 riorly ; a small cloud enveloping tip of auxiliary vein and neigh- 

 bouring portion of the first longitudinal vein ; a roundish cloud 

 at base of sub-marginal cell, enveloping extremity of prsefurca, and 

 coalescing with stigma ; cross-veins and both ends of discal cell also 

 clouded ; veins brown, the costa and first and fifth longitudinal 

 veins yellowish, but the first longitudinal brown where enveloped by 

 cloudings. Auxiliary vein reaching costa opposite middle of 

 praefurca; sub-costal cross-vein a short distance from its tip; 

 prgsfurca angulated near its origin ; discal cell closed, or opened 

 posteriorly ; the great cross-vein at or before its inner end. 



^«6.— Mount Kosciusko, N.S.W., 5000 ft. ; March (Helms). 



Two S2?ecimens in Coll. Australian Museum. 



Obs. — This is the only species in which 1 have observed the 

 discal cell open among all the Australian Limnobina examined by 



me. 



