BY FREDERICK A. A. SKUSE. 789 



Head, including rostrum, palpi and antennae, black ; the rostrum 

 2J-3 times the length of head. Thorax dark brown or fuscous, 

 levigate, with four fulvous brown stripes ; intermediate pair 

 beginning at anterior border, coalescing at or a little before trans- 

 verse suture and continuing to the scutellum ; lateral ones broader, 

 starting below the humeral pits, reaching a short distance beyond 

 the suture, and opposite origin of wings ; pectus, scutellum and 

 posterior portion of metanotum sometimes more or less fulvous. 

 Halteres yellow. Abdomen dark brown or fuscous, the segments 

 bordered posteriorly with yellowish; genitalia brownish or yellowish- 

 brown. Legs brown ; femora becoming deep brown before tip ; 

 the tip of femora and extreme base of tibiae yellow. Wings 

 pellucid, with a pale brownish tint ; veins, especially those en- 

 closing discal cell, and the origin of prsef urea, slightly clouded with 

 brownish ; yellow between costal and first longitudinal veins ; 

 veins and stigma dark fuscous ; the later oblong. Auxiliary vein 

 reaching costa a little before or opposite inner end of sub-marginal 

 cell; sub-costal cross- vein at its tip, sometimes apparently obsolete ; 

 praef urea nearly straight ; small cross-vein about half the length of 

 the inner end of the second posterior cell ; discal cell longer than 

 broad, the great cross-vein at or a little beyond its inner end. 



Mab. — Generally distributed in N.S.W. ; September to April 

 (Masters and Skuse). 



Obs. — I have a series of about forty specimens for comparison. 

 In some examples the light brown stripes on the thorax are very 

 distinct, whilst in others the thorax is of a uniform dark brown 

 with very faint or no traces of stripes. 



313. Rhamphidia fulvithorax, sp.n. 



(J. — Length of antennae 0*050 inch ... 1*27 millimetres. 



Expanse of wings 0-260 x 0-060 ... 6-62 x 1*54 



Size of body 0-240x0-030 ... 6-09x0-76 



Head greyish-brown; rostrum about the length of thorax, 

 testaceous ; palpi testaceous ; antennae dark brown. Thorax 



