BY FREDERICK A. A. SKUSE. 873 



joints sub-elliptical, the terminal one elongate, twice the length of 

 the penultimate joint. Thorax testaceous or light yellowish- 

 brown, somewhat shining ; pleurae with a grey bloom. Halteres 

 ochreous, the club black. Abdomen deep violaceous-black, with 

 the first two segments testaceous ; ovipositor entirely ochreous or 

 light testaceous, the valves slender, slightly curved. Coxae and 

 femora testaceous, the latter with a black ring at apex ; genua 

 pale ; tibiae and tarsi black. Wings with a very pale yellowish 

 tint, more yellow at the base, with a spot and two fasciae of brown 

 (all equidistant), also costal cell and apex of wing (from inner end 

 of second posterior cell) clouded with brown ; the spot filling bases 

 of the basal cells ; first fascia extending from origin of second 

 longitudinal to tip of seventh longitudinal vein, interrupted only 

 in the second basal cell ; second fascia entire, extending from costa, 

 at stigma, to posterior margin at fifth longitudinal vein ; veins 

 dark brown. Auxiliary vein reaching costa opposite inner end of 

 first sub-marginal cell ; sub-costal cross-vein opposite inner end of 

 second sub-marginal cell; first longitudinal vein terminating in costa 

 about mid-may between tips of auxiliary vein and anterior branch 

 of second longitudinal ; marginal cross-vein indistinct, short, 

 about twice its length distant from tip of first longitudinal, and 

 opposite the middle of anterior branch of second longitudinal vein ; 

 praefurca angulated at its origin, of moderate length ; petiole of 

 first sub-marginal cell very short ; anterior branch of second lon- 

 gitudinal vein angulated at its base, sinuated, about half the 

 length of posterior branch ; second posterior cell half the length 

 of the third posterior ; discal cell somewhat longer than wide, the 

 great cross- vein at its inner end ; sixth longitudinal vein slightly 

 and seventh distinctly sinuated. 



Hah. — Lord Howe Island. One specimen. 



Obs. — The specimen from which this species is described was, 

 amongst other Diptera, etc., when collected, unfortunately placed 

 in spirit instead of being pinned at once, hence it has greatly 

 suffered in appearance and probably some of the colours have 

 been altered. 



