48 Transactions. — Zoology. 



short, situated about midway between the origin of the third 

 longitudinal vein and the inner end of the second posterior 

 cell ; fourth longitudinal vein starting from the base of the 

 fifth longitudinal vein ; fork of the fifth longitudinal vein 

 united at its base to the fourth longitudinal vein by a short 

 cross- vein ; sixth longitudinal vein perfect. 



Bolitophila luminosa, sp. n. 



? . Length of antennse, OOQOin. (2-27mm.) ; expanse of 

 wings, 0-250in. x OOTOin. (6-34mm. x I'TTmra.) ; size of 

 body, 0-380in. x 0-040in. (9-64mm. x 1-Olmm.). 



Antenna) very slender, as long as the head and thorax 

 combined ; joints of the scapus yellow, tinged with brownish ; 

 flagellar joints elongate, progressively diminishing in thick- 

 ness, brown. Hypostoma brown. Palpi yellow. Front and 

 vertex black. Thorax black or very deep brown, levigate, 

 with a median yellow line, the humeri and lateral borders 

 pale-yellow or whitish ; two convergent rows of short black 

 hairs from humeri to scutellum ; some black bristly hairs 

 above the origin of the wings ; pleurse deep-brown, tinged 

 with pale - yellow ; scutellum black ; metanotum brown, 

 bordered laterally with yellow. Halteres pallid, the club 

 black. Abdomen slender, sub-cylindrical, five times the length 

 of the thorax, dusky-brown, the segments indistinctly, espe- 

 cially the hindermost ones, tinged with yellowish anteriorly ; 

 densely clothed with very short black or dark-brown hairs ; 

 extremity and lamellae of the ovipositor yellow. Legs long 

 and very slender. Coxae pale-yellow or whitish, the fore and 

 intermediate pairs with the extreme apex, and the hind pair 

 w^ith almost the apical half, dusky-brown ; trochanters dusky- 

 brown ; femora pale-yellow or whitish, the liind pair black at 

 the apex ; tibiae and tarsi black. Tibial spurs black. In the 

 forelegs the tibite and metatarsi of about equal length ; the 

 tarsi twice the length of the tibia;. "Wings shorter than the 

 abdomen, pellucid, with a delicate yellowish tint, and almost 

 the apical half infuscated with grey. Costal vein uniting with 

 the tip of the third longitudinal vein somewhat beyond the 

 apex of the wing ; auxiliary vein terminating in the costa 

 opposite or somewhat beyond the inner end of the second 

 posterior cell, the sub-costal cross-vein situated near its base ;. 

 first longitudinal vein running straight into the costa opposite 

 a point before the tip of the posterior branch of the fourth 

 longitudinal vein ; third longitudinal vein gently arcuated at 

 its base, strongly arcuated towards its tip ; posterior branch 

 of the fifth longitudinal vein abruptly reaching the margin. — 

 F. A. A. Skuse. 



Hab. Wellington, New Zealand (G. V. Hudson). Type- 

 specimen in the Australian Mtiseum, Sydney, N.S.W. 



