242 E. W. FERGUSON. 



to trace — it seems absent in some specimens. One speci- 

 men without locality, in the collection, has the veins much 

 lighter, almost yellowish in colour ; it is possibly distinct, 

 but is an old specimen and may have faded; unfortunately 

 both antennae are broken. 



I have much pleasure in naming this species after Dr. 

 J. B. Oleland who was the first to discover these flies. 



Spaniopsis longicornis, u. sp. 

 Plate XXVI, figs. 1, 3, 7. 

 ? Size comparatively large for the genus; most nearly 

 allied to S. clelandi. Antennae with long thick terminal 

 arista; thorax dark greyish-brown with three longitudinal 

 darker lines, and an interrupted dark line at sides ; abdomen 

 dark brown with paler apical bands to segments; venter 

 darker grey; legs bicolorous; wings hyaline. 



Pace light grey; front dark brown. Proboscis black. 

 Palpi yellow. Antennae black, very long, basal joints short, 

 third joint twice as long as wide, terminating in a long 

 thickened arista, not quite twice as long as the rest of the 

 antenna. Thorax greyish-brown with three darker longi- 

 tudinal lines, the median narrower than the others, the 

 two submedian apparently connected at the base, also with 

 an interrupted dark line near side, connected across with 

 submedian line at apex and at level of transverse suture. 

 Scutellum brown. Abdomen dark brown with a broad 

 greyish band at apex of segments, interrupted in middle, 

 basal and apical segments greyish. Venter and sides dark 

 grey. Legs bicolorous; femora brown, the anterior pair 

 almost black, with the base and apex of a lighter more 

 yellowish colour; tibiae yellowish, slightly darkened at 

 apex; tarsi with basal joints yellowish, infuscate at apex, 

 the other joints dark. Wings hyaline, veins black, stigma 

 brownish; venation as in genus, third veinlet always 

 present, longer than in S. tabaniformis, reaching almost 



