94 Transactions. — Zoology. 



brown. Tarsi and knees of the middle and hind legs fulvous. 

 Length, 2 mm. 



Hab. Howick, near Auckland (Captain Broun). 



The head is as broad as the thorax, the eyes very wide 

 apart; mouth large; antennae short, the third joint oval, 

 pointed at the end, not much longer than the second ; arista 

 bare. A long bristle on each side of the mouth and a pair of 

 bristles on the vertex, but no fronto-orbital bristles. Thorax 

 rounded. Abdomen naked. Legs stout, all the tibiae widen- 

 ing gradually towards their distal ends, bristly, a strong 

 bristle near the end, and several on the middle tibiae. Tarsi 

 hairy, the first joint of the posterior pair short, not much 

 longer than broad, shorter than the second joint. Ungues 

 rather large. Wings and halteres absent. 



Captain Broun informs me that this little fly is found on 

 the ground, and is capable of jumping. 



Genus Bobbobus, Meigen (1803). 



Wings fully developed ; the fourth longitudinal developed, 

 but the fifth incomplete beyond the discal cell. 



Borborus empiricus, sp. nov. 



Uniform dark-brown ; legs black. Wings tinged with 

 brown, the veins dark-brown, the second section of the 

 fourth longitudinal only faintly developed ; distance between 

 the two cross-veins about two and a half times the length of 

 the posterior cross-vein ; fifth longitudinal convex posteriorly, 

 so that the discal cell is broader in the middle than at either 

 end. Scutellum with bristles. Fore femora not thickened ; 

 middle tibiae with stout bristles ; hind tibiae without spurs. 

 Length, 2 mm. 



Hab. Christchurch (F. W. PL). 



The first longitudinal vein reaches to about one-third the 

 length of the wing ; the second to about two-thirds ; while 

 the third ends a little before the tip. The costa stops at the 

 end of the third longitudinal. The third section of the costal 

 vein is nearly as long as the second. The hind metatarsi are 

 but slightly dilated, and about three-quarters of the length of 

 the second joint. The hind tibiae are nearly bare. The fore 

 tibiae have some slight bristles, not so stout as those on the 

 middle tibiae. 



The following species have been omitted as not inhabiting 

 New Zealand : — 



Pelecorhynchus ornatus, Schiner = P. personatus, Walker 

 from Queensland. 



