Three Trochobulae, from New-Zealand and Tasmania. 265 



Head, rostrum, palpi and antennae brown, the latter sometiines 

 reddish on the second Joint; the proximal part of the flagellum is 

 almost moniliform, the joints 1—4 somewhat urn-shaped, with a little 

 brush of raicroscopic hairs on one sidc and some scattered longer 

 hairs on the other; the rest of the flagellum has more elongate joints, 

 with scattered short hairs. Thorax brown or reddish-brown, with 

 four dark-brown stripes and a covering of a yellowish sericeons pollen. 

 Abdomen reddish-brown, with somewhat darker lateral margins. (The 

 extent and darkness of the brown of the body is very variable.) Legs 

 rather long, yellowish-brown, with a distinet dark brown space just 

 betöre the tip of the femora, and a narrower yellow ring immcdiately 

 proximad of the brown ; knees paler. Halteres with a brown knob. 

 Male forceps (very much shrunken in drying) has apparcntly the 

 same strueture as that of the European species annidata figured by 

 Mik, 1. c. The ovipositor resembles Loew's ligure of it (I.e. f. 14). 



Length from 12 to IG mm; length of the wing from 13 to 23 mm. 



Hab.: New-Zealand, South-Island; five males and one female, 

 reeeived from Prof. Hutton in Ohrist- Church, and Helms, in Grey- 

 mouth. The first speeimen I reeeived was from Dr. C. A. Dohrn, 

 and I believe it came from the North-Island. 



Trochobola vennsta n. sp. cf 

 This species will be easily recognizable by the coloration of the 

 wings, and I venture to describe it, although I have but a Single 

 speeimen. 



Body brownish; the usual thoracic stripes brown, coalescent, 

 leaving only a paler space in the humeral region; antennae brownish- 

 yellow, scapus brown; halteres with a brown knob. Femora brownish- 

 yellow, with a brown ring before the tip; tibiae and tarsi yellowish- 

 brown (the mouldy condition of the speeimen prevents nie from 

 describing it more accurately). — Wings: the ocellar spots, which 

 distinguish the other Trocholiolae exist here too, but are rendered 

 less distinet by the numerous brown irregulär spots, which tili their 

 intervals. The basal portion of the wing is densely iilled with litlle 

 brown spots assuming a more or less irregularly ocellar shape, with 

 still smaller brown spots in their centre; the very distinet crossvein 

 between the sixth and seventh longitudinal veins is clouded with 

 brown; in the middle of the wing a kind of crossband is formed by 

 larger and darker brown spots, one on the anterior margin, surrounding 

 the origin of the praefurca, the other on the posterior margin, near 

 the end of the sixth vein; the space between these larger spots is 

 filled with irregulär smaller ones; upon this dark crossband follows 



