Marshall. — On New Zealand Diptera. 299 



Wings hyaline, with shaded patches similar to those on the 

 wings of Z. Jiavicoxa, but much smaller ; the white sub- 

 apical patch longer, and extending almost from the costa to 

 the posterior margin. Auxiliary vein bent slightly posteriorly ; 

 ■fifth longitudinal ending below the apex of the second sub- 

 marginal cell ; veins much stouter than in the last species. 



Though the veining of the wings is almost identical with 

 that in the last species, I have no doubt of the specific dis- 

 tinctness of the two types. The size of this species is much 

 greater than that of the last. The halteres are white instead 

 of black, the femora are not dark at the apex and are lighter 

 in colour, the abdomen is ringed with cinereous ; the wings 

 have the dark patches smaller and much more closely defined. 



Genus Brack ydicrania, Skuse. 

 Head roundish, compressed in the fore part, situated deep 

 in the thorax ; front broad, the anterior border prolonged as a 

 small triangle, which reaches to the basal joints of the an- 

 tennae. Eyes longish-round. Ocelli two, large. Palpi pro- 

 minent, incurved, foui'-jointed ; first joint small, second longer, 

 very robust ; third joint subclavate, about one-third longer 

 than the second ; fourth joint very slender, about equal to all 

 the others united. Anteunee projecting forward, somewhat 

 arcuated, 2 + 14 jointed ; first joint of scapus cyathiform, 

 second much shorter than the first, cupuliform, both setiferous 

 at the apex ; flagellar joints cylindrical, somewliat compressed 

 from the sides, with dense minute downy pubescence. Thorax 

 ovate, highly arched, with a short pubescence, setiferous on 

 the lateral and hind margins. Scutellum semicircular, seti- 

 ferous. Metathorax steep. Abdomen slender, in the male 

 with six, in the female with seven, segments, narrowed at the 

 base, cylindrical, or a little compressed from the sides ; anal 

 joint of the male moderately large ; female ovipositor very 

 short, with two small lamellae. Legs long, slender; inter- 

 mediate and hind femora rather broadly compressed ; tibiae 

 spurred, and having lateral spines, fore pair with one distinct 

 range of very small size on the inner side and a few very 

 small spines on the outer side, intermediate pair with a range 

 of small spines on each side, hind pair with two ranges of 

 longer spines on the outer side ; metatarsus of the hind tarsi 

 with some very minute . prickles. Wings longer than the 

 abdomen, oblong-oval, with moderately-rounded base, micro- 

 scopically haired. x\uxiliary vein very small, incomplete, 

 directed towards the first longitudinal vein ; costal vein not 

 extending beyond the tip of the second longitudinal vein ; 

 mai'ginal cross-vein situated about the middle of the first 

 longitudinal vein and over the base of the second submarginal 

 cell, the latter with a shorter petiole ; tips of the third longi- 



