180 Transactions. 



longer than the ultimate, which is fusiform, and broader than the former, 

 the first quarter tawny, the remainder dark brown caused by a dense 

 pubescence amongst which are one or two delicate hairs. Occiput de- 

 pressed, shiny black, with no reflections. 



Thorax and scutellum brilliant bluish-green, the 4 scutellar spines short 

 and tawny, those of the S longer than in the $ ; dorsum thinly dusted with 

 tawny, humeri slightly tawny. Halteres greyish-white, but darker at the 

 head. 



Legs very minutely clothed with stiff hairs, on the whole dark tawny, 

 anterior tarsi fuscous ; apex of middle protarsi and remaining 4 joints 

 fuscous ; posterior tarsi greyish in certain lights. Protarsi longer than 

 sum of remaining joints, more so the anterior ; posterior epitarsi slightly 

 longer than those of the other legs ; posterior femora thickened. 



Wings (fig. 7^, except for the tawny subcostal and marginal cells, un- 

 clouded, being either clear or slightly coloured ; costal cell normal, not 

 widened ; anal angle but distinctly curved ; anterior cross-vein and 3rd longi- 

 tudinal not having a common origin from the 2nd vein, the cross-vein leaving 

 the 3rd vein about half its length from the 2nd vein so that the 1st sub- 

 marginal cell is more or less proximally truncated or obtuse ; cross-vein 

 not short, anteriorly oblique. Third vein not angulated but gently curved, 

 the anterior branch arising at a slightly acute angle and bisinuated to the 

 costa, the 1st sinuation the stronger ; this branch is about twice the length 

 of anterior cross-vein. Vein between the discal and 5th posterior cells 

 not quite as long as the anterior cross-vein. Of the 4 veins from the discal 

 cell the 3rd may be absent, rudimentary, or short (absent in the figure). 

 The distance from the posterior margin of the confluence of the 5th and 

 6th longitudinals equal to the length of the anterior cross-vein. 



Abdomen with 7 segments, of uniform width in the $ and not as broad 

 as the thorax ; in the $ broader than the thorax and but little narrower at 

 the base. First segment of a deep shiny purple, the remainder clothed with 

 a dense silky and silvery pubescence which in certain lights shows a darker 

 band on the posterior margin of each segment, due to a slight depression. 

 There are longer silvery hairs at the sides. At times the silvery vestiture 

 may be thinner, showing the ground-colour of the segments (except the 1st) 

 to be tawny. This last feature was noticed in a male.* The 8th segment, 

 when visible, is bare and of a deep purple, the genital organs tawny. 



<J. Length, 9-5 mm. ; wing, 7*5- mm. 



$. Length, 10 mm. ; wing, 8-25 mm. 



Habitat. — Wellington (Howes) ; Mount Arthur Tableland, taken in hot 

 sunshine, January, 1889 (Hudson) ; Kaitoke, November, 1910 (Hudson) ; 

 Arthur's Pass, 3,000 ft., December, 1914 (Hudson). 



This species, on account of abdomen, is unique. Although I have not 

 yet met with specimens, it is apparently a common species. 



E. hoheria n. sp. 



A medium-sized slender and dark-coloured fly, with tawny bands on 

 legs and clouded wings with clear spaces. 



$. Head broader than thorax at humeri ; eyes bare, dichoptic more 

 so toward the vertex, occupying most of head in profile, no transverse 

 depression, facets of uniform size lower two-thirds darker than upper third ; 

 front shiny black with short hairs and a patch of white, slightly yellow. 



* Since writing the above I have found this species in large numbers in the bush on 

 the banks of the Manawatu River during December. It abounded in the open glades 

 in sunshine. Most of these specimens had the pubescence of the abdomen very thin. 



