232 LIST OF DIPTERA. 



one is open to the tip and to the hind border : the seventh joint is 

 confined to the hind border, and is divided by a very short vein from 

 the preceding ; the eighth joint communicates with the hind border 

 and with the base of the wing, and is separated from the seventh 

 by an areolet which is, more or less, open ; two of its sides form an 

 angle on the hind border : body dull reddish brown, slightly tinged 

 with a hoary bloom, and thinly clothed with short black hairs ; un- 

 der-side hoary, and thinly clothed with pale yellow hairs : head taw- 

 ny above the insertion of the feelers ; hypostoma ferruginous : 

 sucker black, much shorter than the chest ; the other parts of the 

 mouth ferruginous : feelers black; first and second joints ferrugi- 

 nous; third joint conical, piceous at the base; bristle nearly twice 

 the length of all the preceding joints : eyes dark red, clothed with 

 tawny down : a fringe of pale yellow hairs on the hind border of the 

 chest, and another on the base of the abdomen, which in the male, 

 is round at the tip, shorter than the chest, and rather broader than 

 long ; that of the female has the four hindmost segments very small 

 and narrow, and forming a short tail: legs ferruginous: wings 

 gray, ferruginous at the base and along the fore borders, and slightly 

 tinged with the same colour on the disks ; wing-ribs and fore bor- 

 der veins ferruginous ; the other veins black ; poisers tawny. 

 Length of the body 7— 9 lines ; of the wings 18—21 lines. 



a. New Holland. From the Rev. J. Wenham's collection. 



b. New Holland. From Mr. Argent's collection. 



Trichophtkalma Aurora, n. s., mas. et fern. Fusca, pilis roseis 

 vestita, thorace nigro-fusco univittato et bimaculato, abdomine 

 ferrugineo vittis tribus nigro-fuscis, antennis fulvis rufo cinctis 

 apice nigris, pedibus ferrugineis, alls limpidis. 

 Body thickly clothed beneath with rosy hairs : head clothed 

 with brown hairs above the insertion of the feelers, whose first and 

 second joints are tawny; the third joint is long-conical, red, black 

 at the tip ; the fourth joint is black, and rather longer than all the 

 preceding joints : mouth ferruginous ; sucker black, piceous at the 

 base, a little shorter than the chest: eyes brown, thickly clothed 

 with golden down : chest light brown, with a broad dark brown 

 stripe on the middle, and two small oblong spots of the same colour 

 on each side : a few brown hairs are mingled with the rosy fringe 

 that adorns the sides of the chest and the scutcheon : abdomen taw- 

 ny ; the back with three broad dark brown stripes, and on each side 

 a fringe of rosy hairs, and some of the same colour on the hind bor- 

 ders of the segments: legs ferruginous: wings colourless ; wing- 

 ribs and fore border veins ferruginous ; the other veins piceous ; 



