LIST OF DIPTERA. 



brown, with some colourless intervals near the base ; a large trian- 

 gular colourless spot resting on the fore border beyond the middle 

 of the wing ; a little beyond this the whole of the wing is colourless 

 to the tip, with the exception of two stripes, of which one runs along 

 the fore border and the other forms a very small angle beneath it ; 

 the hind border is slightly gray for near half the length, and there 

 is a colourless spot a little beyond ; wing-ribs tawny; veins pitchy, 

 tawny in the colourless parts of the wing ; borders of cross-veins 

 tawny ; lower cross-vein slightly oblique, very slightly curved inward 

 for half the length from the base, straight from thence to the tip, 

 separated by much more than its length from the middle cross-vein, 

 which is nearly perpendicular and very slightly curved inward ; 

 poisers tawny. Length of the body 3^ lines ; of the wings 7 lines. 

 a. Brazil. From Mrs. Noel's collection. 



Trvpeta Cronia, n. s., mas. Fulva, abdominis vitta apiceque piceis, 

 palpis antennis pedibusque fidvis, tibiis posticis obscurioribus, 

 alis fuscis basi maculis apiceque liinpidis, apice fusco bivittatis. 

 Body pale tawny, clothed with short tawny hairs : head and 

 chest beset with a few long black bristles, which form a row on each 

 side of the crown, and there is a cross fringe of short black bristles 

 behind the eyes : face pale tawny, its sides without bristles ; epistoma 

 very slightly prominent: eyes coppery red, varied with green; fore 

 part flat, its facets very much larger than those elsewhere : sucker 

 tawny, clothed with tawny hairs ; palpi tawny, beset with black 

 bristles : feelers tawny, as long as the face ; third joint downy, 

 slightly conical, nearly thrice the length of the second ; bristle 

 black, slender, clothed with very short black hairs, rather more than 

 twice the length of the third joint : abdomen elliptical, very little 

 shorter and narrower than the chest, clothed along each side with 

 stout black hairs ; a pitchy band towards the tip, which is also 

 pitchy : legs tawny, clothed with black and tawny hairs ; claws 

 black ; fore thighs beset beneath with black bristles ; hind shanks 

 dark tawny, thickly clothed with black hairs : wings dark brown, co- 

 lourless at the base, and adorned near it with some colourless spots ; 

 beyond the middle of the wing there is a large triangular colourless 

 spot, whose tip extends into the middle of the disk ; a little beyond 

 this spot the whole of the tip of the wing is colourless, with the ex- 

 ception of two broad, curved, dark brown stripes, the upper runs 

 along the fore border to the tip ; hind border of the wing slightly 

 gray from the base to the middle ; a little beyond the latter there is 

 a triangular colourless spot; wing-ribs and veins tawny; veins 

 pitchy in the brown parts of the wing ; borders of the cross-veins 

 tawny; a small tawny dot a little below the fore border; and some 



