LIST OF DIPTERA. 291 



Bombylius decoratus, n. s., mas. et fern. Cinereus, pilis fuscis 

 fulvis flavis albisque vestitus, thorace cano quadrivittato , scutello 

 rufo, pectore cano, abdomine flavo univittato pilisque fuscis et 

 albis utrinque fasciculato, antennis nigris, basi pedibusque fer- 

 rugineis, tibiis fulvis, alls subcinereis, basi costd maculisque 

 duabus subcinereis. 



Body gray : head with a small tuft of brown hairs on the 

 crown about the eyelets, clothed in front with brown and tawny 

 hairs, and beneath with white hairs : feelers black, like those of B. 

 crassus ,♦ first and second joints ferruginous : mouth black, piceous 

 towards the base, shorter than the chest : palpi tawny, hairy : eyes 

 green, with a bronze tinge : chest clothed with tawny and yellow 

 hairs, and having four hoary stripes, the outer stripes are clothed 

 with white hairs, and on each side below them there is a tuft 

 of brownish and red hairs : breast hoary, and clothed with pale yel- 

 low hairs: scutcheon dark red : abdomen with a stripe of pale yel- 

 low hairs on the back, which is clothed with brown hairs, and there 

 i are thick tufts of reddish brown and white hairs on each side and at 

 ' the tip ; the disk of the under-side is clothed with short red hairs : 

 legs ferruginous, clothed with yellow hairs and darker bristles ; 

 shanks tawny, with ferruginous tips : wings like those of B. major, 

 slightly gray, brown 1 at the base and along the fore borders till very 

 i near the tips ; this brown hue passes into dark gray towards the tip, 

 I but retains its own colour, where it joins the paler gray part, it oc- 

 i cupies rather less than half the surface, decreases in breadth from 

 the base to the tip, and has three or four curves along the gray part ; 

 | there is also a small brown spot on the vein at the tip of the wing ; 

 wing-ribs and veins ferruginous, the latter piceous towards the tips ; 

 poisers yellow, shaded here and there with darker colour. Length 

 ! of the body 5 — 5J- lines ; of the wings 12 — 13 lines. 



, a. West Australia. From Mr. Clifton's collection. 



1 Bombylius tetratrichus, n. s. Cinereus, subtus canus pilisque albis 

 vestitus, thorace flavo piloso, abdomine fulvo piloso apiceque 

 fusco utrinque fasciculato, pedibus fulvis, tarsis piceis, alis ci- 

 nereis ad costam fulvescentibus. 



Head wanting : chest gray, most thickly clothed with shining 

 I pale yellow hairs, which are white near their roots : breast hoary, 

 : and very thickly clothed with shining white hairs : abdomen clothed 

 I with tawny hairs, which are longer than those of the chest, and 

 I there is a thick tuft of long brown hairs on each side at its tip ; un- 

 i der-side hoary, and thickly clothed with silky white hairs : legs taw- 

 ny, clothed with pale yellow hairs and with a few dark tawny 



PART II. 2 D 



