270 LIST OF DIPTERA. 



yellow hairs with a few black bristles on each side : breast covered 

 with a hoary bloom and with a few short yellow hairs : abdomen 

 thinly clothed with short yellow and longer black hairs : legs ferru- 

 ginous, beset with black hairs and bristles : wings brown at the 

 base, along the fore borders and at the tips ; the other part gray, 

 with the exception of three short oblique white bands, which divide 

 the brown from the gray colour ; the disks of the areolets are paler 

 towards the tips of the wings ; wing-ribs and veins piceous, the lat- 

 ter black towards the tips ; fore border veins ferruginous ; poisers 

 tawny, with piceous knobs. Length of the body 3J lines ; of the 

 wings 10 lines. 



a. New Holland. Presented by the Haslar Hospital. 



Anthrax serpentiger, n. s. Nigra, abdomine subtus ferrugineo, an- 

 tennis pedibusque nigris, tibiis tarsisque fulvis, alis fuscis, vittis 

 cinereis striaque serpentina limpida. 



Body black, clothed with ferruginous hairs : feelers and mouth 

 black : eyes piceous : sides of the chest clothed with white hairs, of 

 which there are also some on the hind border: hoary hairs are 

 mingled on the abdomen with the ferruginous hairs, which prevail 

 chiefly on the hind borders of the segments ; under-side of the ab- 

 domen dark ferruginous : legs black, and beset with black bristles ; 

 shanks and feet tawny, the latter piceous towards the tips : wings 

 dark brown ; cross-veins clouded with black ; areolets varied with 

 gray streaks, which are most distinct towards the hind borders of the 

 wings ; a narrow colourless serpentine streak begins in the disk at a 

 little beyond two-thirds of the length of the wing, and extends 

 thence to the tip ; wing-ribs and veins black ; poisers tawny, with 

 piceous knobs. Length of the body 3 lines; of the wings 8 

 lines, 

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



Anthrax plena, n. s., fern. Nigra, angusta, pilis nigris albis ful- 

 visque vestita, thoracis lateribus scutello ventreque piceis, pedibus 

 fulvis fernoribus nigris, alis cinereis vittis maculisque plurimis 

 fuscis, marginibus anticis fuscis, basifulvis. 



Body black, rather narrow : head clothed with black hairs, and 

 having a few tawny hairs near the base of the feelers, which like the 

 mouth are black: eyes red: chest and breast clothed with long 

 black hairs, among which are some shorter tawny hairs, and there is 

 a fringe of white hairs along each side ; scutcheon and sides of the 

 the chest piceous: abdomen more thinly clothed with long black 

 hairs, and also furnished with short white hairs along its sides ; un- 

 der-side piceous: legs beset with a few black spines and hairs; 



