626 LIST OF DIPTERA. 



numerous little dark spots ; facets on the fore part of the crown 

 larger than elsewhere : chest and breast tawny, thinly clothed with 

 short tawny hairs ; chest adorned with four bronze stripes ; outer 

 stripe on each side interrupted by an oblique tawny band ; scutch- 

 eon coppery green, with a tawny border ; breast partly bronzed : 

 abdomen obconical, tawny, as long as the chest, adorned with 

 a single black stripe, and with a brown band along the nearly black 

 hind border of each segment : legs tawny, clothed with short tawny 

 and black hairs ; hips and tips of hind thighs pitchy ; tips of 

 the thighs and of the shanks of the four front legs ferruginous ; hind 

 shanks pitchy, pale yellow at the base, ferruginous about the middle ; 

 tips of feet pitchy ; claws and foot-cushions tawny ; tips of claws 

 black : wings colourless ; a small black spot on the middle of the 

 fore border ; wing-ribs and veins tawny, the latter black towards the 

 tips ; poisers pale yellow. Fern. — Abdomen black above, with four 

 yellow spots on each side ; these spots are in pairs, and decrease 

 successively in size from the base to the tip ; there are also 

 three pairs of spots on the sides of the abdomen ; the first pair on 

 the back join the first side pair, the second are nearly separated 

 from the second side pair, and the third pair are quite distinct from 

 the third side pair : tips of hind thighs ferruginous, black beneath ; 

 hind shanks mostly ferruginous. Length of the body 5 lines ; of 

 the wings 10 lines. 



a. New Holland. Presented by J. Hunter, Esq. 



b. New Holland. Presented by the Earl of Derby. 



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



Eristalis Antidotus, n. s., mas. Fulvus, thorace vittis quatuor 

 scutelloque ceneis, abclomine basi albido, fasciis duabusfuscis or- 

 nato, apice viridi, segmento quarto piceo margine postico ferrugi- 

 neo flavoque fasciato, antennis pedibusque fulvis, tibiis basi 

 flaws, tibiis posticis ferrugineis, alis limpidis. 



Head covered with a white bloom, clothed with short tawny 

 hairs, beset with a few black hairs at the crown, yellow in front : 

 mouth black : feelers tawny ; a black stripe on the edge of the third 

 joint ; bristle black towards the tip : eyes yellow, slightly bronzed ; 

 facets on the fore part of the crown larger than those elsewhere : 

 chest and breast tawny, covered with tawny down : chest adorned 

 with four bronze stripes; scutcheon slightly bronzed; breast 

 bronzed about the hips : abdomen obconical, deep tawny, a little 

 shorter but hardly broader than the chest ; a whitish narrow band 

 at the base ; a brown band along the hind border of the second seg- 

 ment, widening and forming an angle in the middle of its fore bor- 

 der ; third segment with a similar band along its hind border, 





