LIST OF DIPTERA. 617 



Eristalis dives, n. s., mas. Nigro-ceneus^ thorace vittis cinereis, ab- 

 domine purpureo ornato, antennis fulvis, pedibus nigro-azneis, 

 tibiis ferrugineis piceo fasciatis, basi flavis, tarsis fulvis, alis 

 fulvis, macula parva costali nigra. 



Body brassy black : head beset on the crown with a few black 

 hairs, covered in front with tawny down ; on the front, whose sides 

 are adorned with oblique tawny stripes : mouth pitchy : feelers 

 tawny: eyes bright bronze, covered with numerous little black 

 spots ; fore part of the crown flat, not spotted, composed of much 

 larger facets than those elsewhere : chest indistinctly striped with 

 gray : breast covered with tawny down and hairs : abdomen deep 

 black, obconical, a little shorter but not broader than the chest, 

 thinly clothed with very short black hairs ; hind borders of the seg- 

 ments and tip brassy, partly tinged with purple ; the purplish 

 bronze band on each segment is interrupted by a space, which 

 is partly occupied by a brassy spot : legs brassy black, clothed with 

 short tawny hairs ; shanks yellow at the base ; fore and middle 

 shanks ferruginous, with pitchy bands ; feet tawny, with darker tips; 

 tips of hind feet black ; claws and foot-cushions tawny ; tips of 

 claws black : wings tawny, with a small round black spot on the 

 middle of the fore border ; wing-ribs ferruginous ; veins pitchy, fer- 

 ruginous towards the base ; poisers tawny. Length of the body 6 

 lines; of the wings 11 lines. 



Eristalis Saxorum, Wied. Auss. Zweif. ii. 158, 9. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 



G. Barnston, Esq. 



b. ? From Mr. Children's collection. 



Eristalis inflexus, n. s., mas. et fern. Niger, fulvo subfuscus, scutello 

 subceneo margine fulvo, segmentorum marginibus posticis flavis, 

 antennis piceis, pedibus nigris, tibiis basi flavis, alis limpidis dis- 

 co subfuscis. 



Body black ; head covered with whitish down, clothed with 

 short white hairs ; a ferruginous space at the base of the feelers ; 

 mouth black : feelers pitchy ; bristle tawny : eyes black ; all the fa- 

 cets very small : chest and breast covered with a dark tawny bloom, 

 clothed with tawny hairs ; scutcheon slightly bronzed ; its border 

 tawny : abdomen nearly oval, a little longer and broader than the 

 chest, thinly clothed with short tawny hairs, more thickly covered 

 with white hairs at the base and on each side of the second segment ; 

 hind borders of the segments pale yellow : legs black, clothed with 



PART III. 3 I 



