LIST OF DIPTERA. 621 



Eristalis iEgyptius, n. s., mas. Niger ', scutello abdomineque ful- 

 vis hujus segmentorum marginibus poslicis apiceque nigris, oculis 

 fasciatis, antennis piceis, pedibus ferrugineis, femoribus tibiisque 

 basi tarsisque fulvis, alis limpidis. 



Body black, clothed with short tawny hairs: mouth black: 

 feelers pitchy ; bristle tawny : eyes red, slightly bronzed, adorned 

 with five black bands : scutcheon tawny : abdomen obconical, taw- 

 ny, a little longer than the chest : hind borders of the segments and 

 tip black : legs ferruginous, clothed with short tawny and black 

 hairs ; thighs and shanks tawny towards the base ; feet tawny, with 

 ferruginous tips ; claws and foot-cushions tawny ; tips of claws 

 black : wings colourless ; wing-ribs and veins tawny, the latter 

 pitchy towards the tips ; poisers yellow. Length of the body 5 

 lines; of the wings 10 lines. 



a. Egypt. Presented by Sir G. Wilkinson. 



Eristalis caliginosus, n. s., fern. Niger, scutello abdominis macu- 

 lis duabus magnis et segmentorum marginibus posticis Jlavis , an- 

 tennis pedibusque nigris, alis cinereo fulvis. 



Body black : head clothed with short black hairs, and in front 

 with whitish hairs and down ; crown covered with brown down : 

 eyes bronzed ; all the facets very small : chest and breast clothed 

 with short tawny hairs ; scutcheon yellow ; its fore border black : 

 abdomen obconical, hardly longer or broader than the chest, thinly 

 clothed with short tawny hairs, adorned with a very large yellow 

 spot on each side of the second segment ; sides of the segments 

 adorned with steel-coloured spots, their hind borders yellow : legs 

 black, clothed with short black and tawny hairs ; knees ferruginous ; 

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

 thighs rather thick ; hind shanks slightly curved : wings pale gray- 

 ish tawny, darker along the fore borders, especially in the middle, 

 deep brown at the base ; wing-ribs and poisers pitchy ; veins black, 

 pitchy towards the base. Length of the body 6 lines; of the 

 wings 12 lines. 



Eristalis cyaneifer, n. s. Niger, thoracis fasciis duabus una fulva 

 altera cyanea, scutello abdominisque maculis magnis lateralibus 

 fulvis, pedibus ferrugineis, femoribus nigris, alis flavo-fuscis. 



Body black : head wanting : chest deep black, clothed with 

 short dark tawny hairs, adorned in front of the wings with a 

 dull tawny band, and behind the wings with a deep blue band 

 which terminates on each side in a tawny spot ; scutdheon tawny ; 



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