630 LIST OF DIPTERA. 



Eristalis jEsymnus, n. s., mas. Piceus, pilisfulvis hirtus, thorace 

 antico fulvo, abdominis basi fulvo apice fasciis ferrugineis, an- 

 tennis piceis, pedibus ferrugineis, alis fuscis apice margineque 

 postico limpidis. 



Body broad, pitchy : head clothed with pale tawny hairs, fer- 

 ruginous in front : mouth pitchy : feelers pitchy ; bristle tawny, 

 feathered : eyes coppery, mingled with dark red ; facets on the fore 

 part of the crown larger than elsewhere: chest clothed with 

 dark tawny hairs, in front bright tawny, and clothed with hairs of 

 the same colour : abdomen short-obconical, clothed with tawny 

 hairs, as broad as the chest but not longer, bright tawny from 

 the base to near half the length, pitchy, with dark ferruginous bands 

 from thence to the tip : legs dark ferruginous, thickly clothed with 

 short black hairs ; claws and foot-cushions tawny ; tips of claws 

 black ; hind thighs not thick : wings dark brown, colourless at the 

 tips and along the hind borders ; wing-ribs, veins, and poisers 

 pitchy ; angle of the vein emitting a short branch. Length of the 

 body 4 lines ; of the wings 8 lines. 



a. East Indies. From Archdeacon Clerk's collection. 



Eristalis iEbutius, n. s., fem. Nigro-ceneus, capite nigro, fronte 

 fulvo, scutello purpureo, abdomine cyaneo-viridi, ceneo purpureo 

 maculisque nigris ornato, antennis pedibusque fulvis, femoribus 

 basi ccneis, posticis viridi-ceneis apice purpureis, tibiis apice tar- 

 sisque piceis, alis limpidis basi subfulvis. 



Head black, covered behind with silvery bloom, very bright 

 tawny in front : mouth pitchy; feelers bright tawny; bristle darker ; 

 eyes very dark red ; all their facets very small : chest and breast 

 dull brassy black, thickly clothed with short tawny hairs ; scutcheon 

 bright purple: abdomen nearly oval, thinly clothed with short tawny 

 hairs, a little longer and broader than the chest, bright coppery 

 green at the base ; then succeeds a broad purplish black band, 

 which is followed by a narrow shining purplish blue band on the 

 hind border of the second segment; third segment bluish green, 

 with a large transverse black spot on each side of the hind border ; 

 fourth segment bluish green, with a smaller nearly round black spot 

 on each side ; fifth segment purplish blue, shining ; tip black ; 

 third and fourth segments each adorned with a round black spot : 

 legs tawny, clothed with short tawny hairs ; thighs towards the base 

 and hips brassy ; feet and tips of the shanks of the fore legs and of 

 the hind legs pitchy ; hind thighs bright brassy green, purple to- 

 wards the tips ; claws black ; foot-cushions tawny : wings colour- 

 less, with a slight tawny tinge towards the base ; wing-ribs pitchy ; 



