DIP'i'ERA. 249 



near the hind border of the second segment ; disks of the third and fourth 

 segments black : legs clothed with short tawny hairs ; fore-thighs and 

 midd/e-thighs black tenth taumy tips; hind-thighs thick, taivny with black 

 tips i fore-shanks tatcng ivith black tips ; middle-shanks taivny ; hind-shanks 

 black, curved, tvith a tawny band; fore-feet and hind-feet pitchy; middle- 

 feet tawny with black tips ; claws tawny with black tips : foot-cushions 

 lawny: icings colourless; wing-ribs and veins tawny ; veins black towards 

 the tips ; poisers tawny. Length of the body 4 lines ; of the wings 7^ 

 lines. 



East Indies. 



Eristalis semicirculus, Mas. 



Niger, abdominis maculis quatuor el segmentorum marginibus posticis 

 fulins, antennis piceis, pedibus nigris, tibiis tarsisque anlerioribus basi 

 fulvis,femoribus posticis crassis, alis limpidis. 



Black : head adorned with a hoary covering : eyes bronzed : feelers 

 pitchy : chest adorned ivith tivo pale tatcny bands, the first straight, the other 

 concave : breast with a hoary tinge : abdomen obconical, a little shorter 

 than the chest, adorned with four taivny spots, of which the first pair are 

 much larger than the second pair ; hind borders of the segments tawny : 

 shanks and feet towards the base and knees taivny ; kind-legs black with thick 

 thighs, ferruginous knees and curved shanks : wings colourless ; wing-ribs 

 tawny ; veins black, tawny at the base ; poisers tawny. Length of the body 

 3 lines ; of the wings 6 lines. 



Honduras. 



Eristalis copiosus, Mas. 



Niger, capite fulvo supra nigra, thorace cyaneo trivittalo, abdominis vitta 

 lata ventreque fulvis, apice cyaneo, circulo ante apicali viridi-ceneo, 

 antennis ferrugineis, pedibus fulvis, femoribus posticis apice nigris, 

 tibiis jyosticis piceis fulvo cinclis, alis stiblimpidis. 



Head black, bright taivny and clothed with tawny hairs in front : eyes 

 bright red ; facets above larger than those elsewhere : feelers ferruginous ; 

 sixth joint black : chest bright blur, adorned ivilh three velvety black bands, 

 middle one broad and straight ; .side pair intcrruptocl, nearly spindle- 



