DIPTERA. 243 
fore border; wing-ribs tawny; veins black, tawny at the base; poisers 
pale tawny. Length of the body 54 lines; of the wings 12 lines. 
Bolton. United States. 
Genus MERODON, Latreille. 
Meropon craovs, Fem. 
Aineo-viridis, capite flavo, thorace fulvo quadrivittato, abdomine fulvo 
a@neo vario, apice cupreo flavo bifasciato, antennis ferrugineis, pedi- 
bus fulvis, femoribus viridibus, alis limpidis. 
Head yellow, clothed with yellow hairs, black and clothed with black 
hairs on the crown, whence a broad black stripe proceeds to the base of the 
feelers: eyes black, clothed with very short white hairs: mouth pitchy: 
feelers ferruginous ; third joint darker; sixth black, ferruginous at the 
hase: chest and breast brassy-green : chest adorned with four tawny stripes, 
clothed with tawny hairs which are longest and thickest on each side and 
on the scutcheon; breast tinged with gray, clothed with pale hairs: abdo- 
men obconical, tapering towards the tip, longer than the chest, tawny and 
clothed with tawny hairs for half the length from the base, this part 
is adorned with a coppery half-circle at the base, and with two rhomboidal 
coppery spots in the disk ; hind half coppery, adorned with two yellow arched 
bands, hind borders of its segments clothed with yellow hairs: legs tawny, 
clothed with tawny hairs; thighs green with tawny tips; each hind-shank 
armed with a very stout tooth, one side of which is serrated ; claws black, 
tawny towards the base ; tips of the hind-feet dark tawny: wings colowr~ 
less ; wing-tibs pitchy ; veins black, tawny at the base and along the fore 
border; alule white, fringed with long yellow hairs; poisers tawny. 
Length of the body 5—6 lines ; of the wings 9—10 lines. 
Albania. 
MeEropon Bicotor, Fem, 
Niger, thorace trivittato, scutello abdomineque fulvis, hujus macula basali 
vittaque nigris apice ferrugineo, antennis pedibusque nigris, genubus 
fulvis, alis limpidis. 
Black: head covered above with tawny down, hoary and clothed with 
whitish hairs beneath; epistoma and sides of the peristoma very promi- 
