269 
obsoleta ; cellula anali brevissima vix pone pseudalulam ex¬ 
tents a vena brevissima transversa clausa. Pedes elongati gra- 
cillimi, calcaribus duobus tibiarum parum elongatis, tibiis 
posticis difformibus, unguibus pidvillisque minutissimis. 
This genus is very close to the American genus Stylogaster, but 
especially differs from the description given thereof by M. Macquart, 
in the very minute condition of the anal cell of the wings. The form 
of the head and the unequal division of the haustellum, as repre¬ 
sented in M. Macquart’s pi. 13. tig. 15, are also characters at variance 
with those of the insects of which I have composed the present ge¬ 
nus. The anal cell is of small size in Stachynia, Mcq. {Dalmannia, 
Rob. D.), but it is still more minute in Stylomyia. The long slender 
legs and minute claws and pulvilli are also unlike those of all the 
other Myoparice. 
Stylomyia Leonum, Westw. (PI. XIX. fig. 4, and details.) 
Pufo-fviva, facie argenteo-sericea antennis rufo-fulvis arista nigra, 
vertice subpiano macula ovali nigra ocellos postice includente, 
hausiello nigro basi subtus parum pallidiori, thorace scutello 
abdomineque rufo-fulvis stylo concolori fascia lata fere apicali 
nigra, pedibus fulvis tarsis apice fuscis, tibiis duabus posticis 
dimidio basali fusco, apicali albido ; tarsis nigris. 
Long. corp. lin., stylo excluso, 4; expans. alar. lin. 6. 
Hab. in Sierra Leona, Africse. (In Mus. L. Hope.) 
The facets of the middle portion of the inner margin of the eyes 
are rather larger than the posterior ones. The wings are hut slightly 
tinged noth grey, and the veins are blackish. The extremity of the 
anal style with its filaments are fulvous coloured. The two posterior 
tibiee are very slender at the base; the apical half is dilated on the 
upper edge, the under edge not being quite straight.— Note. All the 
details are taken from the species figured. 
Stylomyia confusa, Westw. Fulva, facie argentea, vertice om- 
nino nigro; antennis fulvis articulo 3tio antennarum longitu- 
dinem 2di vix super anti, ovali-conico, arista nigra; tuberculo 
antennifero pallide fulvo, haustello nigro basi fulvo ; thorace 
supra nigro marginibus lateralibus angidisque anticis distincte 
et irregulariter luteis setis longis nigris. Scutello fusco setis 
duabus longis terminalibus nigris, pedibus quatuor anticis om- 
nino luteo-albidis tibiis apice obscuris, femoribus duobus posti¬ 
cis fascia angusta ante alteraque pone medium fuscis; tibiis 
dimidio basali fusco fascia lata media alba, tertia parte api¬ 
cali fusco, tarsis fuscis; abdomine fulvo segmentis 2do—bto 
margine postico tenui obscuro ; styli dimidio basali fulvo-rufo ; 
apicali nigro, genitalibus exsertis fulvo-rufis; corpore subtus 
fulvo-albido. Prcecedenti e tertia parte minor. 
Hab. -? (In Mus. Brit.) 
Although in general form and proportion of its parts, especially of 
the terminal style of its abdomen, the specimen of this species in the 
British Museum agrees exactly with St. Leonum, yet the short third 
