Zoological Society. 149 



elongatis simplicibus in cavitate truncata insidentibus. Alee 

 breves cellula \ma postica clausa pediculata et postice dila- 

 tata, vena obliqua celhdam postice contiguam claudente sub- 

 obsoleta ; cellula anali brevissima vix pone pseudahdam ex- 

 tensa vena brevissima transversa clausa. Pedes elongati gra- 

 cillimi, calcaribus duobus tibiarum parum elongatis, tibiis 

 posticis difformibus, unguibus pulvillisque 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. fig. 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. 



Rufo-fulva, facie argenteo-sericea antennis rufo-fulvis arista nigra, 

 vertice subplano macula ovali nigra ocellos postice includente, 

 haustello 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. 

 jong. Corp. lin., stylo excluso, 4 ; expans. alar. lin. 6. ' 



lab. in Sierra Leona, Africse. (In Mus. D. Hope.) 

 The facets of the middle portion of the inner margin of the eyes 

 are rather larger than the posterior ones. The wings are but slightly 

 tinged with grey, and the veins are blackish. The extremity of the 

 anal style with its filaments are fulvous coloured. Tlie two posterior 

 tibiae 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 articido 3tio antennarum longitu- 

 dinem 2di vix superanti, ovali- conico, arista nigra; tuberculo 

 antennifero pallide fulvo, haustello nigro basi fulvo ; thorace 

 supra nigro marginibus lateralibus angulisque 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 alter aque pone medium fuscis ; tibiis 

 dimidio basali fusco fascia lata media alba, tertia parte api- 

 cali fusco, tarsis fuscis ; abdomine fidvo segmentis 2do — 5to 

 margine postico tenui obscuro ; styli dimidio basali fulvo-rufc^; 

 apicali nigro, genitalibus exsertis fulvo-rufis ; corpore subtus 

 fulvo-albido. Prcecedenti e tertia parte minor. 



Hab. ? (In Mus. Brit.) 



