APPENDIX. 201 



7. Walker, List of Dipt. Ins, IV. 



Page 995. Ortalis? costalis, n. s., Fern. 



Nigra, abdomine nigro-eeneo, pedibus nigris, alls limpidis ad 

 costam fusco bimaculatis, stigmate nigro. 



Head wanting : chest dull black, beset with a very few black 

 bristles : abdomen sessile, brassy-black, shining, slightly spindle- 

 shaped, much longer but hardly broader than the chest : legs 

 black, clothed with very short black hairs : wings colorless, with 

 a small brown spot just above the tip, and another at the base of 

 the fore border, where the vein is thickened ; a black band along 

 the middle of the fore border ; wing-ribs and veins black ; third 

 longitudinal vein straight, with the exception of a very slight 

 angle at its junction with the lower crossvein, which has two 

 very slight curves, the upper inward, the lower outward. Length 

 of the body If line; of the wings 3^ lines. 



St. Martin's Falls, Albany River, Hudson's Bay. 



[In this description, after the words "third longitudinal vein 

 straight," something seems to be wanting, as this vein does not 

 at all meet the posterior crossvein. The species very likely also 

 belongs to the Ulidina. Loew.'j 



8. Macquart, Dipt. Exot. Suppl. IV, Tab. XXVI, fig. IT. 



Page 289. ITrophora antillarum. 



Viridi-nigra. Fronte testacea, alis fasciis duabus, apiceque 

 fuscis. 



Long. 1^ lin. $. Palpes noirs. Face d'un vert noiratre 

 luisant, a leger duvet blanc sur les cotes. Front testace; une 

 tache verte sur le vertex. Antennes noirs. Thorax et abdomen 

 d'un vert luisant noiratre. Pieds noires ; premier article des 

 tarses testace. Ailes claires, a base jaunatre ; une premiere 

 bande passant sur la premiere nervure transversale, et n'atteignant 

 pas le bord interieur ; la deuxieme entiere, passant sur la deuxieme 

 transversale ; extremite a tache brune, liee a la deuxieme bande 

 par le bord exterieur egalement brun. 



Des Antilles. 



[Almost undoubtedly an Ulidina. Loew.] 



