286 HIPPOBOSCID.E. 



of the costal ; prajbracliial vein at about one-fourth of the breadth of 

 the wing from the fore border, parallel with the cubital as far as the 

 prffibrachial transverse, more slight from thence to the hind border ; no 

 cliscal transverse vein ; pobrachial vein slight along the whole length 

 except near the base; anal vein slight but distinct. Abdomen short- 

 obconical, slightly bristly at the tip, a little shorter than the thorax ; 

 sutures of the segments indistinct. Legs stout, almost bare, wide 

 apart, of moderate length ; tibia? a little shorter than the femora ; tarsi 

 hardly more than half the length of the tibia? ; ungues long, stout, 

 curved, bidentate ; onychia small. 



1. pallida, Meig. Zw. vi. 230. 1. pi. 63. f. 21-24 (1830). Fulva, 

 capite testaceo-vario, thoracis disco fuscescente, margiue postico testaceo, 

 alls cinereis. Long. 2^ ; alar. 6 liu. 



Tawny, paler beneath. Head testaceous along the eyes and in front. 

 Eyes brown. Disc of the thorax brownish; hind border testaceous. 

 Wings grey, hyaline ; veins dark brown. Ungues black. 



Infests birds. Rare. (E.) 



Genus TIL ORWITHOMVIA. 



Ornithomyia, Olfers, Leach Eproboscid. Ins. (1815); Latr. ; Meig.; 

 Westw. ; Mcq. ; Blanch. Ilippobosca p., L. ; F. ; D. G. ; Schr. ; 

 Gmel. ; Fal. Ornythomyza, Zett. 



Caput mediocre aut parvum, subellipticum, depressum, coriaceum. Ca- 

 put mediocre. Oculi magni, oblongi. Ocelli tres. Os capitis ti'iente 

 brevius. Thorax longitudine latins, suturis duabus transversis. Ala? 

 completa?, longse, venis distinctis, transversis approximatis. Abdomen 

 brevi-obconicum, thorace brevius. Pedes longitudine mediocrcs. 

 Ungues sat longi, curvati, tridentati. Onychia parva. 

 Body of middle or rather small size, subelliptical, depressed, tough, 

 coriaceous, shining, slightly hairy and bristly. Ilearl of moderate size, 

 more than half the breadth of the thorax, broader than long, very bristly 

 in front. Front flat, concave in front, decreasing in breadth from the 

 vertex to the face, which is somewhat excavated. Epistoma concave. 

 Eyes large, oblong, slightly convex, bare, not prominent, with very 

 small facets. Ocelli three. ]\Iouth less than one-third of the length 

 of the head. Antenna? extremely short, ciliated ; first and second joints 

 indistinct ; third round ; arista setiform, bare, with only one visible 

 joint. Thorax broader than long, bare on the disc, slightly bristly on 

 the sides, with two transverse sutures, one in front, interrupted in the 

 middle, the second bctvv'een the wings, slightly curved. Sternum broad. 

 Wings rather long and stout ; costal vein ending at beyond three-fourths 

 of the length of the wing ; subcostal and mediastinal veins ending near 

 tosether at before one-third of the length ; radial vein ending at before 



