of the Family Tabanidae. 103 



present at base of wings and on breast. Scutellum with a 

 fringe of short silky yellow hairs. Halteres yellow. Abdo- 

 men clothed with black pubescence ; a small hoary grey spot 

 on each side of the third segment and a large oblong one on 

 the fourth segment, extending from each side towards the 

 middle; these spots are still more distinct on the underside 

 of abdomen, forming a wave-like band on the fourth segment. 

 Legs black ; anterior tibia with greyish pubescence. Wings 

 hyaline, yellow at base and on the fore border; veins yellow. 

 Posterior cells open, also the anal cell ; the anal vein is curved. 

 Length 15 millim. 



Bah. Chiloe, S. America. 



^Pelecorhynchus auranfiacus, ? , sp. n. (PI. I. fig. 2.) 



Reddish brown. Antennae and palpi red; the latter short, 

 clothed with orange-yellow hairs; the beard and hairs on the 

 breast are the same colour ; the face and frontal stripe are 

 light ferruginous, clothed with short yellow pubescence. 

 Thorax covered with orange-rufous hairs, very deep in colour 

 on the sides and on the scutellum ; there is a large tuft of 

 white hairs below the root of the wings. Abdomen clothed 

 with dense orange-rufous pubescence; the last segment is 

 rather bare, with wrinkled transverse lines. Legs yellow, the 

 posterior tibia red. Wings hyaline, yellow at base and on 

 the fure border; transverse veins slightly clouded. All pos- 

 terior cells and the anal one open ; anal vein curved. Length 

 15 millim. 



Hab. Chili {Edmonds). 



This may perhaps be the same as Fangonia viilpes, Macq., 

 Dipt. Exot. Suppl. 4, p. 23, but he takes no notice of the 

 generic characteristics, though a few pages later he describes 

 Fehcorhynchus as a new genus. 



SciONE, Walker. 



Scione, Walker, Dipt. Saund. pt. i. p. 11 (1850). 



Diclisa, Schiner, Eeise der Novara (1866) ; Verb, zool.-bot. Ges. 

 Wien, xvii. p. 310 (1867). 



This genus was formed by Walker for Pangonia incompleta, 

 Macq., who based it on the venation of the wings, the fourth 

 posterior cell being closed, besides the first posterior, and the 

 dividing nerve between the second and third posterior cell 

 interrupted. Schiner did not consider he was obliged to 

 make use of the name iScione, but established Diclisa for the 

 same h\ incornpleta and included two new species, D. maculi- 

 pennis and di'stincta. Pangonia singularis and alhifasciata^ 



