of the Family Tabanidas. 179 



DiATOMINEURA, Roild. 

 Wings witli first posterior cell open. Eyes hairj. 



Diatomineura exeuns, ? , Walker, Dipt. Saund. pt. i. p. 12 

 (1850). 



The palpi in this species )mve a very short, broad, second 

 joint, triangular and leaf-like in shape, concave in the middle. 

 Wings have no appendix. 



Hab. Brazil. 



iJiatomineura leucofhorax, ? , sp. n. (PL I. fig. 8.) 



Tiiis was wrongly labelled alhithorax, Macq., but it has no 

 golden-yellow pubescence on the hind segments of abdomen. 

 Black. Antennse and palpi black ; the first joint of the former 

 clothed with long black hairs, longer than the second joint. 

 Palpi are short ; the second joint concave, broader at base, 

 tapering to a point. The upper part of the face grey, clothed 

 with black hairs ; the frontal stripe the same colour, with black 

 pubescence. Beard black. Proboscis short. The thorax 

 and scutellum covered with dense greyish-white pubescence; 

 the hairs on the posterior half are very long, the sides and 

 breast clothed with black hairs. Abdomen wholly black, 

 shining, with some black pubescence. Ijegs black ; the femora 

 clothed with long black hairs, the tibia? of the posterior legs 

 with whitish pubescence on tlie outside edge ; pulvilli yellow. 

 Wings hyaline. Halteres black. Length 12 millim. 



Hab. Chili {Edmonds). 



Diatomineura viridiventriSf Macq., Dipt. Exot. i, p. 108 

 (1838) ; Blanchard, Hist. fis. y polit. Chile, vii. p. 389 

 (1854) ; Schiner, Reise der Novara, p. 99 (1866). 



Three females. 



Hab. Chili (^Edmonds). 



The Pangom'a ocellus of Walker is not a Pangonia at all, 

 but belongs to the Tabaninse. 



Europe. 

 Pangonia, Latr. 



Pangonia, Rond. 



*P. marginata, Fabr. \_Tabanus haustellatus, Fabr., Spec. Ins. ii. p. 4. 55 

 (1781); Fabr., Eut. Syst. iv. p. 562 (1794). Tamjylossa kaustel- 

 lata, Meig., Klass. i. p. 173 (1804) ; Meig., Syst. Beschr. ii. p. 24 

 (1838). Pangonia cellulata, Brulle, Exp. Mor., Zool. pi. 47. 1 



12* 



