in the Collection of W. W. Saunders, Esq. 141 



the costa to the end of the interior border ; exterior part sh'ghtly 

 greyish. 



Length of the body 3 lines ; of the wings 8 lines. 



Valley of the Amazon. 



Anthrax angustipennis ? 



Nigra, abdomine fasciculis duobus basalibus albis,apice argentea, 

 alis vitreis longis angustis, vittd costali nigra attenuata, inci- 

 suris quatuor. 



Anthrax angustipennis ? Macq. Dipt. Exot. ii. p. 64, 26, PI. 21, 

 fig. 9. 



Black, narrow ; abdomen with a white tuft on each side at the 

 base; apical "third part silvery white; wings vitreous, long and 

 narrow, black along the costa, the black part successively de- 

 creasing in breadth from the base, with four indentations on its 

 hind side. 



Length of the body 3 — 3^ lines ; of the wings 8 — 9 lines. 



Valley of the Amazon. 



GALAPAGOS. 



One species. 



CANARY ISLES. 



Three species and two groups. 



AFRICA. 



Seven groups and seventy species. 



Group 3. Dipt. Saund. 166. 

 Anthrax commiles. 



Nigra, thoracis lateribus fulvo-pilosis, scutello ferrugineo, ab- 

 dominis lateribus basi ferrugineo-pilosis apice nigro-pilosis, 

 maculis quatuor lateralibus, ventre basi fulvo, alis sublim- 

 pidis, basi costaque fuscis. 

 Black ; thorax with tawny hairs on each side ; scutellum fer- 

 ruginous, except at the base ; abdomen with ferruginous hairs on 

 each side at the base, and with black hairs towards the tip, two 

 white lateral spots at about half the length, and two sub-apical, 

 underside tawny towards the base ; wings nearly limpid, dark 

 brown on the whole breadth towards the base, and for more than 

 three-fourths of the length along the costa ; the outline of the 

 brown part clearly defined and almost straight. 



Length of the body 43 lines ; of the wings 11 lines. 

 Port Natal. 



