﻿620 Prof. Mario Bezzi's Report on a Collection of 



Type ^ from North Nyasa, Deep Bay to Vu a, May 14, 

 1909 {Dr. J. B. Davey) ; additional sj)ecimens, all males, 

 from Deep Bay, November 3, 1909 ; near Virauli Mt., 

 July 23, 1909 ; from Karonga to Fort Hill, near Lufira 

 River, May 30, 1909 ; from Akamanga, South Rukuru 

 River, October 10, 1909 (all by Dr. J. B. Davey). 



Type Ç and a male from Nyasaland, Fort Johnston, 

 2000 ft., June 1910 {Dr. A. H. Barclay). 



10. Anthrax, Scopoli (1763). 



This is not the Anthrax of authors, but as I showed in 

 my paper of 1908 {Zeitschr. f. JIymeno2)terol. u. Dipteraloy., 

 p. 34) is the same as Argyramocha, Schiner, as restricted 

 by Dr. Sack in his monograph of 1909. 



The genus seems to be very well represented in the 

 Ethiopian fauna, as the collection contains many species ; 

 those before me can be distinguished as follows : — 



1 (8). Ujjper branch of the fork of the third vein bent at a right 



angle in the middle, and with an appendix at the angle. 



2 (3). Apical half of the wings with many confluent black spots ; 



basal appendix very long ; discal cell darkened in the 

 greater part ; squamulae dark. . . pithecius., Fabr. 



3 (2). Apical portion of the wings wholly hyaline, or with 2-3 



separated black spots only ; discal cell in the greater 

 part clear ; basal appendix short ; squamulae white. 



4 (5). The basal dark marking of the wings extends broadly beyond 



the small cross-vein, and is in contact with the spots at 

 the base of the cubital fork and at the end of the discal 

 cell ; no hyaline spot before the small cross-vein ; 

 plumula with a black fringe . . diffiisus, Wied. 



5 (4). Dark marking ending a little beyond the small cross-vein, 



and not coalescing with the cubital spot ; end of the 

 discal cell not spotted ; hyaline S23ot at the end of the 

 first basal cell just before the small cross-vein ; plumula 

 with a white fringe. 



6 (7). Species of greater size, with larger rounded brown spots 



at the bases of cubital fork and third posterior cell ; 

 anal cell closed at the wing margin . aygulus, Fabr. 



7 (6). Species of smaller size ; a small cloud only at the base of 



cubital fork, that at the base of third cell not separated ; 

 anal cell open .... homogeneus, sp. n. 



8 (1). Upper branch of the cubital fork gently curved or bent at 



an obtuse angle, without appendix. 



