486 Mr. E. Meyrick on the classification 



A genus of considerable size, and quite cosmopolitan. 

 cosmodactijla, Hb. similidactyla, Dale. 



acanthodactyla, Hb. nemoralis, Z. ; isodactyla, 

 tesseradactyla, L. Z. 



farfarella, Z. Bertrami, Eossl. 



gonodactyla, Schiff. ochrodactyla, Hb. 



Metzneri, Z. *capnodactyla, Z. 



Zetterstedtti, Z. rhododactyla, F. 



75. Agdistis, Hb. 



Face with more or less developed horny prominence ; ocelli dis- 

 tinct ; tongue developed. Antennae four-fifths, in ^ filiform, 

 shortly ciliated. Labial palpi moderate, ascending, second joint 

 with rough projecting scales beneath, terminal joint short. Maxil- 

 lary palpi obsolete. Tibiae simple, outer spurs one-half inner. 

 Fore wings entire ; vein 2 from near angle, 3 and 4 approximated 

 or stalked, 5 widely remote from 4, from near middle of transverse 

 vein, 7 from near 8, 8 and 9 stalked, 10 from near 8, or sometimes 

 8 separate, 9 and 10 stalked, or all three separate. Hind wings 

 entire, on lower margin of cell beneath with a pecten of dense 

 scales in disc, and inner margin roughened beneath with scales ; 

 vein 2 from middle of cell, 3 and 4 approximated at base, 5 

 absent, 6 remote from 7, 8 shortly approximated to 7, posteriorly 

 divergent. 



A European genus, extending into Africa. It is 

 small and compact, immediately separable from the 

 whole of the family, and all the species are very similar 

 superficially, but it includes remarkable variations in 

 structure. I believe, however, that these will eventually 

 be connected by transitional forms, and that there 

 is no necessity for generic subdivision, nor have I at 

 present been able to obtain as much material for examin- 

 ation as I could wish. The occasional separation of 

 veins 8 and 9 of the fore wings is only paralleled in this 

 group in the Siculodidce. In the roughened dark scales 

 on the under surface of the inner margin of hind wings 

 may be seen the origin of the black scale-teeth of the 

 preceding genera. The differences in the frontal promin- 

 ence, which are considerable, are of value in specific 

 distinction. 



