124 Mr. E. Meyrick on the classification of 



modesta, Stgr. 

 ^turanica, Ersch. 

 *ciliaria, Men. 

 ^argcntaria, H.-S. 



jourdanaria, Vill. 



opacaria, Hb. 



117. AxiA, lib. 



Face rougli-haired. Tongue weak. Palpi short, porrected, 

 rough-scaled. Auteunse iu ^ bipectiuated to apex. Thorax with 

 collar forming an erect crest, patagia loosely rough-scaled, beneath 

 hairy. Femora slightly hairy; posterior tibiae in <? not dilated, 

 with all spurs present. Fore wings in ^ without fovea ; 10 con- 

 nected with 9. Hind wings with 8 approximated to coll throughout 

 and to basal fourth of 7, thence diverging. 



The peculiar structure of vein 8 of the hind wings dis- 

 tinguishes this genus at once, but it is notwithstanding 

 nearly allied to Prosopolopha, and is probably at the 

 same time one of the most primitive types of the 

 Geoinetrina, retaining indications of its affinity to other 

 groups. Only one species is known, which inbabits 

 South-west Europe, and appears always rare. 

 margarita, Hb. 



APPENDIX OF STATISTICS OF NEUBAL VAEIATION 

 IN THE SELIDOSKMID.F.. 



As in the Sdidoseniidfe the structure of veins 10 and 

 11 of the fore wings is in many instances liable to vary 

 to an unusual extent within the limits of the same genera 

 and species, I give here an analysis of the results 

 obtained from the inspection of the specimens examined 

 for the purpose of this paper. Before doing so I have 

 to acknowledge my indebtedness to Miss M. Kimber, 

 F.E.S., for much valuable assistance ; Miss Kimber very 



