120 Mr. E. Meyrick on the classification of 



107. PsoDos, Tr. 

 Face with long rough hairs. Tongue developed. Palpi moderate, 

 porrected, with long projecting hairs. Antennae in <? stout, shortly 

 ciliated. Thorax roughly hairy beneath. Femora hairy ; posterior 

 tibiae in 3^ not dilated, with all spurs present. Fore wings in 3- 

 without fovea ; 10 sometimes absent, 11 anastomosing or connected 

 with 12 and seldom with 9 also. Hind wings with 6 and 7 some- 

 times short-stalked, 8 approximated to cell to middle. 



This small genus, confined to the European mountains, 

 is derived from Crocota, with close collateral affinity to 

 Lignyoptera. 



alticolaria, Mn. 



coracina, Esp. 



trepidaria, Hb. 



alpinata, Sc. 



quadrifaria, Sulz. 



108. Hybebnia, Latr. 



Face with appressed scales or shortly rough-scaled. Tongue 

 developed or weak. Palpi short or rather short, porrected, shortly 

 rough-scaled. Antennae in ^ either bipectinated, pectinations 

 sometimes short and terminating in fascicles of cilia, apex simple ; 

 or with two very short processes on each side of each joint, emitting 

 long fascicles of cilia. Thorax with small triangular anterior 

 crest, hairy beneath. Femora glabrous ; posterior tibiae in ^ not 

 dilated, with all spurs present. Fore wings in <? without fovea ; 

 10 sometimes out of 9, sometimes anastomosing or connected with 

 9, 11 sometimes out of 10, l^sually anastomosing with or running 

 into 12, rarely absent. Hind wings with 8 approximated to cell to 

 middle. Female semiapterous or apterous. 



The genus is closely allied to Crocota, and probably 

 derived with it from Biston. It is characteristic of the 

 European region, though stragglers occur elsewhere also. 



leucophtearia, Schiff. 



bajaria, Schiff. 



inarginaria, Bkh. 



defoliaria, CI. 



aurantiaria, Esp. 



aiikeraria, Stgr. 



declinans, Stgr. 



