106 LEPIDOPTERA. 



LiTHOSiA Caniola, Hiibner. 



Of this species, which is sometimes so excessively abundant 

 in the streets of Florence, a few specimens have occurred in 

 Ireland. Mr. Henry Doubleday, writing in the " Zoologist," 

 p. 7407, observes, '^ Mr. Barrett took four specimens in Ire- 

 land last August." Mr. Barrett in the " Zoologist," p. 7799, 

 observes of it, " this species occurred sparingly in sheltered 

 spots on the coast in the middle of August; it was over in 

 fourteen days from the appearance of the first specimen. It 

 flies gently at early dusk, and is partial to the flowers of rag- 

 wort and Galium verurn." Some specimens were exhibited 

 at the September Meeting of the Entomological Society of 

 London. 



Guenee remarks (Ann. Ent. Soc. France, 4th series, vol. . 

 i*. p. 48) that ^^ Lithosia Caniola is common in central and 

 southern France in June. It is found in towns, in houses 

 and public buildings ; I have found it in the most elevated 

 galleries of the cathedral at Chartres. The larva feeds 

 principally, if not exclusively, on the lichens which grow on 

 walls, and especially on the tiles of roofs." 



Guenee's diagnosis of the species is as follows : — 



" AlaB anticas albo-griseae, sericeae, fimbria concolori, 

 vitta costali albidiore, costa tenuissime fulva, versus medium 

 convexa; subtus griseae, margine terminali late albo. Alae 

 posticse albae, vix luteo tinctse, margine interno levissime 

 griseo, diluto. Caput collareque fulva. Thorax abdomenque 

 murina, ano in mare luteo, in fcemina concolori. 



Lithosia Sericea, Gregson. 

 Under the name of Lithosia Molyhdeola the Lithosia 

 Sericea of Gregson has been described by Guenee. It would 

 appear that Gregson's name has priority and must be re- 

 tained. 



