68 



GRACILARIA SEMIFASCIA. 



[Plate I. Fig. 3. 



green ; liead very pale, reddish- 

 brown. 



Geographical Distribution. 

 This species does not seem to be 

 widely or generally distributed; in 

 Encrland it has occurred in few loca- 



o 



lities ; south of London it has been 

 noticed at Mickleham ; westward at 

 Bristol; northward at Whittlebury, 

 Llangollen and Scarborough. On 

 the Continent it has been met with in 

 Germany, at Vienna and at Freiburg 

 in the Breisgau, and in Switzerland 

 at Ziirich. 



Synonymy. 

 This insect was first described by 

 Haworth, in his " Lepidoptera Bri- 

 tannica," under the name of Gra- 

 c'lllaria Semifama; this name is re- 

 tained by Stephens in his " Illustra- 

 tions." Zeller in 1847 described it 

 from a single pale specimen in the 

 second volume of the " Linnsea 

 Entomologica," under the name of 

 Gracilaria p'lcipennella. Stainton next 

 described it in the " Transactions of 

 the Entomological Society of Lon- 

 don," vol. 1, N. S., as Gracilaria 

 Semifascia ; and again under this 

 name in his volume of the '• Insecta 

 Britannica." Frey adopts this name 

 in his " Tineen und Pterophoren der 

 Schweiz," and gives a detailed de- 

 scription of several of the varieties. 

 Herrich-SchafFer, in his " Schmetter- 

 linge von Europa," describes this 

 species under the name of Gracilaria 

 picipennellaf but his figure 824 will 

 not apply to this insect at all ; his 

 figure 822 {Inconstans) appears to 

 have been made from a pale-coloured 

 specimen of Gracilaria Semifascia. 



dorsal d'un vert fonce; la tete d'un 

 brun-rougeatre tres-pale. 



La Distribution Geograpliique. 



Cette espece ne parait pas etre 

 tres-repandue; en Angleterre on ne 

 la trouve que dans peu de localites; 

 au sud de Londres on I'a observee a 

 Mickleham, vers I'ouest a Bristol, 

 vers le nord a Whittlebury, a Llan- 

 crollen et a Scarboroufrh. Sur le 

 Continent on I'a observee en Alle- 

 magne a Vienne, et a Fribourg dans 

 le Brisgau, et en Suisse a Zurich. 



Synonymie. 

 Cet -insecte fut d'abord decrit par 

 Haworth, dans ses " Lepidoptera Bri- 

 tannica," sous le nom de Gracillaria 

 Semifascia, lequel nom est conserve 

 par Stephens dans ses ^'Illustrations." 

 En 1847, Zeller I'a decrit d'apres un 

 seul individu pdle, dans le deuxieme 

 volume dela"Linnaea Entomologica," 

 sous le nom de Gracilaria picipennella, 

 Stainton I'a ensuite decrit dans les 

 "Transactions de la Societe Ento- 

 mologique de Londres,' vol. 1, nou- 

 velle serie, sous le nom de Gracilaria 

 Semifascia, et aussi dans son volume de 

 1'" Insecta Britannica" sous ce meme 

 nom, que Frey a adopte egalement 

 dans ses " Tineen und Pterophoren 

 der Schweiz," ou il donne une de- 

 I scription detaillee de plusieurs va- 

 t rietes. Herrich-Schaffer, dans ses 

 "Schmetterlinge von Europa," a decrit 

 I'espece sous le nom de Gracilaria 

 picipennella, raais sa figure 824 ne 

 s'applique guere a cet insecte ; sa 

 figure 822 {Licunsians) parait repre- 

 senter un individu pale de la Gra- 

 cilaria Semifascia. 



