185 



XVi. On the Butterflies of AnticostI 



IJY Ar(i. II. GROTE. 



[Bead before this Society, October 31, 1873.] 



Tins Society has received from Mr. William Conper a collection 

 of Lepidoptera made in the months of Jniie and July, on the 

 Island of Anticosti, which lies in the Gulf of St. Lawrence, be- 

 tween latitudes 49° and 50°. I am under obligations to Mr. Samuel 

 H. Scudder for his opinion on the eight species of Diurnal Lepi- 

 doptera collected by Mr. Couper. Two additional species of Grapta 

 have been reported, though not seen by me, making ten species of 

 butterflies in all known from the island. No species of Oeneis 

 Avere observed. Five of the species received pi'esent no features of 

 particular interest. These are : Vanessa Atalanta, Argynnis Atlan- 

 tis, Phyciodes Tharos, Cyaniris Lucia and Cyclopides Mandan. The 

 other three I notice more fully, as follows : 



Glancopsyclie Coiiperi, Orote. 



This species differs from Lygdamus and Pembina, in having a much broader 

 dariv margin to tlie wings. The male (25 m. m.) is more largely pale greenish 

 blue above, over the dark ground color, which, in the female (27 m. m.) obtains, 

 the blue color being confined to the basal and discal fields of the wings. 

 Beneath white shaded over dark, with a subterminal series of 7 black-pupiled 

 white ringed spots on the interspaces, and a discal ocellus on the i)rimaries. 

 Hind wings with a twice broken subterminal series of 9 ocelli with obsolete 

 l)upils, 2 more coalesced on the disc, 1 above on costal region. Fringes whitish. 



Gaiioris oleracea, Scudder, var borealis. 



The markings on the veins are much darker and broader than usual, espe- 

 cially beneath. The species thus resembles /?•^(7^(?f^ but the elongated form of 

 the hind wings peculiar to friyida is totally wanting. This is a renewed 

 example of the interesting fact that white butterflies assume darker colors 

 when inhabiting elevated localities or higher latitudes. 



Papilio brevicauda, Saunders. 



The specimens agree in the special ])osition of the markings with th(> New- 

 foundland form. There is a variation in the length of the tails, and the 

 coloration is more that of the continental P. Polysenes (Asterias). The form 

 is a segregated geographical one. While the female brevicauda approaches 

 in excess of yellow color the male, in the Southern States the male Polyxenes 

 seems to approach the ordinary female type. 



Ft"I.. ■RVF. POO. NAT. SCI. (24) NOVEMBER, 18T3. 



