On Lepidoptera jrom the Falkland Islands. 207 



XXXIV. — On a small Collection of Lepidoptera from Darwin 

 Harbour, Falkland Islands. Bj ARTHUR G. BUTLER, 

 Ph.D., F.L.S., F.Z.S., &c. 



The little series of Lepidoptera of which the following is an 

 account was obtained by Dr. W. F. Dale, and sent to Mr. J. 

 Hartley Durrant, who forwarded it to me with the request 

 that I would name it. 



The collection contains ten species represented by about 

 forty specimens, and is interesting as a contribution to a little- 

 known fauna. So far as I can judge, it seems to show 

 greater affinity to that of Chili than to any other. 



1 . Argynnis siga. 



Argifnnis siga, Hiibner, Samml. exot. Schmett. Zutr. figs. 677, 678 

 (1832). 



One example. 



This is the only butterfly in the collection. No Sphinges 

 or Bombyces were obtained ; indeed, the most largely repre- 

 sented tribe was the Noctuites. 



2. Agrotis hispidula. 



Agrotis hispidula, Guenee, Noct. i. p. 293. n. 476 (1852). 



Five examples of this somewhat variable species ; it was 

 originally described from Chili. 



3. Agrotis Dalei, sp. n. 



This insect has somewhat the aspect of a Nonagria ; it 

 has, however, very coarsely spined tibias and the antennae 

 are strongly pectinated, each pecten being finely ciliated on 

 each side. Primaries above pale sericeous buff (almost dead 

 gold in tint) ; costal half sparsely, irregularly, but distinctly 

 speckled with black ; a curved discal series of similar black 

 flecks from near costa almost to inner margin beyond the cell ; 

 a few fine scattered black dots near outer margin and a well- 

 defined marginal series ; fringe of inner and outer margins 

 pale cupreous or rufous-brown, traversed by two grey lines : 

 secondaries grey, slightly darker on external border ; fringe 

 buff, shading into reddish ochreous towards apex : head and 

 collar testaceous, the face slightly yellower ; antennae ferru- 

 ginous ; thorax sordid pale buff; abdomen grey, with pale 

 ferruginous lateral and anal tufts. Primaries below smoky 

 grey, slightly blackish at base of costa ; base of median and 



