108 On a New Species of Anarta, etc. 



the abdomen are as in Anarta. Its spinose legs are its only 

 analogy with Agrotis. But it must be remembered that the 

 spinose tibia? are a prevalent feature in the group of genera 

 allied to Heliothis, and to which Anarta belongs. The spe- 

 cies seems to have been recently described as a species of 

 Agrotis, b} r Mr. Morrison, who has regarded its characters 

 as mimetic with Anarta, and its true relationship to be de- 

 cided by the single character of its spinose tilme. The 

 majority of the characters, however, ally the moth to Anarta, 

 in my opinion, and we must also consider that genera with 

 spinose tibiae are scattered throughout the family, and that 

 hitherto no attempt has been made to associate them on this 

 single character. Mr. Morrison himself fails to remark any 

 resemblances to Anarta in other species of Agrotis inhabit- 

 in^ the same regions with Anarta.* Mr. Morrison com- 

 pares the cases of mimicry between the Ileliconidce and 

 Pieridoc discovered by Bates and Wallace, with the present 

 instance. I think there is no parallel to be sustained. The 

 cases of mimicry reported among the butterflies from South 

 America affected their coloration. In the present case there 

 are structural differences which make the parallel untenable. 

 I think that Mr. Morrison has merely mistaken the essential 

 characters of his Agrotis montana, and that in consequence 

 his remarks will not well bear criticism. 



Agrotiphila, n. g. 



All the tibiae are spinose. The shape of the abdomen and habitus is as 

 in Anarta. The eyes are naked, encroached upon by the caputal tegu- 

 ment, ovate, narrowed, fringed with lashes. The thorax is thickly and 

 coarsely haired, without tufts. The maxilla) are stout. The antennas are 

 simple, thickly ciliate beneath in the male. 



Agrotiphila montana. 



Agrotis montana Morr., Ann. Lye. N. H., Vol. XI, 94. 

 My specimen, numbered 28, agrees very well with Mr. 



*Mr. Morrison applies the term "northern" to the species of Agrotis hitherto only- 

 found in the White Mountains, such as scropulana, opipara, perhaps incorrectly. 



