Grote.l ^^^ [Oct. 18, 



Gen.: APATELA Hiibn., 1806 (1811). 



Type : A. aceris. 



(a) European Species. 



Subgenera : 



1. yW^rert Hiibn., 1818, type: psi ; tridens, cuspis. 



2. Byboma Htibn., 1818, type : strigosa. 



3. Joeheara Hiibn., 1818, type : alni. 



4. Acronicta Ochs., 1816, type : leporina. 



5. Apatela Hiibn., 1811, type : aceris. 



6. Cuspidia Chapman, 1893, type : megacephala. 



7. Pharetra Hiibn., 1818, type : auHcoma ; rumicis. 



8. Arctomyscis Hiibn., 1818, type : euphorbice (euphrasice) . 



9. Viminia Chapman, 1893, type : menyanthidis. 

 10. Bisulcia Chapman, 1893, type : ligustri. 



Of Triasna, Guenee's generic term Semaphora is a synonym, having 

 the same type. Dr. Chapman's objection, that Guen^e did not include 

 the wliole group, is not valid, since the rules under which the nomen- 

 clator works deal with names applied to any member of a group. It 

 were too much to demand of genera and species makers, those avant 

 couriers of biological research, that they announce at once the dis- 

 coveries of Miiller, Dyar or Chapman. The distinction oflFered by 

 Arctomyscis as restricted by me is of doubtful value ; it appears to be 

 nearly limited to the white secondaries of the male. The term Poly- 

 mixis Hiibn., 1818, is restricted to poli/mita L., under Chapman's action 

 in taking out ligustri in 1893. Upon becoming autoptically acquainted 

 with euphorbice, I tind that this species passes under the name euphrasice 

 in North Germany. It is so named in the museum here ; it is this 

 species I intended to designate as type of the term Arctomyscis. There 

 appears to be another euphrasicB in South Germany, which may or may 

 not be different. I have not seen it. These types for the most part are 

 fixed by me in 1874-1876 ; the action should be respected, unless it can 

 be properly overturned. 



(b) American Species. 



There are first to be separated, as distinct genera probably, Mero- 

 lonche Grt., which contains two Californian species with the type : 

 spitied Grt., and Eulonche Grt., from the Atlantic district, with three 

 species : oblinita Abb. and Sm. {= salicis Harris), which is the type, 

 lanceolaria Grt., and insolita Grt. This latter genus is characterized by 

 its pointed wings and sunken head and has no European representa- 

 tive. It shares with Mastiphanes a Lithophanoid ornamentation. I 

 have not been able to recognize any American representatives of the 

 8, g. 2. Hyboma ; my vinnula must be compared. Of 1. Triaina, we 



