252 THE ENTOMOLOGIST. 



two wing-determinants of an adaptively seasonally dimorphic 

 species shall become active, is, at the earliest, given at the begin- 

 ning of the pupal period. 



NOTES ON THE SYNONYMY OF NOCTUID MOTHS. 

 By Arthur G. Butler, Ph.D., F.L.S., &c. 



(Continued from vol. xxviii. p. 276.) 



Trigonia, Giien. = Claterna, Walk. 



Claterna, Walk., Cat. xv. p. 1543, is synonymous with this 

 genus, the type being very closely allied to T. cydonia, Cram. ; 

 it is significant of the value of the family characters recognized 

 by Messrs. Guenee and Walker, that Trigonia is placed in the 

 Platydidae, and Claterna in the Focillidse. Trigonia being pre- 

 occupied in MoUusca (1791), Claterna will stand. 



The following genus probably belongs to the Thermesiidse ; 

 if, as I believe, I have rightly made out the affinities of the 

 typical species, R. curvicosta. 



Kenodes, Guen. 

 llenodes sigillata. 

 Thermesia siqillata, Walker, Lep. Het. xv. p. 1562, n. 4 (1858). 

 T, credihilisiWolkeY, I.e., p. 1565, n. 8 (1858). 

 Poaphila profecta, Walker, I.e., p. 1836 (1858). 

 St. Domingo. Types in Coll. B. M. 



Episparis, Walk, 

 Neviasca and Pradiota, Walk. 

 Walker described Episparis as a Trifid Noctuid of the family 

 Orthosiidse, Neviasca as a Deltoid of the family Platydiidse, and 

 Pradiota as a Geometrid of the family Macariidie ; and he 

 described the same species in each of these widely separated 

 families. 



Episparis varialis. 



Neviasca varialis, Walker, Lep. Het. xvi. p. 7, n. 1 (1858). 



Episparis signata. Walker, I.e., Suppl. 3, p. 1032 (1865). 



Pradiota sejunctata, Walker, I.e., 5, p. 1572 (1866). 



Episparis exprimens. Walker, Trans. Ent. Soc, 3rd ser., vol. i. 

 p. 106 (1862-3). 



India, Ceylon, Java, Borneo. Types in Coll. B. M. 



This is merely an oriental form of the African E. penetrata; 

 the latter varies more, but probably is rather dimorphic than 

 variable ; the eastern type has the dark marginal crescent edged 

 internally with white. 



