380 Mr. A. G. Butler's synonymic notes on the 



19. Agrotis diver gens. 



Agrotis divergens, Walker, Lep. Het., x., p. 327, n. 46 

 (1856). 



Agrotis versipellis of Grote is indistinguishable from 

 this species. 



20. Agrotis spina. 



Agrotis spina, Guenee, Noct., i., p. 269, n. 433 (1856). 

 A. capularis, Guenee, I.e., p. 271, n. 437. 

 Mamestra tenebrosa, Walker, Lep. Het., Suppl., 2, 

 p. 669 (1865). 



A common Australian species. 



The genus Pachnobia appears to me to be a mere 

 group of Agrotis ; I restrict it to P. carnea, rubricosa, 

 imperita, geniculata, and salicarum. 



PEEIDROMA, Hiibn. 



Differs from Agrotis in the finely ciliated (neither 

 pectinated nor serrated) antennae of the males. Type, 

 P. saucia (ypsilon, Eott.). 



Peridroma ypsilon, Bott. 



Noctua saucia, Hiibner, Samml. Europ. Schmett., 



fig. 378. 

 Agrotis differens, Walker, Lep. Het., x., p. 336, n. 67 



(1856). 

 A. ambrosioides (Morrison), Walker, Lep. Het., xi., 



p. 738 (1857). 

 Var. Spcelotis stictica, Blanchard, in Gay's * Fauna 



Chilena,' vii., p. 73, n. 1 ; pi. 6, fig. 8 (1854). 

 Var. Agrotis impacta, Walker, Lep. Het., x., p. 337, 



n. 71 (1856). 

 A. intecta, Walker, I. c., p. 338, n. 72. 



An example in the Grote collection corresponding with 

 the variety A. impacta is labelled " Agrotis turris " ; the 

 variety A. stictica is the most extreme variegated form of 

 the species. 



TIRACOLA, Moore. 



A strong-bodied Sphingiform genus, the males of 

 which have simple antennae. 



