432 WR- A. G. I$UTLEU ON THE 



sidered the type. Tiie other species associated with it by Walker, 

 are clearly not congeneric. I have hitherto seen none of them. 



Grenus Pitane, Walker. 



Pitanefervens, Walker ; no locality given. This genus is closely 

 allied to the preceding, although placed by Walker in the Litho- 

 siidsD, and said to be allied to the Noctuidse. 



Genus Ammalo, Walker (remodelled). 



Ammalo fervidus^W sXkev {Halesidota megapyrrJia, part, Walker); 

 Plialoena helops, Cramer, confounded by Walker with A.fervidus 

 and H. onegapyrrha ; and II. cJirysogaster, Walker, from Bogota. 



Walker originally described his A.fervidus from a large 5 ex- 

 ample purchased at the sale of Mr. Milne's collection ; he, how- 

 ever, took the measurements from two poor specimens of the 

 Phalcena helops of Cramer without any locality -tickets ; but as he 

 neglected to label his type, it got mixed up with the other Arctiidse 

 in the collection ; and the label appeared in the cabinet Avith no 

 specimens to represent Walker's species. In his Supplement, 

 Walker referred the three examples to Salesidota, and described 

 them again as Halesidota megapyrrlia, with the addition of a fourti, 

 example from St. Domingo, which seems to have suggested to him 

 the locality " N , America"! In this instance the description is 

 taken from one of the representatives of P. helops. 



But the confusion does not end here. In the interim between 

 the appearance of the Catalogue and its Supplement, a fine new 

 species of Apantesis, Walker *, was added to the collection, and 

 by chance was placed above the label ''Ammalo helops •,^^ there- 

 fore, in the Supplement, Mr. Walker described, as a new spe- 

 cies of Ammalo, an insect somewhat resembling the supposed 

 A. helops in appearance (although referable to a distinct genus), 

 but which, of course, has nothing whatever in common with 

 the Phalaena helops of Cramer or the Ammalo fervidus of Walker. 

 This supposed new Ammalo is labelled as coming from " Nauta," 

 on the Amazons, wrongly read by Walker as Nanta ; he therefore 

 names it Ammalo nantana. But, unfortunately, it is now known 

 that the insects said to have come from Nauta were all col- 

 lected in E. Peru ; so that Walker's designation ought to drop, 

 unless it be accepted as a nonsense name. 



* I maj here remark that Aha color afa of Walker is identical with Apantesis 

 radians, the type ofWalker's genus. 



