Vol. Xxix] ENTOMOLOGICAL XEWS. 379 



Plate 80 contains a figure of Satynis balder which is re- 

 ferred to by Boisduval himself in the Icones, p. 189 under the 

 new genus Chionobas; it has been shown by Scudder (Hist. 

 Sketch, pp. 98 and 140) that this portion of the Icones was 

 published probably late in 1832 ; the same plate contains a 

 figure of a species called Eumoiia toxca Godt. which Gucrin 

 in the text (page 489) notes is a misidentification, referring 

 the species to atala Poey, a name published in April, 1832, 

 presumably after Plate 80 had been issued. 



Plate 81 contains Polyommatus thoe which is referred to 

 in the text of Boisduval's Lep. Am. Sept., p. 125, this portion 

 of the work having been issued in all probability late in 1833 

 (vide Scudder, Hist. Sketch). 



In view of the above facts I believe therefore that these 

 plates must be considered as having been published between 

 1829 and 183 1 ; the new N. American species contained on 

 them have been variously credited to Boisduval, Gray or Guer- 

 iii, but, since it is the figure on Guerin's plate that holds the 

 name, both Mr. Banks and myself are of the opinion that 

 Guerin must be considered to be the author in all instances 

 but one. This single exception is found on Plate 87. fig. 8, 

 where the figure of a Limacodid larva is listed in Guerin's 

 text as "Chen, de Lim. indeterminee" w^hich is certainly no 

 specific name ; Grififith in his copy of Guerin's plate first latin- 

 izes this to Limacodcs indeterminus, which name we presume 

 will hold and should be credited to Grififith ; that Gray had 

 nothing to do with the name is shown by the fact that there 

 is no text description of the insect. 



I would further note that the description of Liinacodes 

 strigata imago in the text (p. 512) seems to refer to Sisyrosea 

 tcxtula H. S.. but the larva on which the name is based is cor- 

 rectly referred by Dyar to delphinii. Scricaria ranocceps (PI. 

 ^y, fig. i) with habitat as N. America, according to the. text, 

 appears to have been omitted from all our catalogues : it is a 

 Dafana species, possibly floridana Graef, but an exact deter- 

 mination from the figure seems impossible. Platyptcryx glo- 



