38 LÉPIDOPTÉROLOGIE COMPARÉE 



of Lepidoptera, I am studying the genus Thanaos, our American 

 species, and hâve not been able to décide just what the insect is 

 that was described by Dr. Boisduval under the name tristis in 

 the Annals Ent. Soc. France (2) vol. X, page 311, 1852. 



I beheve you hâve the type of the species and you can do me 

 a very great favor by having a picture made for me in color, 

 showing the upper and undersides and sending it to me along 

 with the bill for the artistic work. We greatly appreciate the 

 work you are doing in giving such beautiful iîgures to the 

 scientific world and are particularly grateful for the figures of 

 some of our more obscure American species treated in your 

 Etudes de Lép. comparée. 



Thanaos funeralis which is figured in the Biologia CentraH- 

 Americana Rhop. vol. III, plate 91, figs. 10, 11, 13, is very 

 common in California and Boisduvals description hts it very 

 well. I hâve often wondered whether or not it is a synonym of 

 tristis Boisd. 



Any information or help you can give me will be greatly 

 appreciated and will also advance our knowledge of some of 

 our American species, the types of which are m Europe. 



With regards and best wishes I am 



Very snicerely 



Henry Skinner, 



Secretary and Curator. 



M. Henry Skinner est embarrassé pour savoir, d'après la 

 description de Boisduval, ce qu'est exactement l'Hesperide : 

 Thanaos tristis et il déclare qu'en Amérique, on a grandement 

 apprécié mon œuvre lorsque j'ai donné au monde scientifique 

 de SI belles figures de papillons et qu'on est particulièrement 



