 



146 THE CANADIAN ENTOMOLOGIST. 



will not, — there appears to me to be no ground" for refusing to those two 

 great groups a certain natural right, at least so far as concerns the Europeo- 

 North American Fauna. A costal-fold occurs only in the males of the 

 one group (although not invariably), and a stigma only in those of the 

 other (but still less constantly). The spines of the tibiae while here a 

 rule, are there a rare exception. There appears, moreover, a difference in 

 the color, in so far that the usual black or dark brown ground-color in the 

 Scudderian Astyci is very often reduced or quite supplanted by reddish 

 yellow in the HESPERrDES. The remarks of Mr. Scudder relative to the 

 early stages of these insects will scarcely be supported by extended 

 observations so as to be fully conclusive. 



Of the eggs he states that those of the Hesperides are always dis- 

 tinctly ribbed in the vertical direction, and almost invariably higher than 

 broad, whilst on the other hand, those of the Astyci are broader than 

 high, smooth and pretty regularly hemispherical. "The caterpillars of 

 the Hesperides feed usually on leguminous plants [but this is not true 

 of the European ones] and dwell in horizontal leaf-cases ; while the 

 Astyci feed on grasses [but not allj and build vertical cases between the 

 blades." 



In the nomenclature of the genera I have followed Herrich-Schaeffer's 

 Prodromus, without being able (because of the insufficiency of my literary 

 material) to guarantee their unexceptional authority. 



I now present, first, a Systematic Synopsis of the species of the Euro- 

 pean-region which I have investigated ; then an Analytical Table of the 

 genera, and lastly will follow the more precise description of their generic 

 characteristics. 



HESPERIDES Latr. 

 i. Cyclopides H. (p.) 



i. Morpheus (Pap. m.) Pall. Steropes WV.* 

 *2. Ornatus Brem. 



2. Carterocephalus Eed. ' . 



i. Palaemon (Pap. p.) Pall. — Paniscus F. 

 2. Silvius (Pap. s.) Knoch. 



[ "" This Synopsis is copied literatim, except that the original is without the digram 

 «.— L.] 



