22 MODERN ARRANGEMENT OF 



are terminated by a club or button, hooked at 

 the end ; in others they are filiform, with the ex-| 

 tremity slender, bent, and pointed. 



The genera are HESPERIA and URANIA. 

 The Hesperides differ in their metamorphosis from that of the 

 Papilionides. The caterpillars resemhle those of many noctur- 

 nal Lepidoptera. They are almost naked, tapering at the two 

 extremities, or fusiform, with a globular head. They arc found 

 between leaves, which they fix together with their silky fila- 

 ments. The pupae also resemble those of the nocturnal Lepi- 

 doptera. They have no eminences or angular projections, and 

 are inclosed in a slight web, and frequently on leaves. 



Genus HESPERIA, Latreille. 



Antennae terminated in a club ; inferior palpi short, 

 consisting of three joints, broad, and provided 

 with scales anteriorly \ body short and thick ; 

 wings triangular, thick, generally horizontal in 

 repose ; abdomen short, nearly conical j feet 

 strong, and the posterior legs with two spines 

 more than the others ; tarsi terminated by two 

 small, simple, and arched hooks. 

 This genus is subdivided as follows : 

 * Inferior wings prolonged into a tail. 

 ** Inferior wings not prolonged. 



TRIBE II. CREPUSCULARIA. 



The exterior border of the lower wings generally 

 provided with a strong, pointed, stiff, horny bristle 

 near its origin, which enters into a groove below 



