352 MODERN CLASSIFICATION OF INSECTS. 

Petavia (fig. 101.3.), and some species of Morpho*, the antennz 
are filiform, and even slightly pectinated, without any knob; in others 
they are hooked at the tip, the ocelli are wanting, the spiral tongue 
(fig. 95. 3.) always elongated, the wings not confined together by 
means of a hook and bridle+, and carried erect when in repose 
(fig. 95. 1.). In some few, however (Hesperia), the fore wings alone 
are elevated when at rest. The hind tibiz are ordinarily furnished 
only with a pair of spurs at the apex, although in Hesperia there is an 
additional pair near the centre, as in the moths. The flight is con- 
stantly during the day. The larve (fig. 95. 9.) are of varied shape ; 
they have always six pectoral, eight abdominal, and two anal feet ; 
but the pupz (fig. 95. 10.) are generally angulated (fig. 98. 3.), and 
almost always naked; a very few species, however, roll up leaves, 
which they web together, and therein assume the pupa state, which is 
termed Chrysalis or Aurelia, from the golden colours exhibited by 
many species. This section comprises the well-known tribes of but- 
terflies, which, both from their elegant forms and beautiful colours 
(which are as varied and brilliant on the under as the upper side of 
the wings), may almost be mistaken, as Moore sings, for 
“‘ winged flowers or flying gems.” 
fo} oO 
Spenser well describes some of the chief characteristics of this 
favourite tribe of insects in the following lines :— 
* Latreille (Régne An. tom. v. p. 386.) describes a genus Zephyrius Dalm. as 
having the tips of the antennz moniliform; founding his observation upon Dal- 
man’s Anal. Ent. p. 102. The genus is, however, synonymous with Polyommatus. 
+ From the observations of Mr. Haworth (Lep. Brit. p. 19.) upon the strong 
flight of the males of the purple emperor (Apatura Iris), it would appear that the 
males of that species possess this socket and spring, as he terms this apparatus, and 
of which the females, which fly but little, are destitute. 
