70 ME. E. T. WATSON ON THE HESPERIIDiE. [Jan. 17, 



Section B. 



Antennse very varied, but never hooked ; the ckib either entirely 

 without, or with a crook of varying length. Palpi : third joint in 

 several genera long, slender, and curving over the vertex, a character 

 never found in the Hesperiince ; in most of the other genera the third 

 joint is minute, only very rarely being horizontally porrected, and 

 when this is the case it is always stout. 



Fore wing : cell invariably less than two-thirds the length of costa ; 

 vein 5 curves downwards at its base and consequently arises con- 

 siderably nearer to 4 than to 6 ; the middle discoceliular being con- 

 siderably longer than the lower one, frequently more than twice as 

 long as it. Hind wing usually rather elongate, but never with a 

 conspicuous tail or tooth ; vein 5 very rarely developed. 



The male is frequently furnished with a discal stigma on the fore 

 wing and never with a costal fold. Both pairs of spurs are invariably 

 present ou the hind tibige, and there is never a tuft of hair on the 

 tibiae in the male. The epiphysis on the fore tibige is invariably 

 present. 



This group is of world-wide distribution ; the South-American 

 forms, however, are comparatively hw. 



The majority of the species when sunning ou a leaf depress their 

 hind wings and elevate their fore wings, au attitude peculiar to this 

 section. When in a complete state of repose both the wings are 

 raised till they meet over their backs. 



Section C. 



Antennfe: club of varying robustness, always tapering to a fine 

 point ; occasionally hooked, in which case the terminal portion is 

 always more than half the length of remainder of club. Palpi : 

 second joint upturned, pressed closely against the face ; third joint 

 long, slender, naked, porrect, projecting horizontally in front of the 

 face. Cell of fore wing ranging from just over one-half to just over 

 two-thirds the length of costa. Hind wing more or less lobate ; 

 vein .5 of hind wing usually well developed ; vein 5 of fore wing 

 equidistant from 4 and G or slightly nearer to 6. 



Male never with a costal fold on fore wing, but with variouo o ther 

 secondary sexual characters, both on wings and legs. 



As far as is known, all the species rest with their wings raised 

 above their backs, frequently settling on the underside of leaves. 

 They are remarkably crepuscular in their habits, being specii\!ly 

 active only in the very early morning and at dusk. The section is 

 confined entirely to the Old World. 



The palpi of this section are very distinct, and readily separate 

 them from nearly all other genera. The few genera of Ilesperiince 

 (Phatws, Entheus, and allies) which have somewhat similar palpi 

 dilTer in the entirely different form of antennfe, in the constant 

 absence of vein 5 of the hind wing, and in some cases hy the presence 

 of the costal fold of the fore wing*. 



