ENTHEUS. 355 



proper female. So far as regards specimens from Panama, where alone in our country 

 E. peleus occurs, we are on more certain ground, and there can be no doubt that the 

 specimens described above as sexes really bear that relationship to one another. 



Though widely distributed over the southern continent, E. peleus just enters our fauna, 

 where the only specimens we have seen of it were all taken on the line of the Panama 

 Railway. In Costa Rica and thence northward to Guatemala E. matho entirely takes 

 its place. 



As a rule, male specimens are very uniform as regards the markings of the apical 

 portion of the primaries ; we notice, however, that in nearly all our southern examples 

 the spot between the two orange bands is confluent with the inner band, whereas in 

 Panama and Colombian examples it occupies an independent position between the two 

 bands ; this is brought about by the shortening of this spot from the proximal end. 

 The shortening carried further gives us E. matho, so far as this character alone is 

 concerned. 



The male genitalia have a very peculiar tegumen, which is cleft at the end, the arms 

 diverging and each expanding into a vertical triangular plate, the lower end of which 

 is acute, the outer edge having two teeth ; from near the middle proceed two rods — 

 one on either side of the middle line — as long as the tegumen itself. The scaphium is 

 highly developed ; the harpes are rounded at the end, and have a serrate lobe turned 

 downwards at the end. 



2. Entheus matho. (Tab. LXXXI. figg. 28, 29 s , 30 $ .) 



Entheus matho, Godm. & Salv. P. Z. S. 1879, p. 154 \ 



3 . E. talao similis, sed alis rufescentioribus ; anticis cellula ad basin rufa, linea transversa flavicantiore, 



macula inter fascias exteriore approximante ; posticis area interna flavido-albicante. 

 2 feminse E. talai similis, sed macula inter fascias angusta et prope fasciam externam sita. 



Hab. Guatemala, Senahu (Champion), Choctum (F. D. G. & 0. S. 1 ); Nicaragua, 

 Chontales (Belt 2 ) ; Costa Rica, Cache (Sogers). 



This is a northern form of E. peleus, but may be readily recognized by the characters 

 pointed out above. We have only seen two male specimens from Guatemala ; but in 

 Nicaragua it appears to be more common, as Belt's collection contains several examples. 



The male genitalia resemble those of E. peleus. (See Tab. LXXXI. fig. 29.) 



Section b. 



Club of the antennae usually sickle-shaped, but sometimes hooked, the apex acute 

 (except in the second subdivision containing Hesperia and its allies). The third 

 joint of the palpi varies greatly, being short in many instances, as in Anastrus 

 and its allies, moderately long, as in Camptopleura, very long and drooping, or 

 long and porrect, as in Anisochoria. This joint is never curved backwards as in 



2z2 



