MYLON. 385 



Bolivia. It occurs in the basin of the Upper Amazons, where Bates found it at San 

 Paulo ; but we have not met with specimens from the lower portions of that great 

 river-valley or from Guiana or Southern Brazil. 



The general resemblance of M. lassia to Eudamidas melander is very great ; but the 

 subapical spots in the primaries of the former readily distinguish it. There are also 

 large tufts to the hind tibiae of the male, of which there are no trace in E. melander. 



The male genitalia have a tegumen ending in four points arranged in two pairs (one 

 on either side) and divergent ; the scaphium is well developed and pointed, the terminal 

 portion with a granular surface ; the end of the harpes is very complex, and has serrate- 

 edged rounded lobes, some of which are recurved. (See Tab. LXXXV. fig. 10.) 



2. Mylon pulcherius. (Tab. LXXXV. figg. 11, 12, 13 s .) 



Leucochitonea pulcherius, R. Feld. Verh. z.-b. Ges. Wien, 1869, p. 477 \ 

 Antigonus pulcherius, Plotz, Jahrb. nass. Ver. xxxvii. p. 29 (1884) 2 . 



M. lassia aliquot similis, sed major; anticis obscurioribus fasciis fuscis bene definitis, area anticarum medians 

 fuscescentiore ; punctis subapicalibus in linea rectiore positis, secunda a costa maxima ; posticis fascia 

 discali haud interrupta : subtus triente basali multo obscuriore, anticis ad apicem et posticis ad marginem 

 externum quoque obscurioribus. 

 $ mari similis. 



Hab. Mexico 2 , Eincon in Guerrero (H. H. Smith), Orizaba, Atoyac (Hedemann *), 

 Vera Cruz (Salle 1 ) ; Guatemala, Polochic Valley (F. D. G. & 0. S.); Costa Eica, 

 Cache (Rogers); Panama, Chiriqui (Bibbe), Bugaba (Champion).— South America, from 

 Colombia 1 and Venezuela 1 2 to South Brazil. 



This species was described by E. Felder x from Mexican specimens obtained by Hede- 

 mann at Orizaba and Atoyac in the State of Vera Cruz ; he had also before him 

 examples from the same State collected by Salle, and others from Venezuela and 

 Colombia. 



We have only one Mexican specimen, which was taken by Mr. H. H. Smith at Eincon, 

 in the Western State of Guerrero. Our other examples are from various parts of 

 Central and South America, where, however, the species appears to be nowhere 

 common. 



Though similar in many respects to M. lassia, and, like that insect, with subapical 

 hyaline spots in the primaries and tufts to the hind tibia? in the male, M. pulcherius 

 differs in being considerably darker, with the darker marks more defined and less irre- 

 gular. The male genitalia at once show that the two species are quite distinct ; the 

 tegumen in M. pulcherius is four-pointed, but the points are not so divergent ; the 

 scaphium is more dense and smooth ; the harpes less complex, with a rounded serrate 

 end, this edge terminates inwardly with a strong tooth followed by a deep fissure and 

 then a serrate lobe. (See Tab. LXXXV. fig. 13.) 



biol. centk.-amer., Ehopal., Vol. II., March 1895. 3d 



