596 EHOPALOCEEA. 



Eab. Mexico, Ciudad, Milpas, and Ventanas, all in Durango (Forrer), Rio Papagaio, 

 Dos Arroyos, and Venta de Zopilote in Guerrero (H. H. Smith), Lake Chapala 

 (Richardson), Jalapa (coll. Schaus) ; Guatemala, Santa Maria, Pacific slope 

 (Richardson), San Geronimo (Champion). 



The above description is taken from five brightly-coloured specimens from North- 

 western Mexico ; we have others from the same region which are much darker, with 

 the underside of the secondaries ochraceous (instead of greyish), and the spots, confluent, 

 forming an irregular band, and between these we have many intermediate examples. 

 Our series contains fourteen specimens, including both sexes. The genitalia of the 

 male scarcely differ from those of C. malitiosa and C. lutulenta, see Tab. CIII. fig. 3. 

 A male insect from Dos Arroyos is also shown on our Plate. 



4. Cymsenes silius. (Tab. cm. figg. 4, 5, 6, e .) 



Hesperia silius, Latr. Enc. Meth. ix. p. 764 \ 



? Pamphila silius, Dewitz, Stett. ent. Zeit. 1877, p. 243, t. 1. f. 5 2 . 



Alis fuscis, anticis fascia obliqua venis divisa a margine interno apicem versus extendente, illic angustiore, 

 fulva, in costa squamis coloris ejusdem tectis : subtus anticis fuscis, fascia obliqua ut supra et costa 

 latiore, fulvis ; posticis obscure ochraceis, fusco irroratis. 



2 mari similis. 



Bab. Mexico, Dos Arroyos in Guerrero (H. H. Smith), Paso de San Juan (coll. 

 Schaus), Valladolid and Temax in Yucatan (Gaumer) ; Costa Rica (mus. nostr.) ; 

 Panama (Ribbe, in mus. Staudinger). — Colombia ; Guiana ; Bkazil l . 



We have applied the name of C. silius to this insect with some hesitation, though 

 we possess specimens from Brazil, whence the type came, which agree with Latreille's 

 brief description, and with these we associate others from Central America. Herr 

 Dewitz has described and figured 2 a female insect under this name from Puerto Rico, 

 but we doubt if it really belongs to our species. C. silius closely resembles C. berus, 

 but differs from it in having a rather narrower oblique fulvous band on the primaries 

 above, and the secondaries are paler beneath ; the male genitalia, too, are slightly 

 dissimilar in form, see Tab. CIII. fig. 6. It is also very nearly allied to C. malitiosa, 

 but the primaries always have a distinct oblique fulvous band in both sexes, and the 

 secondaries are paler beneath and want the dark markings. 



5. CymaBnes berus. (Tab. CIII. figg. 7, 8, 9, d ; 10, var., 6 .) 



Pamphila berus, Mab. Le Nat. 1889, p. 145, f . 2 (<?) l . 



Pamphila insidiosa, Mab. Compt. rend. Soc. Ent. Belg. xxxv. p. clxxxv ( ? ) 2 . 



C. silio similis, sed anticis colore fulvo latiore et posticis (nisi in costa) squamis coloris ejusdem tectis : subtus 

 rufo-fuscis, anticis fascia obliqua ut supra, marginem internum versus pallide ocbraceis aut griseis • 

 posticis brunneo-ferrugineis, in area discali et margine externo interdum squamis schistaceo-°riseis 

 vestitis. 



$ supra mari similis, sed colore fulvo fere obsoleto. 



