EUDAMITS. 271 



Thymele simplicius, Scudder, Rep. Peab. Ac. Sc. iv. p. 68 2 . 

 Goniurus simplicius, Plotz, Bull. Soc. Imp. Mosc. Iv. No. S, p. 2 3 . 

 Goniurus gracilicauda, Plotz, loc. cit. 4 . 



Alis murinis fere unicoloribus ; anticis fascia transversa plus minusve obsoleta, nonnunquam absente, a costa 

 per cellulam transeunte semibyalina, maculis quoque subapicalibus (quatuor aut minus, interdum obso- 

 letis) costam approximantibus, in linea recta positis, ejusdem coloris : subtus ut supra squamis sparsis 

 ocbraceis notatis, posticis fasciis duabus transversis fuscescentibus — una per cellulam, ssepe interrupta, altera 

 discali integra, macula quoque basali ejusdem coloris ; capite et corpore supra alis concoloribus, palpis 

 albicantibus squamis fuscis intermixtis ; plica costali obvia. 



$ mari similis, anticis magis obtusis fascia et maculis semibyalinis magis distinctis, plica costali nulla. 



Hob. Noeth Ameeica, Texas and Arizona 2 . — Mexico, Sonora (W. H. Edwards 2 ), 

 Mazatlan (Forrer), Jalisco (Schumann), Sierra de Tepic in Jalisco ( W. B. Richardson), 

 Rincon, Tierra Colorada, Dos Arroyos, Rio Papagaio, Acaguizotla, and Acapulco in 

 Guerrero, Cuernavaca (H. H. Smith), Jalapa and Coatepec ( W. Schaus), Atoyac, Teapa 

 (H. H. S.), Valladolid in Yucatan (G. F. Gaumer), Tehuantepec (fide Scudder 2 ); 

 British Honduras, Belize (Blancaneaux) ; Guatemala (fide Scudder), Volcan de Santa 

 Maria (W. B. Richardson), Pacific coast (F. D. G. & 0. S.), Guatemala city, San 

 Geronimo, Panima (G. C. Champion) ; Honduras (Dyson) ; Nicaeagua, Chon tales 

 (Belt) ; Costa Rica, Irazu, Cache (Rogers) ; Panama, Volcan de Chiriqui (Champion), 

 Veraguas (Arce), Lion Hill (M'Leannan), Colon (A. H. Markham). — South Ameeica 

 generally, from Colombia to South Brazil and Paraguay. 



Stoll's description and figure of this species were based upon a specimen from 

 Surinam 1 . We have several examples from the adjoining country of British Guiana 

 agreeing with the figure, and have no hesitation in applying Stoll's name to them. A 

 large series from all parts of Tropical America in our possession proves that the species 

 has a very wide range, extending uninterruptedly from the borders of the United States 

 to South Brazil and Paraguay. On the whole there is little individual variation to be 

 traced, and this concerns chiefly the transverse hyaline band of the primaries and the 

 subapical spots. In some examples these are fairly well shown, but in others they are 

 obsolete, and can scarcely be seen. In the female this band seems to be always more 

 apparent. 



The male in E. simplicius has a costal fold to the primaries, and this is a character 

 separating it at once from that sex of E. eurycles whatever the definition of the trans- 

 verse band of the former may be. Females of the two species can usually be distin- 

 guished by the outer margin of the secondaries in E. simplicius being more rounded and 

 forming an angle rather than a curve where the tail commences. 



In their male genitalia these two species present no differences. The tegumen 

 bifurcates into two well-defined points ; the extremity of the harpagones is rounded, 

 and has a spine pointing backwards and overhanging the dorsal fissure ; the scaphium 

 is well developed. (See Tab. LXXV. fig. 1.) 



