TEKIAS. 165 



as T. chilensis of Blanchard), also belongs to it. Under these circumstances we prefer 

 to use Felder's title, concerning which we have no doubt, the type being before us. We 

 have several specimens of this species from Panama, taken at one of the stations on the 

 railway line, but only a single male from the interior of Guatemala, captured by our- 

 selves in 1862, and a single female from Honduras. 



From this it would appear that the species is anything but common in Central 

 America generally. 



Our figures are taken from specimens captured on the Isthmus of Panama. 



14. Terias tenella. 



Terias tenella, Boisd. Sp. Gen. i. p. 657 \ 



Terias circumcincta, Bates, Journ. Ent. p. 241 2 . 



Terias nisella, Feld. Verh. zool.-bot. Ges. Wien, xii. p. 474 3 ; Reise d. Nov., Lep. p. 207 4 . 



Terias nelphe, R. Feld. Verh. zool.-bot. Ges. Wien, 1869, p. 466 5 . 



Terias stygmula, Boisd. Sp. Gen. i. p. 661 6 ; Butl. & Druce, P. Z. S. 1874, p. 359 \ 



Eurema (Terias) venustula, Staud. Verh. zool.-bot. Ges. Wien, 1875, p. 93 8 . 



<S alis lsete sulpbureis, anticis apice et margine externo fuscis, introrsum angulum analem versus sinuatis ; posticis 

 quoque fusco irregulariter marginatis, ciliis flavis : subtus sulphureis unicoloribus, anticis ad costam 

 squamis fuscis sparsim notatis, puncto nigro ad cellulae finem ; posticis ad basin fusco atomatis, punctis 

 duobus ad cellulse finem maculis irregularibus discalibus fuscescentibus. 



$ mari similis, sed alis pallidioribus anticarura apicibus tantum fuscescentibus : subtus maculis apicalibus 

 rufis notatis. 



Hal. Mexico, Mazatlan, Presidio (Forrer), Rio Papagaio, Rincon, Tierra Colorada, La 

 Venta, Acapulco, Tepetlapa, Venta de Zopilote, Hacienda de la Imagen, Acaguizotla, 

 Dos Arroyos, all in the State of Guerrero (//. H. Smith), Cordova (Bilmeli), Potrero 

 (Hedemann 5 ), Orizaba (F. B. G.), Atoyac (H. H. Smith), Vera Cruz (Salle), Teapa 

 (H. H. Smith), Ruatan I. (G. F. Gaumer) ; Guatemala, Choctum, Yzabal, Polochic 

 valley, Pacific coast (F. D. G. & 0. S.), San Geronimo, Duehas (F. B. G. & 0. S., 

 Champion), Cahabon, Chacoj, Zapote, San Isidro (Champion); Honduras, San Pedro 

 (G. M. Whitely); Nicaeagua, Chontales (Belt); Costa Rica (Van Patten 1 ), San 

 Francisco (Rogers); Panama, Chiriqui (ArcS), Volcan de Chiriqui, Bugaba, Tole 

 (Champion), Calobre (Arce), Lion Hill (M'Leannan). — South Ameeica generally, 

 Amazons valley 2 , Guiana, South Brazil, Sec. 



We have taken our description from a male and female from Cordova in Mexico, 

 which correspond with specimens compared with the types of T. nelphe of Felder. Our 

 selection of about 200 specimens from the wide area mentioned above exhibits great 

 variation both as to size, width of the outer margin, especially of the secondaries, and 

 the extent of the markings on the underside of those wings. On comparing specimens 

 selected from most distant parts we find them to agree so closely that we see no chance 

 of being able to divide this variable form into either species or geographical races. On 

 the whole, male specimens from Western Mexico have a wider margin than those from 



