172 EHOPALOCEEA. 



typical specimens from Colombia; and with this an example from Colon also corresponds, 

 except that the secondaries beneath are rather more spotted. Other specimens from 

 Central America differ as to the submarginal black band of the males, which in some is 

 but faintly shown and in others is almost obsolete, but in all cases this band is clearly 

 black and not fuscous. There is also great variation in the width of the marginal band 

 of the secondaries. 



The female we have figured is from Veraguas, the male from the Volcan de Chiriqui. 



NATHALIS. 



Nathalis, Boisduval, Sp. Gen. i. p. 589 ; Doubleday, Gen. Diurn. Lep. p. 54. 



This genus is closely allied to Terias in several essential points of structure. The 

 harpagones of the male bear towards the extremity a series of points very similar to 

 those of Terias. There is, however, a difference in the form of the wings, which are 

 more elongated than in Terias, and the primaries have only two subcostal branches *. 

 In Terias three subcostal branches are always present. 



Nathalis, as represented by N. iole, has a wide range in all open places throughout 

 our region from Honduras, Guatemala and thence northward into the frontier States 

 of North America, and also occurs in the Greater Antilles. In the Andes of North- 

 western South America an allied species occurs. 



l. Nathalis iole. (Tab. LXIV. figg. 15, 16 6 , 17, 18 2 .) 



Nathalis iole, Boisd. Sp. Gen. i. p. 589 \ 



Nathalis luteolus, Reak. Proc. Ent. Soc. Phil. ii. p. 350 2 . 



S alis sulphureis, anticis apice late nigro, fascia subcellular! a basi prope angulum analem extendente basin 

 squamis flavis intermixtis ; posticis margine externo et venarum finibus nigris, ciliis flavis : subtus sulphureis, 

 anticis fascia costali aurantia, altera margini interno paralleli et punctis duobus ad finem ejus nigris ; posticis 

 fascia obsoleta fusca margini externo subparalleli. 



$ mari similis, anticis fusco nee nigro notatis ; posticis aurantiis ad basin, et fascia submarginali, fuscis, squamis 

 flavis notatis : subtus anticis apice et posticis omnino squamis olivaceis irroratis. 



Bab. Nokth America, South-western States, Arizona, Texas. — Mexico, Northern 

 Sonora (Morrison), Pinos Altos in Chihuahua (Buchan-Hepburnjy Ventanas (Forrer), 

 Venta de Zopilote, Dos Arroyos, LaVenta(#. H. Smith), Cuernavaca, Aguas Calientes, 

 Mexico city, Jalapa, Puebla (F. D. G.), Cordova (Rumeli), Orizaba (H. J. Elwes, 

 F. D. G.), Atoyac (H. II. Smith) ; Guatemala, Polochic valley, Central valleys, Dueiias 

 (F. D. G. & 0. S.), San Geronimo, Dueiias (Champion) ; Honduras 2 . — Cuba; Jamaica. 



Our figures are taken from specimens captured by Mr. H. H. Smith at Atoyac in 

 May 1888. 



* Mr. Butler (Cist. Ent. i. p. 41) describes tbe neuration of tbe wings very differently ; what we consider 

 the upper radial he calls the fourth subcostal branch, and he treats the upper radial as absent. 



