THANAOS. — THEAGENES. 459 



A lis posticis ciliis griseis. 



6. Thanaos afranius. (Tab. XCI. figg. 24, 25, 26 s .) 



Nisoniades afranius, Lintner, Thirtieth Rep. State Mus. N. Y. p. 175 \ 



Alis nigro-fuseis, anticis griseo marmoratis, punctis minutis quatuor obliquis prope apicem a costa 

 extendentibus, et una ultra cellulam, hyalinis ; posticis ciliis griseis : subtus alis pallidioribus. 



Hah. North America, Colorado \ Arizona. — Mexico, Northern Sonora (Morrison). 



We have received two specimens of a Thanaos from Morrison from Northern Sonora 

 under this name, agreeing with others in our collection from Colorado and Fort Grant, 

 Arizona, which we refer with some doubt to T. afranius. This is the only species 

 known to us from within our limits that has not a pure white fringe to the secondaries, 

 and it appears to only just enter Mexico on its northern boundaries. We have 

 dissected two males, one from Colorado and one from Sonora. 



The genitalia are extremely like those of T. persius, described originally from 

 New England. Possibly T. persius and T. afranius belong to the same species. 

 Mr. Scudder has kindly sent us a specimen of the former for examination. 



The tegumen has at its extremity a pair of long curved hooks : the right harpe 

 terminates in a long and slender piece ; the left ends similarly, but bears a curved 

 projection on the upper edge some distance from the apex. (See Tab. XCI. fig. 26.) 



THEAGENES (p. 428). 



The following species were accidentally omitted when dealing with this genus. 

 They agree with T. cegiades and T. albiplaga in having a costal fold and porrect palpi, 

 and in the general form of the wings, except that the secondaries have a dentate 

 margin. The harpes, however, are almost symmetrical. 



Helias noctua and H. hcematospila, Felder, of Tropical South America are allied 

 forms. 



2. Theagenes lactifera. (Tab. XCI. figg. 30, 31, 32 s .) 



Helias lactifera, Butl. & Druce, Cist. Ent. i. p. 115 \ 



Alis saturate brunneo-fuscis, anticis maculis irregulariter nigricantibus, punctis elongatis duobus aut tribus in 

 linea obliqua subapicalibus, hyalinis ; posticis fascia transversa pilis griseis tecta, marginem internum versus 

 latiore, albida : subtus brunneis; anticis fascia valde irregulari ultra cellulam fulvescente, maculis ferrugineis 

 frequenter irroratis. 



2 mari similis, sed supra posticis fascia albida latiore : subtus alis obscurioribus. 



Hab. Mexico, Soledad (H. H. Smith), Atoyac (Schumann), Misantla (F. D. (?.), 

 Orizaba (H. J. Elwes), Cordova (Eumeli) ; Guatemala, Choctum, Polochic Valley, San 

 Geronimo (F. D. G. & 0. S.), Chilasco, Panima (Champion) ; Nicaragua, Chon tales 

 (Belt); Costa Eica (Van Patten 1 ), Cache, R. Sucio, San Francisco (Sogers); Panama, 

 Chiriqui, Veraguas (Arce). 



