334 EHOPALOOEEA. 



THORYBES. 



Thorybes, Scudder, Rep. Peab. Ac. Sc. iv. p. 71 (1872) ; Butt. E. U. S. ii. p. 1423 (partim) ; Wats. 

 P. Z. S. 1893, p. 33- 



Mr. Scudder first separated this genus from Eudamus in 1872, and designated 

 Papilio bathyllus of Smith and Abbot as the type. With it he placed two other 

 species, one of which (T. nevada) appears to be strictly congeneric, but the other, 

 T. jpylades, for reasons given below, we now place elsewhere. 



Typical Thorybes have no costal fold, and the genus is closely allied to Rhabdoides ; 

 the anal angle of the secondaries is not so much produced, the costa of the primaries 

 is more gradually and evenly rounded, and the bent portion of the antennae is shorter. 



T. bathyllus, a North-American species, does not, so far as we ourselves know, occur 

 within our limits, but Mr. Scudder states that he has seen specimens from Mazatlan 

 and Costa Rica. T. mexicanus has a wide range in Western North America, and 

 thence southwards over the greater part of Mexico. 



l. Thorybes mexicanus. (Tab. LXXX. figg. 15, 16, 17 s .) 



Eudamus mexicana, Herr.-Schaff. Prodr. iii. p. 68 (1868) \ 



Thorybes nevada, Scudd. Kep. Peab. Ac. Sc. iv. p. 71 (1872) 2 . 



Eudamus nevada, Lintn. Papilio, i. p. 74* ; W. H. Edw. Trans. Am. Ent. Soc. xi. p. 320 \ 



Eudamus ananius, Plotz, Stett. ent. Zeit. 1882, p. 99 5 . 



Alis saturate brunneis ; anticis maculis parvis sex (aut septem) semihyalinis, una cellulari, una rami mediani 

 secundi utrinque et tribus subapicalibus, notatis, ciliis omnibus fuscis ad fines ramorum obscurioribus : 

 subtus pallidioribus, area submarginali glaucescente et lineis nigricantibus vermiculata ; posticis fasciis 

 duabus indistinctis fuscis, una per cellulam, altera discali : palpis glauco-fuseis ; antennis supra fuscis, infra 

 pallidis ; pectore f usco, abdomine medio albicante ; plica costali nulla. 



5 mari similis, sed maculis anticarum omnibus majoribus. 



Hab. North America, Texas 4 , California 2 , Colorado 2 , Arizona 4 . — Mexico 3 , Northern 

 Sonora (Morrison), Aguas Calientes, Jalapa (W. Schaus), Misantla (F. D. 6\), Puebla 

 and Pinal near Puebla (//. J. Elwes), Xucumanatlan and Omilteme in Guerrero 

 (H. H. Smith). 



The loan of the type of Herrich-Schaffer's Eudamus mexicanus, for which we are 

 indebted to Dr. Staudinger, enables us to state that it agrees with a series of specimens 

 in our collection from Mexico and Western North America, the latter sent us by 

 Henry Edwards and Mr. Strecker under Mr. Scudder's name T. nevada. As 

 Mr. Lintner has already stated, the species is quite distinct from Thorybes jpylades 

 (Scudd.). The male having no costal fold brings it into the same genus as Thorybes 

 bathyllus, with which it also agrees in the development of the terminal joint of the palpi. 



The male genitalia resemble those of T. bathyllus ; the tegumen is cleft, the scaphium 

 well developed, the harpes are drawn to a blunt point, and there is a fissure on the 

 dorsal edge. These organs therefore resemble those of Eudamus proteus. (See 

 Tab. LXXX. fig. 17.) The imago figured is from Omilteme. 



