258 EHOPALOCEEA. 



The male genitalia in A. pionia are somewhat similar to those of typical Pyrrhopyge ; 

 the two elongated rods proceed backwards from the middle of the dorsal edge of the 

 harpagones, the tegumen is divided and has a blunt rod proceeding from the base on 

 either side. (See Tab. LXXIII. fig. 25.) 



YANGUNA. 



Yanguna, Watson, P. Z. S. 1893, p. 12. 



Yanguna has the dorsal fringe of hairs to the hind tibiae as in Pyrrhopyge. The 

 third segment of the median of the primaries is short and less than half the second 

 segment, the third segment of the subcostal is about half the second segment; the 

 second median branch of the secondaries starts from before the end of the cell. 

 Y. crida is aberrant, inasmuch as the second and third segments of the subcostal are 

 subequal. 



The number of species in this genus is about seven or eight, two of which occur in 

 our region. 



l. Yanguna cosyra. (Tab. LXXIV. figg. l, 2 <j .) 



Pyrrhopyga cosyra, Druce, Cist. Ent. i. p. 363 \ 



Alis purpureo-nigris ; anticis bifasciatis, fascia una per ccllulam trifida, altera ultra earn bifida, maculis fcribus 

 subapicalibus, omnibus semihyalinis ; anticis ad basin posticis bitriente basali fuivis ; thorace paulo 

 obscuriore : subtus cbalybeo-nigris, anticis faisciis et maculis ut supra, posticis immaculatis ; capite nigro 

 albo punctato, palpis (prseter apices) genis, femoribus extus et annulis abdominalibus albis. 



Hab. Guatemala, Cubilguitz {Champion) ; Nicaeagua, Chontales {Belt) ; Panama, 

 Bugaba {Champion, Arce 1 ), Chiriqui {Bibbe, inmus. Staudinger). — Colombia; Peku. 



This species is closely allied to Pyrrhopyga spatiosa of Hewitson, the type of which 

 came from Ecuador. The describer of the latter species did not distinguish between 

 Nicaraguan specimens obtained by Belt and his types from Ecuador. Mr. Druce, 

 however, described Panama examples under the name we now use, but made no com- 

 parison with its near ally 1 . Compared with Y. spatiosa, the present species is more 

 fulvous on the body and at the base of the wings, the Ecuadorian form being of a 

 darker, redder colour, the rings on the abdomen are much more definite, the bands on 

 the primaries are nearly parallel instead of converging, and the palpi are almost entirely 

 white ; moreover Y. spatiosa has a red spot on the secondaries beneath near the base 

 which does not appear in Y. cosyra. On the whole the two forms seem fairly separable. 



Though a widely distributed species it is nowhere common. 



The male genitalia have the harpagones much as in typical Pyrrhopyge. The tegu- 

 men is divided in the middle, each portion being bent downwards with a rounded end; 

 there is a subtriangular lateral lobe from each side, the outer edge of which is serrate. 

 (See Tab. LXXIV. fig. 2.) 



