DION.— FLACCILLA. 593 



l. Dion gemmatus. (Tab. oil. figg. 37, 38, <y .) 



Carystus gemmatus, Butl. Cist. Ent. i. p. 86 \ 



Alis brunneo-f uscis, stigmate griseo : subtus anticis dimidio apicali, venis exceptis, raulto pallidiore ; posticis 

 nigrescentioribus, maculis tribus vel quatuor in linea transversa ultra cellulam casruleis, maoulis quatuor 

 submarginalibus, et alia inter venam medianam et submedianam ad cellular finem, rufo-ferrugineis ; 

 capite et corpore subtus nigro-fuscis. 



$ ignota. 



Hob. Costa Rica ( Van Patten *) ; Panama, Chiriqui (ArcS). 



We possess three worn specimens of this species, including the type, all of which are 

 males. For the genitalia, see Tab. CII. fig. 38. 



B. Terminal joint of the palpi long and erect *. 

 FLACCILLA, gen. nov. 



Papilio wcas, Cram., which we take as the type of this genus, is nearly allied to 

 Carystus, but differs from it in having long erect palpi, a conspicuous treble brand 

 on the primaries in the male, and the discocellulars of these wings are almost equal 

 in length. 



The antennae are nearly two-thirds the length of the costa, and have a rather slender 

 club, terminating in a long crook. The third joint of the palpi is long, erect, and 

 pointed. The primaries are elongate, arched on the costa at the base, and blunt at 

 the tip ; the cell is about two-thirds the length of the costa ; the discocellulars are 

 strongly oblique and about equal in length, the lower one much longer than the third 

 median segment ; the first branch arises about the middle of the median nervure, the 

 second at some little distance before the lower angle of the cell. The secondaries 

 are slightly lobed at the anal angle ; the cell is a little more than half the length of 

 the wing; the discocellulars are faint, the lower one oblique. The body is rather 

 slender. The middle tibia? are without spines and the hind tibiae have two pairs of 

 spurs. The primaries of the male have an elongate, slender, >-shaped brand in the 

 angle between the second median segment and the first median branch, a longitudinal 

 streak immediately below this, and a third still longer streak along the upper edge of 

 the submedian nervure ; the secondaries have a fringe of long hairs along the upper 

 edge of the abdominal fold in this sex. 



1. Flaccilla aecas. (Tab. en. figg. 39, 40, s .) 



Papilio cecas, Cram. Pap. Exot. t. 343. ff. A, B L . 



Alis fuscis, stigmate concolore, anticis maculis duabus in cellula elongatis, tribus infra et ultra cellulam in 

 linea obliqua, una submediana, secunda majore inter ramos medianos primum et secundum, tertia ultra 



* Very slender in the genus Callimorrnus and others. 



