426 RHOPALOCERA. 
dente, sed costam non attingente; posticis preter margines pallide flavis; subtus ut supra, posticarum 
margine nigro per costam totam non extendente. 
Hab. Panama, line of railway (Ridbe 3). 
Described from a female in Dr. Staudinger’s collection, taken by Herr Ribbe on the 
Isthmus of Panama. We have never seen another example of it. In its general appear- 
ance it is not unlike P. mimula, but is very much larger. 
PARNES. 
Parnes, Westwood, Gen. Diurn. Lep. p. 464 (1851). 
Only two species are known to belong to this genus; both of them are found in the 
Amazons valley and Guiana, and a single specimen of P. nycteis has been taken in the 
State of Panama. 
The subcostal nervure in the primaries of P. nycteis emits two branches before the 
end of the cell and one after it, the first branch anchyloses with the costal to a slight 
extent; the middle discocellular meets the upper radial just before the latter joins the 
subcostal so that there is a very short upper discocellular; the lower discocellular is 
atrophied towards its upper end, it meets the median a little beyond its second branch ; 
the costal side of the cell is longer than the median side. The secondaries have a basal 
nervure ; the discoidals are much atrophied, the upper meets the subcostal a little beyond 
the first branch, the lower the median opposite the second branch; the costal and 
median sides of the cell are about equal. 
The front legs of the male have a very long coxa, the trochanter being inserted more 
than two thirds of its length from its base, the femur, tibia, and tarsus are all extremely 
short, the tibia being slightly the longest. The form of these legs much resembles that 
of Perophthalma tenera and Mesosemia mollina ; the wings, however, have a very different 
neuration. The palpi have a small terminal joint, = 4 middle joint, which is dilated 
towards the middle. There are twenty-nine joints to the antenne, of which the terminal 
ten form an abrupt club. 
The harpagones of the secondary male organs are subtriangular, the lower side 
undulating, the apex pointing slightly upwards, and setose on the outer surface. The 
penis is short and slightly decurved, with the usual strap connecting it with the 
harpagones, 
1. Parnes nycteis. 
Parnes nycteis, Westw. in Doubl. & Hew. Gen. Diurn. Lep. p. 464, t. 73. f. 37. 
Alis fuseis, subtus undique fulvo vermiculatis, marginibus externis ejusdem coloris, ciliis fuscis, ocellis ad 
angulos apicales nigris albo bipupillatis. 
Hab. Panama, Chiriqui (mus. Staudinger).—AMAZONS VALLEY; BRITISH GUIANA. 
The only specimen we have seen of this little species from Central America was 
submitted to us by Dr. Staudinger ; it agrees well with our series from the Amazons 
valley, except that the subapical ocelli are very small. 
