DASYOPHTHALMA. 343 



Genus VI DASYOPHTHALMA Westw. 



MoRPHO p. GodK 



Pavonia p. God'. (Enc. M. SuppL), E. Douhledaij. 



Caligo p. Hub7ier, E. Doubkdai/. 



Body robust ; wings moderately large, vnth the apical margin rounded ; eyes hairy. 

 Head large, finely hairy, not tufted in front. 



Eijes large, prominent, densely clothed with short hairs in both sexes. 



Antennce slender, not quite half the length of the foi'e wings, slightly curved at the base as well as at the tip ; 

 joints moderately distinct ; terminated by a very slender and elongated club, finely carinated beneath. 



Labial Palpi much compressed, hairy, porrected obliquely ; the tip being nearly as high as, or higlier than, the top 

 of the eyes, but not extending far beyond the front of the head; basal joint very hairy; back of the middle 

 joint slightly hairy ; terminal joint small and conical. 

 TnORAX robust, short, and hairy. 



Fore Wings moderately large, triangular-ovate. Costal margin moderately arched ; apical angle rounded. 

 Apical margin about two thirds of the length of the costal, convex, slightly scalloped ; inner angle rounded. 

 Inner margin about as long as the apical, more convex in the males than in the females. Costal vein 

 extending about two thirds of the length of the costa. Postcostal with its four branches free ; the first and 

 second arising before the anterior extremity of the discoidal cell ; the third at about two thirds, and the fourth 

 at about five sixths, of the length of the wing. Outer disco-cellular vein arising at nearly half the length of 

 the wing, about as long as the space between the second postcostal branch and its origin, very obhque ; middle 

 disco-cellular about three times as long, very slightly curved, oblique : outer disco-cellular nearly half as long 

 as the middle one, arising in a rather obtuse angle, and closing the discoidal cell transversely nearly at two 

 thirds of the length of the wing ; uniting with the third branch of the median vein at a greater distance from 

 its base than exists between the origin of the first and second branches ; the third branch quite straight 

 beyond the junction. 



Hind Wings subovate, rather dilated at the outer angle, which is rounded, as well as the anal angle. The outer 

 margin scalloped. Precostal vein forked ; the anterior branch short, and at riglit angles ; the posterior branch 

 forming a prediscoidal cell by its junction with the base of the costal vein (which looks more like an anterior 

 branch of the postcostal vein), the ordinary first branch of which arises at about one fourth of the length of the 

 wing. The outer disco-cellular vehi arises at a very short distance beyond it; this outer disco-cellular is 

 quite straight, forming tlie base of the discoidal vein. The discoidal cell is closed by a nearly transverse 

 vein, uniting with the third branch of the median vein at nearly a right angle, at a rather shorter distance 

 from the oi'igin of the latter than exists between the origin of the first and second median branches ; the third 

 branch beyond the junction being straight. On the upper side, the hind wings in the males have an oval 

 velvety patch, traversed by the postcostal vein and the base of its branch, generally covered by the inner 

 margin of the fore wings ; there is also a smaller oval space near the base of the discoidal cell, denuded of 

 scales, but furnished with a tuft of black erect hairs. 



Fore Legs of the male very short, but rather robust, pectoral, thickly hairy, and brush-like. The tibia and 

 tarsus united scarcely longer than the femur. The tarsus two tliirds of the length of the tibia, and exarticulate. 

 Fore Legs of the female two thirds longer than those of the male, thickly clothed with slender scales. Tibia 

 nearly as long as the femur. Tarsus thick ; the basal articulation half the length of the tarsus ; second, 

 third, and fourth joints transverse, each with a pair of spines on the inner edge ; terminal joint minute, and 

 without claws. 



Four Hind Legs long, thickly squamose. Tibia and tarsus strongly spined; the spines on the upper side 

 dispersed, those beneath and on the side in rows. Tibial spurs moderately long. Tarsus as long as the tibia. 

 Paronychia bifid ; the outer lacinia acute, curved, and as long as the ungues. Pulvillus short. 



The two insects for which I have ventured to propose the present genus differ from the typical species of Caligo in the form of the 

 wings, the large size of the prediscoidal cell of the hind wings, the character of tlie markings of the under surface of the wings, the 

 position of the plush-like ]iatche3 and fisoicles of hairs on the up[)cr surface of the hind wings, and especially in the very hirsute 

 condition of the eyes. Mr. E. Doubleday had, indeed, in his List of the Lcjiidoptcra of tlie British Museum Collection, so])aratcd tliem 

 (with P. Synie and Batea) from the tyjics of Caligo (which he there named Pavonia); but in the sultsequently published Plate LVI. 

 of the present work he reunited I^. liusina with tlie genuine species of Caligo (Pavonia E. D.). This beautiful species, as well as 

 P. Creusa, has the greater portion of the wings beneath, including the whole of the discoidal cell of the fore wings, marked with a vast 

 number of very slender, dark brown, and pale buftj transverse, irregular streaks ; the hind wings being marked with two or three 

 beautiful ocelli, and the fore wings with one or two smaller ones : on the fore wings there is also an oblique pale fascia, as on the upper 

 side. The two other species, P. Syme and Batea, appear to mc to belong to the group which Mr. E. Doubleday termed Opsiphanes. 

 February 1. IS.'il. " 4 X 



