344 



MORPHID.E. 



DASYOPHTHALMA. 



1. Das. Rusina. 



Morpho Rus'ma Godart, Enc. 31. jx. p. 451. n. 93. ; E. 



Doubleda;/, List Lep. Brit. Mus. p. 117- (Caligo Rus.); 



Douhl. Tf'estw. i^ Heioits. Gen. Diurn. Lep. pi. 56. 



f. 1. (Pavonia R.). 

 Pavonia Lycaon Lucas, Lep. Exot. t. 7S. f- !• 

 Brazil. B. M. 



2. Das. Cbeisa. 



Caligo Creusa Hiibner, Samml. exot. Schm. Band ii. pi. — . 



(male), pi. — . (female) ; E. Dottbleday, List Lep. Brit. 



Mus. p. 117. 

 Morpho Anaxandra Godart, Enc. M. ix. ]>. 451. n. 34. ; 



Boisduval in Curier's Rigne An. ed. Crochard, /)i*. 



pi. 141. f. 1. (Pavonia Anax.) ; Blancliard, Hist. Nat. 



Ins. 111. Lepid. pi. 17. f. 1. 

 Papilio Sophorse Donov. A^at. Repos. t. 87, 88. (but not of 



Linnseus). 

 Brazil. 



Genus VII. OPSIPHANES E. Doubleday MS. 



MoEPHO p. God'. Enc. M. 



Pavoxia p. Goc?. Enc. M. Suppl. 



Brassolis p. Hiibner, Verz. 



Pavoxia ? E. Doubleday, List. Lep. Brit. Mus. 



Body robust ; wings moderately large ; fore wings more or less concave in the apical margin ; prediscoidal cell of hind 



wings large. 

 Head moderate-sized, hairy, slightly tufted in front. 



Eyes large, naked. 



AntenncB variable in length, but generally not half the length of the fore wings, slender, and terminated by a long 

 and slender club (more robust and clavate in P. Cassife and its allies). 



Labial Palpi compressed, more or less erect, and elevated to the level of the top of the ej'es, densely clothed with 

 thick hairs lying close together; the back of the middle joint without a decided tuft in the middle resting on 

 the face ; the terminal joint small and oval, and porrected only to a short distance in front of the face. 

 Thorax robust and hairy. 



Fore Wings large, subtriangular. Fore margin well arched ; apical angle generally rounded. Apical margin 

 about two thirds of the length of the anterior ; anal angle rounded. Inner margin about the length of the 

 apical, generally straight, or but slightly convex in the males. Costal vein extending to two thirds of the 

 length of the wings. Postcostal with the first and second branches arising close together, about half the 

 length of the wings, a little before the anterior extremity of the discoidal cell ; third branch arising at about 

 two thirds of the length of the wing; fourth branch arising at about five sixths of the length. Upper disco- 

 cellular arising at about half the length of the wing, short, oblique ; middle disco-cellular considerably longer, 

 less oblique, and sometimes a little curved, the concavity being towards the tip of the wing ; lower disco- 

 cellular less oblique, about equal in length to the middle one, uniting with the third branch of the median vein 

 at almost a right angle, the space between the base of this third branch and tlie junction being generally 

 greater than exists between tlie first and second branches, the terminal part of the third branch beyond the 

 angle being nearly straight. The discoidal cell extending beyond the middle of the wing. 



Hind Wings oval, or elongate-oval. The outer margin generally entire (but sometimes waved) ; and the anal 

 angle generally rounded. Precostal vein forked, the anterior branch extending forward almost at a right angle, 

 with the tip incurved. Costal vein extending to tlie extremity of the costal margin ; its base angulated, and 

 forming a prediscoidal cell of considerable size by its junction with the precostal vein. Upper disco-cellular 

 vein forming the curved base of the discoidal ; lower disco-cellular uniting in an acute angle with the third 

 branch of the median vein at a short distance from its origin, closing the long narrow discoidal cell. On the 

 upper side there is an elongated very narrow pouch, running longitudinally near the base of the first branch 

 of the median vein, which receives a pencil-like brush of long hairs arising near the inner edge of the discoidal 

 cell of these wings ; there is also a tuft of long hairs nearer the abdominal margin, about opposite to the middle 

 of the abdomen. 



Fore Legs of the male slender, and but slightlj' brush-like. Those of the female scarcely longer than in the 

 male, scaly, slender. The tarsus with minute spines on the inside. 



Four Hind Legs long, robust, and but slightly spinose above, but armed with several rows of spines set very 

 closely on the under side. 

 Abdomen robust. 



