166 NYMPHALIDtE. 



opposite to the origin of its second nervule, or with the base of the third nervule, which is 

 but little curved. 



Anterior Legs of the mule clothed with long delicate hairs. Tibia shorter than the femur, 

 cylindric. Tarsus shorter than the tibia, nearly cylindric, tapering to a point at the apex. 

 Anterior Legs of the female scaly and hairy. Tibia shorter than the femur, spiny 

 within towards the apex. Tarsus shorter than the tibia ; the first joint longer than the 

 rest combined, curved, spiny within and armed, as are the three following joints, at the 

 apex with a stout spine covered by a tuft of hair at the base of the following joint ; fourth and 

 fifth joints transverse. 



Middle and Posterior Legs with the tibite shorter than the femora, spiny externally and 

 laterally, the lateral spines longest ; spurs long and stout. Tarsi about one fourth longer than 

 the femora, rather densely spiny all round ; the spines of the upper surface slenderest, 

 the lateral ones the longest, those of the lower surface arranged in two regular series : 

 first joint exactly ecpial to the rest combined ; second, third, and fourth progressively 

 shorter; fifth of equal length with the third. Claws rather short, curved, compressed. 

 Paronychia bilaciniate : the outer lacinia as long as, and broader than, the claw, which it quite 

 covers ; inner nearly strap-shaped, slightly tapering, very little shorter than the outer one. 

 Pulvillus two-jointed, as long as the claw; the second joint broad. 

 Abdomen short, rather stout. 



Larva cylindrical, spiny ; the spines on all the segments about equal in length. 

 Pupa elongate ovate, constricted, spiny. 



Atella, in many respects, is too closely allied to the two preceding genera, and it is with much hesitation that 

 I have admitted it to the rank of a genus. There is nothing more difficult in Natural History than to insure 

 the uniformity of value of the groups into which we arrange species, and to determine the importance of variations 

 of structure in different groups. Before the close of this work I hope to enter fully into these questions, and to review 

 rigorously and revise carefully all the generic or minor groups which I may characterise. In this I hope to be 

 aided by the criticisms which my labours may receive in the course of their publication, and I take this opportunity 

 of recording my wish for the closest scrutiny of all my observations and deductions. 



From the preceding genus this differs in its clavate antenna?, and from Euptoieta by the structure of its feet 

 and other characters. It appears, like the four preceding genera, to be an Old World group, its range being the 

 subtropical and tropical parts of Asia and Africa. Two species, which, however, I place here with hesitation, as in 

 many xespects they seem more allied to the preceding genus, arc found in the islands of the Pacific Ocean. Having only 

 seen the two rather imperfect specimens of one of them in the collection of the British Museum, I have not been able to 

 examine these with sufficient care and minuteness to determine their true position. Possibly these and other Polynesian 

 species yet to be discovered may constitute a distinct group. 



The Larva of Atella Phalanta, figured by Dr. Horsfield, is cylindric, green above, whitish below, with the head 

 brown. Each segment bears on the back two branched spines, and those segments which have neither legs nor prolegs 

 have also a similar spine at the side. 



The Pupa is elongate ovate, constricted across the back ; green with four red dashes on each side, marked in the 

 middle with bluish ; a double series of spines on the back of the same red colour. 



No information is on record as to the habits of this genus. 



