204 MR. J. O. WESTWOOD ON THE LEPIDOPTEROUS 



fore wings differs with respect to the small postcostal cell, which emits one branch, b 5, at 

 its extremity, whilst the main stem of the postcostal vein arises from its anterior edge 

 near the extremity, b 2 arising at a little distance beyond the cell, followed at a very 

 short distance by b 3, b 4 extending to the extremity of the wing. (See Plate XXIX. 

 fig. 22.) 



Genus Rothia. 



Another group of species, also closely allied to the preceding, are natives of Mada- 

 gascar, and have the small postcostal cell very narrow (thus differing from the typical 

 Eusemice, in which the small cell is wanting, PI. XXIX. f. 20). They also have the 

 branch b 2 arising from its upper extremity, and running free nearly to the tip of the 

 wing, b 3 arising halfway between the cell and the tip of the wing, whilst b 5 arises 

 close beyond the extremity of the postcostal cell ; such at least is their arrangement 

 in C. pales and simyra. They may advantageously be formed into a separate genus, 

 to which the name of Rothia may be applied. Here belong 



1. Rothia pales. 



Agarista pales, Boisduval, in Guerin, Icon. R. An. pi. 83. f. 1 ; Faun. Ent. Madag. pi. 10. f. 1, 2. 

 Eusemia pales, Boisduval, Mon. Agarist. p. 75. no. 35 ; Walker, List Lep. Het. B. M. i. p. 54. 



Hab. Vicinity of Tananariva, Madagascar. In Mus. Hopeiano Oxonise. 



2. Rothia eriopis. 



Agarista eriopis, Boisduval, in Herrich-Schaffer, Auss. Schm. f. 31 ; Mon. Agaristides, p. 71 [Eusemia er.). 



3. Rothia agrius. 



Agarista agrius, Boisduval, in Herrich-Schaffer, op. cit. f. 33 ; Mon. Agaristides, p. 72 (Eusemia agr.) . 



4. Rothia pedasus. 



Agarista pedasus, Boisduval, in Herrich-Schaffer, op. cit. f. 32 (nee 34 ut in Bdv.) ; Mon. Agaristides, 

 p. 73 (Eusemia ped.) . 



5. Rothia simyra. Atra, capite et collo flavo-guttatis : alis anticis elongatis nigris, 



gutta minima humerali fasciaque transversa parum sinuata (postice paullo latiore) e 

 medio costae fere ad angulum analem extensa flavescentibus ; alis posticis atris, 

 fimbria ad angulum externum alba ; corpore infra, pedibus, et abdominis lateribus 

 lutescentibus ; alis posticis subtus dimidio basali rufo. Expans. alar. unc. 2f . 



Sab. Madagascar. In Mus. Hopeiano Oxonise. 



The arrangement of the wing-veins of this species was noticed above. 



Genus iEGiALE, Pelder. (Wien. ent. Mon. iv. 110, 1860.) 



Type JEgiale Kollari (Castnia hesperiaris, Walker, List Lep. Het. B. M. pt. vii. p. 1583). 



This Mexican insect is no other than the large Hesperian butterfly first mentioned by 

 me (in the ' Genera of Diurnal Lepidoptera,' p. 506) as remarkable for wanting spurs to 



