204 MR. J. O. WESTWOOD ON THE LEPIDOPTEROUS 



fore wiBgs differs witli 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 estremity, b 2 arising at a little distance beyond the cell, followed at a very 

 short distance by J 3, 6 4 extending to the extremity of the wing. (See Plate XXIX. 

 fig. 22.) . 



Genus E.othia. 



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 

 EusemicB, in which the small cell is wantiag, Pl. 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. ])ales and simyra. They may advantageously be formed into a separate genus, 

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



1. EOTHIA PALES. 



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

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



Sab. 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 agrim, Boisduval, in Herrich-Schaffer, op. cit. f. 83 ; Mon. Agaristides, p. 72 (Eusemia agr.) . 



4. ROTHIA PEDASUS. 



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

 p. 73 {Eusemia ped.) . 



5. RoTHiA siMYRA. Atra, capite et coUo flavo-guttatis : aUs anticis elongatis nigris, 



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

 medio costse fere ad angulum analem extensa flavescentibus ; alis jjosticis atris, 

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

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



Sab. Madagascar. In Mus. Hopeiano OxoniEe. 



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



Genus ^giale, Felder. (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 ' G^nera of Diurnal Lepidoptera,' p. 506) as remarkable for wanting spurs to 



