IDMAIS. 



59 



Genus IX. IDMAIS Boisd. 

 Boisd. Sp. Gin. i. 584. (1836). 



Pieris Latr., God*. 

 Pontia Horsf., Klug. 

 Colotis Hiibn. 



Head rather broad, clothed with scales. 

 Eyes round, moderately prominent. 



Labial Palpi scaly and hairy. First joint subcylindrical, curved, slightly compressed ; second 

 joint swollen in the middle, truncate at the apex, equal to the first ; third joint oval, two fifths 

 of the length of the second. 

 Antenna} short, terminating in a short, compressed, ovoid club. 

 Thorax rather stout. 



Anterior Wings subtriangular. Costal nervure four-branched. First discoidal nervule united to 



the subcostal for a short space beyond the cell. 

 Posterior Wings obovate. Discoidal nervure appearing to be a third subcostal nervule. Disco- 

 cellular nervule nearly atrophied. 

 Legs slender. Claws deeply bifid. Paronychia subtriangular, shorter than the claws. Pulvillus 

 jointed, slender, as long as the claws. 

 Abdomen slender, not so long as the abdominal margin of the posterior wings. 



Larva and Pupa unknown. 



All the species of Idmais have a peculiar facies ; owing partly to the texture of the wings, less delicate than in 

 Anthocharis, more so than in Thestias ; and partly to the fulvous or brick-red colour in the wings of all the species as 

 yet known. 



The countries bordering on the Red Sea appear to be the part of the globe where this genus is most abundant, but 

 it occurs also in Southern and Western Africa, and in the southern parts of the continent of India, 



IDMAIS Boisd. 



1. Idm. Chrysonome Boisd. Sp. Gen. 1. 585. n. 1. (1836). 



Pont. Chry. Klug-Ehrenb. Symb. Phys. Ins. t.~. 

 f. 9-11. (1829-45). 

 Arabia, Congo. B. M. 



2. Idm. Fausta Boisd. Sp. Gen. i. 586. n. 2. (1836). 



Oliv. Voy. en Syrie, t. 33. f. 4. (1801-7). 

 Pi. Fau. Godt. Ene. M. ix. 132. n. 41. (1819). 

 Syria, Arabia. 



3. Idm. Phisadia Boisd. Sp. Gen. i. 587- n. 3. (1836). 



Pi. Ph. Godt. Enc. M. ix. 132. n. 40. (1819). 

 Pont, Arne Klug-Ehrenb. Synth. Phys. Ins. t. 7. 

 f. 1 4. (1829-45). 

 Arabia, Senegal. B. M. 



April, 1S+7. 



4-. Idm. Calais Boisd. Sp. Gen. i. 587- n. 4. (1836). 



P. Cal. Crnm. t. 53. C. D. t. 351. f. A— D. 



(1782). 

 P. Amata Fab. Ent. Sysl. Hi. i. 202. n. 633. 



(1793). 

 Pi. Am. Godt. Enc. M. ix. 131. n. 39. (18l6). 

 J P. Ciprsa Fob. Ent. Sy.it. in. i. 202. n. 634. 



(1793). 

 India, S. Africa. B. M. 



5. Idm. Dynamene Boisd. Sp. Gen. i. 588. n. 5. (1836). 



Pont. Dy. Klug-Ehrenb. Symb. Phys. Ins. t. 7. 

 f. 5, 6. (1829-45). 

 Arabia. 



