78 



PIERIDjE. 



colour. This is particularly the case in those species the males of which, like Tcrias Elathea, have a black vitta, 

 margined with orange along the inner margin. This vitta is generally wanting in the females, the orange is always 

 wanting. 



The LAEViE are more linear, and taper less towards the extremities, than is commonly the case in this family. They 

 are mostly green, with a pale lateral stripe, and appear to feed chiefly, if not exclusively, on Leguminosse. 



The PuPiE in many respects resemble those of Anthocharis, being more navicular than those of Colias and 

 Callidryas. 



The Perfect Insects frequent the neighbourhood of woods, and occasionally open meadows and gardens. In the 

 United States, especially the Southern and Western States, Terias Nicippe is very abundant in open plains near the 

 forests, and in the states of Ohio and Illinois, I have seen it flying in profusion over the fields of clover, in company 

 with Colias Philodice and C. Csesonia. Its flight more resembles that of these insects than of its congeners. Terias 

 Lisa and T. Delia in the United States, and T. Albula in Cayenne, are insects of weak flight, frequenting the skirts 

 of woods, and even occurring in the gardens of towns. 



Terias Elvina and T. Brephos are confined to the thick virgin forests of Guiana and Brazil, where they fly very 

 slowly, and near to the ground. 



This genus occurs throughout all the tropical and subtropical parts of the globe, extending in the Old World further 

 from the equator in the southern hemisphere than in the northern, and having a greater range to the north in the New 

 World than in the Old, three species occurring in the United States as far north as Virginia, whilst, I believe, no 

 species has as yet been found even in the parts of Asia and Africa bordering upon the Mediterranean. The range of 

 some of the species is very great ; and as they are subject to great local variations, and as the distinctions which separate 

 the truly distinct species are often very slight, the genus is one of the most difficult amongst the Diurnal Lepidoptera. 

 The following list must therefore be regarded as only an attempt to elucidate the species. Many single specimens of 

 apparently distinct species exist in the collection of the British Museum, but in a genus like this, no one ought to 

 found a species on a single specimen. 



1. Ter. NiciprE Boisd. Sp. Gen. i. (>;>.*;. n. 1. (1836). 



P. Nic. Cram. t. 210. f. C. P. (17S0). 



Fab. Ent. Syst. in. i. 208. a. 651. (17.03). 

 Abaeis Nic. Hiibn. Fens. bek. Schmett. 97. 



(1S16). 

 Col. Nic. Godt. Ene. M. ix. 103. n. 43. (1819). 

 Xanth. Nic. Boisd. et Lecomte, Iron. Lip. Am. 

 Sept. t.2(). f. 1-5. (1827). 

 United States ( Middle and Southern States), Mexico. 



B.M. 



2. Ter. Proterpia Boisd. Sp. Gen. i. 654. n. 2. (I83(i). 



P. Prot. Fab. Syst. Ent. 478. n. 152. (1775). 

 Col. Prot. Godt. Erie. M. ix. 91. n. 5. (1819). 

 Jamaica, Haiti, Mexico, Venezuela. B. M. 



3. Ter. Mexican a Boisd. Sp. Gen. 1. 6.55. 11. 5. t. 3 C. f. 1. 



(1836). 

 Mexico. B. M. 



4. Ter. Gratiosa Boisd. MSS. 



Doubkday § Hewitson, t. 9. f. 5. (1847). 

 Venezuela. B. M. 



5. Ter. Ectriva. 



Quito. B. M. 



6. Ter. Arbela Boisd. Sp. Gen. 1. 606. n. 4. (1836). 



Eurema Arb. lliibn. Zut. f. 641, 6 12. (1S2 ). 

 Brazil. B. M. 



TERIAS Swainson. 



7. Ter. De\ a. 



I*. Agave Fub. Ent. Syst. m. i. 193. n. 599. 

 (1793). 

 Donovan, Nat. Rep. t. 6. f. 2. (1823). 

 Pi. Ag. Godt. Enc. M. ix. 135. n. 52. (181 9). 

 Brazil. B. M. 



8. Ter. Tenella Boisd. Sp. Gen. 1. 657- n. 6. (1836). 



Mane, fugax Nise 3 Hiibn. Samml. Exot. 



Sehmett. (1806-27). 

 Pi. Neda Godt. Enc. M. ix. 135. n. 54.? 

 (1819). 

 Brazil. B. M. 



9. Ter. Nise. 



P. Ni. Cram. t. 20. f. K. L. (1775). 



Mane, fugax Ni. Hiibn. Samml. Exot. Schmett. 



(1806-27). 

 Eurema Ni. Hiibn. Vers. bek. Sehmett. 96. 



(18 16). 

 Guiana, Venezuela. B. M. 



10. Ter. Venusta Boisd. Sp. Gen. 1. 65S. n. 8. (1836). 



Jamaica, Colombia. 



11. Ter. Gentilis Boisd. Sp. Gen. 1. 658. n. 9. (1836). 



Brazil, Colombia. B. M. 



12. Ter. Leuce Boisd. Si,. Gen. 1. ()59. n. 10. (1836). 



Uruguay. B. M. 



