24. IIAUSTELLATA. — LEPIDOPTERA. 



it feeds solitarily on the Cardamine impatiens, Turritis glabra, Brassica 

 campestris, &c. preferring the seeds. The chrysalis is either green or brown, 

 with a fulvous spot on the wing-cases in the male ; the middle is swollen and 

 conical, with the extremities much produced and fusiform. 

 A common and highly beautiful species, occurring at the end of 



May in lanes, meadows, and gardens. 



(From the trifling attention which has hitherto been bestowed upon the Pontise, 

 I fear my readers will hastily exclaim that I have been too diflPuse in my 

 descriptions, and that " all the species are merely varieties ;" but I trust that 

 such persons will cautiously investigate the subject— which I freely confess 

 requires elucidation— before they prejudge the question. It may, however, 

 be remarked, that the above observations originated solely from an examina- 

 tion of recent specimens, without my being aware that they corresponded with 

 those of Petiver, whose work on the British Papihones— in which the Pontiae 

 are subdivided as above, with the exception of P. Chariclea and Napaeae— was 

 pubUshed upwards of a century ago, though totally disregarded by subsequent 

 writers ! 



Genus V. — Leucophasia* mihi. 



Antennw with an abrupt, obconic, compressed club : palpi very short, depressed, 

 three-jointed, the basal joint large, conic, the second small, quadrate, the ter- 

 minal one minute, globose : iviiigs opaque, suborbicular, the discoidal cell 

 small, basal ; posterior wings slightly grooved : legs alike in both sexes, mo- 

 derate : claws distinct, bifid. Caterpillar cylindric, downy. Chrysalis angu- 

 lated, fusiform, supported by a transverse thread. 



The same principles which justify the separation of many of the 

 well-established and incontroverted genera among the Coleoptera, 

 authorize the disengagement of the present genus from Pontia; 

 but although a strenuous advocate for the establishment of genera 

 upon important variations of structure, it is not without reluctance 

 that I add another generic name to the almost infinite number with 

 which the pages of entomological works are necessarily filled, from 

 the vast extent of the science ; however, in this instance I feel less 

 regret than 1 should otherwise have done, from my path having 

 been traced out by Mr. Curtis, whose published characters are 

 incorporated above, in his remarks upon the genus Pontia, although 

 I had previously divided Leucophasia from that genus in my MS, 

 but without a name. 



Sp. 1. Sinapis. Alis albis, immaculatiSy anticis supra apice Juscis, 



post'icis suhtus cinerascente-nehulosis. (Exp. alar. 1 unc. 4 — 10 lin.) 



Pa. Sinapis. Linne. — Lexmn,pl. 29./. 4.5. — LeSinapis. Steph. Cat. 



* Afuxo,-, alhus — Bairi,', apparitio. 



