156 THE ENTOMOLOGIST’S RECORD. 
genus Cis in Britain) having taken some specimens which he thought 
might be CU. dentatus, borrowed the Mitford specimen to compare them 
with. 
He has come to the conclusion that the insect in question is not C. 
dentatus, but a rather striking aberration of C. alni. I agree with him 
in this, having recently examined all the specimens of Cis at the British 
Museum with him. The supposed Cis dentatus is pubescent (whereas 
C. alni is shining), the puncturation is very distinct, the larger punc- 
tures in the elytra being themselves punctured, and to my mind the 
anterior angles of the thorax are much sharper than in (. alni. Some 
of our coleopterists would not hesitate to describe this beetle as a new 
species, but it seems to me to be better to treat it as an aberration of C. 
alni, for which I propose the name of mitfordi, n. ab. 
Bibliography of Pieris napi, its forms and close allies. 
By Hy. J. TURNER, F.E.S. 
It bas been suggested that a list of all the chief references to Pieris 
napt would be of use to the many entomologists who take an interest 
in this very common, very variable, and very extended species, and its 
close allies. The list does not claim to have exhausted the referances, 
which might be increased by further research, but it is hoped ttiat it 
may contain all the principal items, and form a basis for a more 
complete study of this important species. [o.d.—original description. ] 
1634. Mouffet.—‘ In. Min. An. Theatr.,” p. 94, 105. 
1667. Merrit.—‘ Pinax,” p. 198. 
1695. Petiver.—< Mus. Pet. Cent.,” p. 88. 
1707. Petiver.—‘ Gazophyl.,” pl. 62. 
1710. Ray (Lister).—“ Hist. Ins.,” p. 114, 358. 
1715. Sepp.—‘ Beschou. Wond. Gods Ned. Ins.,’”’ vol. i., pt. 2, 
pale spl ae 
1717. Petiver.—< Pap. Icones,” pl. 1. 
1720. Albin.— Nat. Hist. Br. Ins.,” pl. 52. 
1730. Merian.— Hist. Ins. Eur.,” vol. ii., p. 77, pl. 89 (89). 
1746. Linneus.—‘ Fn. Suecica,” p. 797. 
1747. Wilkes.—‘‘ Eng. Moths and Butt.,” p. 50, pl. 62, 98, 106. 
1758. Linneus.—< Sys. Nat.,” ed. x., p. 468. 0.d. nap. 
1761. Linneus.—‘ Fn. Suec.,” ed. alt-auc., p. 271. 
1761. Poda.— “ Mus. Gree.,”’ p. 64. 
1762. Geoffroy.— Hist. Ins.,”’ vol. ii., p. 70. 
1763. Gronovius.—‘‘ Zoo. Gron.,” p. 191. 
1768. Scopoli.— Ent. Carn.,” p. 171. 
1764. Muller.—* Fn. Ins. Fridr.,”’ p. 88. 
1764. Petiver.—< Opera,” vol. ii., pl. 1. 
1766. Hufnagel.—“ Berl. Mag.,”’ vel. ii., p. 76. 
1767. Linneus.—< Sys. Nat.,” ed. xil., vol. i., 2, p. 760. 
1769. Berkenhout.—‘‘ Synops. N.H. Gt. Br.,” vol. i., p. 124. 
1775. Fuessley.—“ Verz. Schweiz. Ins.,” p. 28. - 
1775. Fabricius.—“ Sys. ent.,” p. 469. 
1775. Harris.—‘‘ Eng. Lep.,” p. 7. 
1776. Miller, O. F.—* Zool. Dan.,” p. 113. 
1776 (5). Schiffermiller.—< Verz. Wien.,” p. 163. 
