SCIENCE- GOSSIP, 



39 



BUTTERFLIES OF THE PALAEARCTIC REGION. 



By Henry Charles Lang, M.D., M.E.C.S., L.R.C.P. Lond. 



( Continued from page IV.) 



13. P. melste Men. Cat. Mus. Petr. Lep. ii. 

 p. 113. 1857. 



42—58 nun. 



Wings white, no dusky shading at base. 



F.w. with six black spots extending from apex 

 along ou. marg., often coalescent. A triangular 

 spot between second and third nervules, h.w. with 

 a faint costal spot; extremities of nervules slightly 

 marked black on ou. marg., $ much more strongly 

 marked, similar to P. na2)i ? . Neuration marked 



with black. U.S. f.w. as above, but with fainter 

 marking's. H.w. very pale yellowish-white without 

 markings, the neuration only faintly dusky. 



Hab. Various localities in the Amur, Corea, 

 Japan. VII— VIII. 



a. var. reris Stgr. The spring form. Has the 

 neuration of the u.s. h.w. broadly marked with 

 black (E. H.). 



HAB. Amur (Ask. Wlad ) V. 



14. P. krueperi Stgr. Wien. Ento. Mon. iv. 19 

 Lg. B.E. p. 29. pi. VI. 3. 



44 — 47 mm. 



Wings white, very slightly shaded at base. F.w. 

 tipped with black and with a row of four or five 

 lozenge-shaped spots along ou. marg.; internal to 

 these is a triangular spot with its base on the 

 costa ; and below this, between veins 3 and 4, a 

 somewhat reniform black spot. H.w. with basal 

 and central shading as the result of the markings 

 of the u.s. showing through ; costa with a triangular 

 black spot. U.S. f.w. white, slightly greenish- 

 yellow at base and apex, costal spot of the same 

 colour, the black spot as above. H.w. greenish- 

 yellow, the outer third lighter in colour. The 

 markings of $ are more intense than in $ . 



Hab. Mountains in Greece, Asia Minor, Trans- 

 caucasia. VI. 



(1) This series of articles on Butterflies of the Palnearotic 

 Kegion commenced in SCIENCE-GOSSIP, No. 61, June 1899. 



a. var. vernalis Stgr. Hor. 1870, p. 34. Largei 

 and lighter, than the type. U.s. h.w. marked with 



green toward base. Spring seasonal dimorphic 

 form. Hie— IV. 



b. v&T.prisca Stgr. This is the eastern form "I 

 the species, occurring in Turkestan, Alai, N. Persia. 

 It is larger than the type. U.s. h.w. much whip r 

 and with greenish markings. 



e. var. rerna Grum. The spring form of var. 

 prisca, corresponding to var. vernalis. 



15. P. canidia Sparrm. Amoen. Acad. vii. 

 p. 504. 1768. 



45 — 53 mm. 



Wings white. F.w. apex and upper half of 

 ou. marg. marked with black. With two black- 

 spots. H.w. with a black spot on costa, and with a 

 marginal row of four or five black spots. 9 marked 

 as in (?, but all the spots are much more intense 

 and the bases are dusky. 



Hab. Turkestan, Cent. Asia, North India, and 

 China. V— VI. 



a. var. aestiva Stgr. in litt. The summer form. 

 Whiter, the spots not so intensely marked. 



b. var. 2>alaearctica Stgr. 35 — 45 mm. A small 

 light form, in which all the markin°s are much 



Pieris cheiranthi. 



fainter than in type. H.w. without marginal black 

 spots. Hardly at first sight to be distinguished 

 from P. rapae. The shape of the apical marking-. 

 the less pointed outline of f.w., and the larg< c 

 and rounder spots of the u.s. will be found to be 

 sufficient points of separation. Hab. Turkestan. 

 (? a smaller form of var. aestiva.") 



16. P. tadjika, Gr.-Gr. 



43-46 mm. 



This species very much resembles the var. 



