Materials for the study of variation; treated with especial regard to discontinuity in the origin of species - Tapa blanda

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 Excerpt: ... similar Variation of the two pairs of wings. Satyrus hyperanthus: four specimens (Fig. 77) shewing Fig. 77. Satyrus hyperanthus. Various conditions of ocelli. II. is the most frequent form. (From Newman's British Butterflies.) different conditions of ocelli in this species from Newman's British Butterflies. A form without ocelli is mentioned by Porritt, Ent., xvi., 1883, p. 188. On one day I have myself taken all the forms shewn in Fig. 77 (except III.) and others in Monk's Wood, so that here no question of seasonal or local difference is necessarily involved. ±±-, Cbionobaa. The North-American species of this genus in general appearance 'somewhat resembling the British Hipparchia semele, the Grayling are of a brown colour having eye-spots on some or all of the wings. According to Strecker the number of eye-spots varies extremely, and the following instances are given. The species norma may have two spots on fore wings and none on hind wings; two on f. w. and one on h. w.; one on f. w. and one on h. w.; one on f. w. and none on h. w.; three on f. w. and two on h. w. Of the species uhleri one of the types has three on f. w. and four on h. w., the other has four on f. w. and five on h. w., the subapical being very small; other examples have only one on f. w. and two or three on h. w. The species chryxus may have one on f. w. and none on h. w.; or two on f. w. and one on h. w. Strecker, Cat. Macrolepid., p. 155. 44(Ja Arge pherusa: a butterfly resembling the British Arge galathea, the Marbled White, has a variety plesaum, in which the eye-spots of hind wing are wanting. Specimen figured in which the left hind wing is a third smaller than the right and lacks the eye-spots. Faqla-tedaldi, Nat. Sicil., I. p. 208, PI. xi. fig. 8. MORPHO. A number of spe...