CHRYSOPHANUS DISPAR. 417 



hindwings, being spotted very similarly to those of the blue butterflies. 

 The 2 is more square- winged than the $ . Scudder. says that " the 

 American " species is double-brooded, and probably winters in the 

 egg-stage. The two commoner PahTearctic species, Chrysophanus 

 hippothoe and C. dispar, hybernate in the larval stages. Both species 

 are usually single-brooded in central and northern Europe, although, 

 occasionally, partial double- broods occur in the warmer parts of their 

 distribution. 



In our account of the tribe, we omitted (antea, p. 326) our notes of 

 the gynandromorphism recorded within its limits. These we now add. 

 They are as follows : 



Heodes vikgauee^e, L. — a. Complete gynandromorph. Right hand side d , 

 left $ . Captured near Magdeburg, in 1893 (Riihl, Pal. Gross- Schmett., p. 741). 



/3. Halved. Right hand side J , 16mm. ; left 2 , 14mm. Captured near 

 Berlin (Wiskott, Eep.-Z witter, etc., p. 10). 



y. Right side 3 , left side ? ; offered by Ribbe in his sale Catalogue, no. 14 

 (Schultz, Bed. Ent. Zeits., xlix., p. 79). 



Chuysophanus hippothoe var. eukybia, Ochs. — Incomplete. Left wings, 

 also right forewing, ? ; right hindwmg, by colour and marking, with preponderance 

 of j characters. Underside ? . Form of abdomen ? . Captured by Wiskott at 

 Saas Fee (Wiskott, Lep.-Z witter, etc., p. 11). 



Loweia alciphron, Linn. — Complete gynandromorph, distinctly divided. 

 Left side d , right side ? . Caught by Treue, near Strassberg, in 1895. In the 

 " Thiele Coll.," Berlin (Schultz, ILlus. Woch. filr Ent., ii., p. 364). 



Loweia amphidamas, Esp. — a. Left side d , right side ? . Ordinary size, 

 without partition line on body, and no difference of the antenme. The difference 

 in the wings on the two sides most pronounced, the J side with the normal blue 

 gloss, the $ side entirely without. The forewing of the right side hardly perceptibly 

 longer than the left. Underside without marked difference. In Berlin Museum 

 Coll. (Klug, Jahrb., 1834, p. 256). 



f3. Right side g , left side 2 . Extracted from pupa found near Leipzig, 1893 

 (Riihl, Fal. Gross-Schmett., p. 220). 



y. Equally divided. Right side completely d , left completely $ . Recorded 

 (in litt.) by Lorez of Zurich (Schultz, ILlus. Woch. fur Ent., i., p. 321). 



8. Completely halved. Right side, wings and antenna, J ; left side, ? . Body 

 inclining to ? inform. Genitalia with traces of both sexes. Captured 1896. In 

 coll. Hartmann, of Rerchenbach (Schultz. Illus. Woch. filr Ent., ii., p. 364). 



e. Left side ? , 12mm. ; right side S , 11mm. The s side conspicuous by its 

 blue tint. No difference in antennse. Body $ in form. Reared in Saxony. In 

 Wiskott coll. (Wiskott, Lep.-Z witter, etc., p. 11). 



f-77. Two complete gynandromorphs. (f) With the left side $ , the right side 

 ? . (77) With the right side d , the left side ? . In both specimens the difference 

 of sex is conspicuously distinct in the wings, the g side, in both cases, having the 

 red colour very restricted, and the blue gloss spread over the wing, whilst the ? side 

 has the red very much more developed, and there is no trace of the blue gloss. 

 The c? side has the wings shorter and narrower than those of the ? side. Both 

 probably from near Leipzig. In the " Hoffmann coll.," Cologne (Schultz, Illus. 

 Zeits. fiir Ent., iii., p. 102). 



i. Gynandromorph. Left wings ? (of the typical form reared from winter 

 pupa?), right wings J . Wing expanse 25mm., the ? forewing a trifle larger than 

 the J forewing. The abdomen is fuller and stouter on the left, than on the right, 

 side. The end of the 9th abdominal segment on the right side, with a distinct 

 lower flap ; the end of the 8th abdominal segment on the left side, with longer 

 grey-black hairs, conspicuously indicating it as the last segment on that side, so 

 that the body appears as if cut off unevenly. Reared by Standfuss, at Zurich, 

 February 20th, 1898, from a pupa received from Leipzig (Schultz, Illus. Zeits. filr 

 Entom., iii., p. 102). 



k Gynandromorph. Mentioned without description (Ent. Zeits. Guben, xi., 

 p. 186). 



Chkysophanus dispar, Haworth. 



Synonymy. — Species: Dispar, Haw., " Lep. Brit.," p. 40 (1803); Leach, 

 "Edin. Encycl.," ix., pt. 1, p. 129 (1815) ; Sam., "Ent. Ccmp.," p. 241 (1819) ; 



