304 BRITISH LEPIDOPTERA. 



outer margin towards the anal angle there is a larger group of <j -coloured scales. 

 Antennas, head, thorax and legs of c? type. The abdomen more of a grey 

 coloration, with crippled anal clasps. [This and the following gynandromorphous 

 examples (h—j) bred by Standfuss in Zurich. ] b. Much more preponderantly of ? 

 type (78 mm. in expanse). Both antennae above densely ciliated, with strongly 

 produced pectinations which attain half the length of normal s teeth. Both sides of 

 the sexual aperture with crippled 3 anal clasps. Left hindwing on the dorsal margin 

 above with red-brown $ scales, left forewing below likewise furnished towards the 

 dorsal margin with a larger portion of J scales ; all the wings otherwise ? -coloured. 

 c. ? form, crippled. Both antennas of almost purely <? character. On the 

 upperside of the left forewing rather extended $ coloration — otherwise all the 

 wings above and below ? -coloured. Two crippled, almost perfectly symmetrical, 

 anal clasps are present. [N.B. The anatomical dissection yielded : Bursa copulatrix, 

 receptaculum seminis, as well as oviduct with its eight ovarian tubes, present, 

 the latter however, absolutely empty. On the other hand there is only one 

 cement gland present nearly double the normal size ; the second is entirely 

 wanting.] d. ? type, crippled. Both antennas approaching to £ form. Left 

 forewing in shape and coloration J . All the other wings of entirely ? 

 coloration. Crippled anal clasps present on both sides of the sexual aperture. 

 [N.B. This individual was also dissected ; the oviduct with its eight ovarian 

 tubes is normally developed and contains 22 ova irregularly distributed, partly 

 of normal and partly of very reduced size. Further there are present the bursa 

 copulatrix, the receptaculum seminis and the connecting passage between them 

 both. Instead of two cement glands there are three of them, all three of nearly 

 normal size. It is remarkable that, beside these female organs, the penis sheath 

 and penis are also developed.] e — j. Six more individuals exhibited likewise the 

 phenomenon of gynandromorphism (Standfuss) [///. Zeits.furEnt., hi., pp. 294 — 295]. 

 4. S. hybr. standfussi. — a. General appearance that of a $ ; expanse 86mm. 

 On the upperside, the coloration s throughout with the exception of the costal 

 margin of the left hindwing. On the underside : the right forewing almost entirely 



? -coloured; the right hindwing from the dorsal margin for two-thirds of the wing 

 area likewise ? -coloured, otherwise S -coloured. Both the left fore- and hindwing 



% -coloured only along the costal margin as far as the ocellated spot, the other 

 two-thirds of both wings of $ coloration. Outline of the wings : with the exception 

 of the right, ? -shaped forewing, all the wings of S shape. Antennas, head, thorax 

 and legs male. The abdomen partly grey-haired, with crippled anal clasps. [This 

 and the following eleven gynandromorphous examples of this hybrid [b — /) were 

 also bred by Herr Standfuss in Zurich. ] b. Predominantly ? type (76mm. in 

 expanse). Left antenna above and below — right antenna above only — strongly 

 pectinated and ciliated on about two-thirds of the normal <? scale. On the genital 

 aperture, rudiments of the 3 clasps, left larger, right smaller. The whole of the 

 underside of both pairs of wings, as well as the upperside of both hindwings of 

 purely ? coloration. Upperside, the right forewing from the base to the middle of 

 the dorsal margin with rich male coloration, the left forewing only about the 

 middle of the dorsal margin sparingly cf -scaled, otherwise also ? -coloured. 

 c. Preponderantly ? , 96mm. in expanse. Both antennas below with long, ciliated 

 teeth of two-thirds the length of the $ type. Rudiments of anal clasps and penis 

 present. Coloration above purely ? , the same beneath only on both hindwings 

 below, between the eye-marking and the outer margin, there are rays of $ -coloured 

 scales, d. Of ? type ; 87mm. in expanse. Both antennas almost purely <? in 

 character. Rudiments of anal clasps and penis present. Left forewing of <? , the 

 remaining wings of ? , shape. The whole of the upperside purely ? -coloured. 

 Underside : left forewing on the costa as far as the margin of the eye of ? 

 coloration, the whole of the remaining part <? -coloured. Right hindwing with 

 wedge-shaped male marking between the eyespot and the dorsal margin, but not 

 attaining the latter. There arc besides J -coloured scales on the outer margin below 

 the apex of the right forewing and left hindwing. All the rest of the underside of 



? type. e. Preponderantly ? . Bred by Standfuss. In the collection of His 

 Imperial Highness the Grand Duke Nicholas Mikhailovich, in St. Petersbiug. 

 f. Preponderantly female individual. Bred by Standfuss [In the Zoological 

 Museum of the University of Tubingen]. «'. An individual of similar character. 

 Bred by Standfuss [Passed into the possession of Dr. Kerschensteiner, Ratisbon]. 

 h — /. Five further individuals, likewise bred by Standfuss, showing signs of gynan- 

 dromorphism (Standfuss) [///. Zeits. fur Ent., iii., pp. 21)5 — 296]. 



The Saturnian egg is opaque, possibly a more specialised form 



