PLATE VI. 
No. 1.—The Marbled White Butterfly (rye Gala- No. 7.—The Under side of the Speckled Wood But- 
_ thea). terfly. 
No, 2.—The Underside of the Marbled White But- No. 8.—The Caterpillar of the Speckled Wood But- 
terfly. terfly. 
No. 3.—A Variety of the Marbled White Butterfly. No. 9.—The Chrysalis of the Speckled Wood But- 
No. 4.—The Caterpillar of the Marbled White But- terfly. 
terfly. No. 10.—The Wall Butterfly (Lasiommata Megera). 
No. 5.—The Chrysalis of the Marbled White But- No. 11.—The Female of the Wall Butterfly. 
terfly. No, 12.—The Under side of the Wall Butterfly. 
No. 6.—The Speckled Wood Butterfly (Lasiommata No, 13.—The Caterpillar of the Wall Butterfly. 
yeria). No. 14.—The Chrysalis of the Wall Butterfly. 
THE second Family of Butterflies is that of the Nymphualide, which is distinguished by 
having only four legs fitted for walking, the front pair being always, more or less, of merely ru- 
dimental character. The Caterpillars are considerably attenuated towards each extremity, and 
have either a fork at the tail or two horn-like appendages at the head. The Chrysalis is sus- 
pended by the tail only, having no belt of silk round the body. 
The first Sub-Family of the Nymphalide, as that of the Satyridi, contains the six genera, 
Arge, Lasionmata, Hipparchia, Enodia, Erebia, and Cenonympha. 
The genus Arye is distinguished, like all those of this sub-family, by the rudimental charac- 
ter of the front pair of legs, and also by the dentation, or rather scallop-like undulation of the 
hind wings. The larve have the body slightly thickened in the middle, and attenuated at each 
extremity, the tail being forked. The Chrysalis is without spines or tubercles, and is suspended 
by the tail. 
Arge Gulathea (the Marbled White, No. 1) is very local, but abundant enough in many 
favourable situations. The under side (No. 2) is paler than the upper, and rather differently 
marked. The female is generally somewhat larger than the male, and the ground colour of the 
wings is yellower. The variety (No. 3) is one of the most unusual ; there are other varieties of 
more common occurrence, among them, one in which the dark marks, instead of being black, 
are of a fine light brown. There is a fine specimen of this variety in the British Museum. In 
some varieties the marks of the underside are nearly absent. The Caterpillar feeds in prefer- 
ence on Timothy-grass, but is also found in other grasses growing in woody situations. It ap- 
pears in June and July, flying in damp open places in woods, in a wavering and lazy manner, 
upon which habit it is possible that Esper founded his generic name, drge, from Argos (Agyos), 
indolent. It is taken plentifully near Blandford, Brighton, Kingsbury, &c., &c., and less abun- 
dantly in many other places, but has not yet occurred in any part of Scotland. 
The genus Lasiommate is distinguished from the preceding and other nearly related genera 
by the peculiar character of the eyes, which are covered with short hairs, a character upon which 
Mr. Westwood founded the present generic name from Jasios (A«o10s), hairy, and oma (omc), 
aneye. The front pair of legs are much more conspicuous than in Arye, and are of equal 
