19 



at the apex, and always greener in colour. From Appendix to " Buckler's 

 Larvae." 



The caterpillar is much like that of rapa, but can be known from it by 

 its lighter green, by the absence of a yellow dorsal line, by the single yellow 

 spot in each segment enclosing the spiracle, and by the absence of black dots 

 below the spiracular line. It feeds on various species of the cress kind, in 

 June and in September. 



The chrysalis is either of a very pale pink buff, or of a light green colour. 



PIERIS DAPLIDICE. 



Bath White. 



DAPLIDICE, Linn. Daplidice, one of the twenty-nine daughters of Danaus, 

 King of Argos, who killed their husbands in obedience to their father's 

 orders. 



This, one of the rarest of our British butterflies, varies in the expansion of 

 its wings from an inch and a half to a couple of inches. The wings are 

 white, with a shade of cream colour. The fore-wings, which are unusually 

 pointed, have a large black spot (very large in the female), a little above the 

 centre ; and a black band at the tip, in which are situated some white spots. 

 The underside of the hind-wings are irregularly mottled with green and 

 white. 



The female differs from the male in having a black spot near the inner 

 margin of the fore-wings, and also by the hind-wings having some blackish 

 markings. 



The egg is of a bright pinkish red, and in shape very much like a cupless 

 acorn. 



The caterpillar is dull blue, striped with yellow and dotted with black, and 

 has a green head. It feeds on mignonette and weld in June, and also in 

 September. 



The chrysalis is dark grey, with numerous black dots. 



The late Mr. Buckler, proved by experimenting on the caterpillar, that it 

 is a species quite unsuited to our climate, and belongs to a warmer country. 



The Chequered or Bath White is common over Central and Southern 

 Europe, especially 'along the shores of the Mediterranean, as well as on the 

 opposite coasts of Asia and Africa. It is mostly found in dry and sandy 

 situations, and I have seen it flying plentifully, in company with other 

 Whites, over the slopes of the Metropolis at Athens. 



The first person to record it as a British species was Petiver, who in his 



