indebted to the assiduity and liberality of my friend Mr. Raddon 

 for being able to give its history, as well as figures of the larva, and 

 the plant upon which it lives. 



During a long residence in Devonshire, that gentleman visited 

 occasionally the extensive sand-hills at Appledore and Braunton 

 Burrows near Barnstaple, where Euphorbia Paralias grows in great 

 abundance; and from the size and beauty of the caterpillars it 

 would be imagined that they might readily be detected : but in the 

 young state they are not easily discoverable ; and when more ad- 

 vanced, they become so conspicuous that their numbers are reduced 

 by marine birds which feed upon them : — they may however be 

 traced by their soil, and occasionally may be seen far from the spot 

 where they fed, at the extremity of a tall rush. They are full- 

 grown about the middle of September, when they descend into the 

 sand and become chrysalides, forming a loose case of earth around 

 them, from which the moths emerge the beginning of the following 

 June. Sometimes, however, they remain in the pupa state two 

 seasons, as many other Lepidoptera do ; — a wise provision of Na- 

 ture to prevent any accident from destroying the whole brood. The 

 sand-hills where the larvae are found being of great extent must 

 have been collected by the winds and storms to which they are 

 constantly exposed : during the winter the whole soil is frequently 

 removed, so as completely to alter the surface of the country ; a 

 great number of the pupte must consequently be destroyed or buried 

 at a considerable depth below the surface, where probably they lie 

 hid until they are brought to light and life by the influence of the 

 elements. 



6*. D. Elpenor Linn. Faun.Suec. 1089.— Haw. 62. 9. — Don. 4. 122. 



Yellowish olive brown. Antennae white, rosy at their base. Thorax white 

 on the sides, 4 rosy stripes on the back. Abdomen with a rosy line down 

 the back, sides and apex of the same colour, with a black spot on each 

 side at the base. Superior wings striped obliquely with lilac, with a white 

 dot in the centre : inferior rosy, black at the base. 



The caterpillars, which are first green and afterwards brown, feed 

 upon Galium vermn, Epilobiwn hirsutum (PI. 57), Lythrum Sali- 

 caria, and Vitis vinifera ,- they are full fed in August : the moths 

 appear the June following, and are not uncommon in the evening 

 flying about honeysuckles. 



7. D.Porcellus Linn. Yaun. Suec. 1090.— Haw. 63. 10. — D071. 9. 314. 



Small. Olivaceous orange. Antenna) white : a great portion of the head, 

 thorax and abdomen rosy. Superior wings variegated with rose colour at 

 the costa, posterior margin rosy brown : inferior black at the base, with a 

 rosy brown fimbria. 



The caterpillars ai-e found upon the same plants as the last, con- 

 cealing themselves at the base of the stalks: the moths also frequent 

 the same places, but are less common, and sometimes found as early 

 as May. 



Dr. Schwagrichen of Leipsic informs me that in Germany 

 D. Euphorbia; feeds upon Euj)horbia Esula and E. Oi/jmrissias, as 

 well as E. Paralias (Sea Spurge) figured in the plate. 



4 



