248 GYMNANCYLA CANELLA. 



sand by the sea-shore at Camber, near Rye, East 

 Sussex." 



They were of various stages of growth, those ap- 

 parently full-grown being about three-quarters of an 

 inch long, rather attenuated when crawling, but of 

 fair proportions when at rest. The head has the 

 lobes rounded, is slightly narrower than the second, 

 and still narrower than the third segment ; the body 

 is cylindrical and of almost uniform width, tapering 

 only a little at the posterior extremity ; the skin is 

 smooth, but not at all glossy, except on the anal 

 segment, whereas the head and the frontal plate are 

 highly polished ; the segmental divisions are well- 

 defined ; there is also a slight transverse depression 

 on each segment, and a puckered ridge along the 

 spiracular region. 



The ground colour of the dorsal area varies from 

 pale pea-green to dark green ; the head is grey, more 

 or less marked with intense black, some of the darker 

 larvae indeed having the cheeks and part of the face 

 perfectly black. The dorsal stripe is clearly defined, 

 either of a darker shade of the ground colour of what- 

 ever shade of green, or in some specimens purplish- 

 brown ; the subdorsal lines are only faintly discernible, 

 greyish ; there are no perceptible spiracular lines ; the 

 usual dots are very minute, black, except those on the 

 third and the twelfth segments, which are larger, and 

 white, encircled with black ; the spiracles also are very 

 minute, brown. The ventral surface is uniformly of a 

 paler shade of the ground colour. 



Another variety, which is evidently much less com- 

 mon than the preceding, has the ground colour dark 

 olive, the dorsal line purple, and between it and the 

 grey subdorsal lines another faint line of a paler 

 purple ; whilst along the spiracular region is a broad 

 irregular stripe, brownish-yellow in the centre, but 

 edged above and below with grey ; this stripe is really 

 composed of a series of blunt wedge-shaped marks 

 laid longitudinally, and the base of each mark adjoin- 



