PTEROPHORUS BERTRAMI. 343 



The pupa is a little over half an inch long, and 

 exactly of the shape of that of P. dichrodactylus as 

 described by Mr. Buckler, though perhaps a little 

 stouter, as it can hardly be called "slender," the 

 word applied by Mr. Buckler to that species. It has 

 " a longish beak in front, projecting at a slight angle 

 downwards from the head, pointed at the tail ; the 

 wing-cases of moderate length, well developed, and 

 the ends of the leg-cases projecting free from the 

 abdomen." The colour is bright pale green, the 

 dorsal line darker green, edged on the thorax with 

 white ; the beak is white above, rust-colour at the 

 sides ; there is also a conspicuous streak of this rust- 

 colour on the hind part of the thorax, and the same 

 colour also appears (but more faintly) on the abdo- 

 minal point, and at the tip of the leg-cases ; the sub- 

 dorsal line is dark green, and the lateral line is white. 



The ventral surface is pale green, with darker green 

 lines, and the wing-cases with whitish rays. 



The first imago emerged on the 24th of July, 

 1885. (George T. Porritt, 12th August, 1885; 

 B.M.M., October, 1885, XXII, 103—105.) 



Pterophorus isodactylus. 



Plate CLXIII, fig. 4. 



The larva, when full-grown, is about three-eighths 

 of an inch in length, rather thick and plump, tapering 

 much just at each end ; the head is small ; the legs are 

 short and placed much under the body ; the skin is 

 smooth, shining and pellucid; it is of a watery, 

 greenish tint, showing a dark greenish dorsal vessel ; 

 the subdorsal stripe is also darker green than the 

 ground colour, and this is bordered above by an opaque 

 whitish stripe which lies beneath the skin, and shows 

 partially through its glossy surface ; another such 

 faint whitish stripe shows through along the side, and 

 below that is another, somewhat inflated, on which are 



