ZETTZEKA ^ESCULI. 133 



shrubs in my garden, and next year, on June 18th, I 

 noticed that a small bough of birch, not thicker than 

 my forefinger, had been broken across by the wind, 

 and on closer examination I found a larva of cesculi 

 had driven a gallery along it, and had become a pupa 

 there. I remember noticing the rows of little spikes, 

 which seem well represented in fig. 1, b, and of course 

 are of use to enable the pupa to move to the entrance 

 of its gallery for the exit of the moth. 



In 1886, July 14th, Mr. G. T. Porritt sent me a 

 larva; it was then 25 mm. long, stout, the skin thin, 

 the tubercular dots very large and black, and each 

 bearing a fine bristle, the segments well divided, the 

 head retractile and narrower than segment 2, rounded 

 in outline, in colour shining blackish-brown, but with a 

 pale mark on the summit, bell-shaped, with the broad 

 end in front ; the second segment larger and wider 

 than any other, covered for its whole length with a 

 wide dorsal smooth plate, blackish-brown in colour, 

 shining, armed on its hinder edge with teeth, large in 

 the middle and small on either side, the following skin- 

 fold bearing some small points ; the anal flap covered 

 with a hard, black-brown plate set with some bristles ; 

 the general colour of the skin deep dull yellow, the 

 pale brown spiracles deeply sunk in little pits, the 

 tubercular dot preceding each spiracle very small, all 

 the others large; the anal prolegs scarcely developed, 

 just a line of hooks to mark each of them. Unfor- 

 tunately this larva died, having, I suppose, been turned 

 out of its mine, and not possessing energy enough to 

 begin a fresh one. (J. H., 2, 12, 86.) 



PHRAGMAT^CIA ARUNDIN1S. 



Plate XXXI, fig. 2 (see ante p. 58). 



Mr. Buckler figured the larva May 22nd, 1863, in 

 stems of Arundo phragmites. It was in 1882 that he 



