ar. luoo, 



] Dvar: On the Larv/e of Saw-Flies. 31 



Harpiphorus testaceous Xorton. 



There is a published note (Insect Life I, 345) stating that the 

 larva of this species was found on Polygonum and Vitis. However, 

 on consulting the note books of the Department of Agriculture, I find 

 that the \zx\x. refused these plants and it is pretty evident that they 

 had been wandering after having defoliated their bush of Cornus. 

 These particular larvte were not bred, but others, stated in the notes 

 to be "identical" were bred, and, though labelled /(^j/d-rif^tfi- corre- 

 spond with my specimens of varianits. Some preserved larvae bear- 

 ing the same number (Dept. Agri., 3543) are also true varianiis. The 

 true testaceous seems not to have been bred as yet. 



Schizocerus zabriskiei AsJini. 



Leaf miners in Purslane {Portiiletea oleraeea~), Bellport, Long Is- 

 land, New York. 



Stage I. — As in the next stage ; width of head .25 mm. 



Stage II. — Much as in the next stage, the markings faint: head 

 smoky brown ; width .35 mm. 



Stage III. — The same ; width of head .5 mm. 



Stage Il\ — Head rounded, a little higher than wide, smoky black, 

 the region about the mouth pale ; eye black ; antennae rudimentary ; 

 width .65 mm. Thoracic feet short, distinct and spreading, marked 

 with black, visible distinctly from the lower side of the mine. Body 

 colorless or faintly yellowish, the food in alimentary canal green ; 

 two dark spots on venter of thorax. Segments 3-annulate, with small 

 blackish tul^ercles on each annulet ; one on the first, four on the 

 second reaching to the black spiracle, three on the third and a few 

 on the subventral folds. Abdominal feet very small and short on 

 joints 6 to II with also slight lumps that resemble feet on joints 12 

 and 13 anteriorly. Anal plate transverse, dusky black. 



Stage V. — Head colorless, whitish, ocellus black ; width .9 mm. 

 Body all green, no marks, flattened ; skin appearing granular from 

 the concolorous, obsolete tubercles, the subventral ridge even spinu- 

 lose. Thoracic feet pale, the abdominal ones obsolete ; spiracles 

 black ; dorsal vessel dark. 



The larvae mine the leaves of purslane, leaving one leaf when ex- 

 hausted and starting a fresh mine in another. Pupation in the ground. 

 Several brooded. 



