CALIFORNIA PHRYGANIDIAN. 569 



proximal segment of antennee whitish, distal parts of re- 

 maining segments black; width of head 2.57 mm. Body 

 cylindrical, nth and 12th segments humped, smooth, 

 shining, tubercles and hairs not noticeable; general color 

 light yellow. An alternative body color is black above 

 and on sides, and ashy-gray on venter. The majority 

 of the fall brood were yellow; the majority of the spring 

 brood black. Cervical shield prominent, black; anal 

 shield small, black. Thoracic legs black. The reddish 

 median dorsal line widens or becomes a large blotch on 

 the 8th segment. There is a conspicuous transverse 

 blotch on the humped nth segment. Smaller blotches 

 occur also sometimes on the 4th and 6th segments. There 

 is a narrow, uneven, black line on each side of the me- 

 dian dorsal line parallel with it and continuous from ist 

 to 1 2th segments. Laterad of these narrow lines, there 

 is a conspicuous broad black subdorsal band composed 

 of several contiguous narrow lines, the composing lines 

 frequently blending. On segments 6-11 just above the 

 bases of the prolegs, which are yellowish white with red- 

 dish markings, there are two short sinuous reddish lines, 

 the lower one of each pair being the broader and more 

 distinct and the space between them being pearly-white 

 in color. Connecting the upper one of these two lines 

 with the subdorsal band there is on segments 6-9 a short 

 sinuous vertical reddish line. When the general body 

 color of the larva is black the spaces between the narrow 

 dorsal lines remain yellowish appearing as four narrow 

 parallel dorsal lines running the whole length of the body. 

 Length 23—27 mm.; width 3 mm. 



At end of this stage, the larvae let themselves down 

 from the tree to the ground by a silken thread, and then 

 crawl up on the side of an adjacent building or upon a 

 fence, or upon the trunk of the tree, or they crawl down 



2d See., Vol. V. (37 ) September 10, 1895 



