CALIFORNIA PHRYGANIDIAN. 567 



eter .85 mm. Color, shining yellowish -white. In two 

 days a circular zone about the depressed apex is brown- 

 ish pink, which in five days after exclusion becomes 

 cherry- red. Just before hatching the whole egg is mot- 

 tled with dark -pinkish. Laid on the lower (rarely up- 

 per) surface of the leaves of ^uercus ag7'ifoIia and of 

 other species of ^iterciis, in patches of from thirty to 

 fifty. 



Larva, jirst stage (see b, plate Ivi) — Head large, 

 rounded, bilobed, the mesal line distinct, bearing a few 

 prominent hairs ; color when excluded from the egg, 

 pearl-gray, soon changing to light brown, shining, width 

 .68 mm. Body cylindrical, with conspicuous setigerous 

 tubercles, arranged as follows: a row on each side of the 

 dorsimeson, composed of two large approximated tuber- 

 cles on each segment, the caudal tubercle of each seg- 

 ment lying slightly laterad of the cephalic one. These 

 dorsal rows bend a little laterad on the second and third 

 segments. Two rows on each side, the upper row con- 

 sisting of large tubercles one on each segment, the lower 

 row of smaller ones two on each segment, the caudal tu- 

 bercle of the lower pair being a little above the cephalic 

 one. Cervical shield, broad and widest at mesal part, 

 brown. Anal shield, distinct, brown. Color of the body 

 ashy at exclusion, changing in four hours to bright yel- 

 lowish green above and ashy below, tubercles brown to 

 black, and there is a narrow, subdorsal, interrupted red- 

 dish line extending whole length of the body; legs con- 

 colorous with venter, and marked with brown blotches. 

 Triangular, brownish blotches occur in mesal line on seg- 

 ments 4, 6, 8 and 11, and may or may not extend across 

 the dorsum of segment. Length (at exclusion from egg^ 

 2.05 mm.; width .26 mm. 



Second stage — Head shining brown, ocelli and mouth 



