Bui. 95, U. S. Dept. of Agriculture. 



PLATE 



WORK OF A CHALCIDID IN SEEDS OF PACIFIC COAST CONIFERS. 



a, Cross section of sound, mature white fir cone with unaffected seed; 6, yellow pine seed, 

 enlarged, infested by larvae and newly transformed adults of a seed chalcidid; two un- 

 opened seeds show exit holes made by these insects; c, cross sections of two maggoty 

 white fir cones; d, male and female adults of seed chalcidid, larva in opened seed of 

 red fir (Abies magnified) , and exit holes in two other seeds of same. (Original.) 



