66 



THE SAN JOSE OR CHINESE SCALE. 



and often but a single generation annually. The slowness of breeding 

 of the American species is a veiy great bar to its usefulness in the 

 latitude which includes the principal deciduous-fruit interests of the 

 United States. 



These facts were thorol}" demonstrated from the breeding records 

 of the material sent from China and Japan. Several sendings were 

 made by the writer, but unfortunately most of the specimens died in 

 transit or during the first winter. Two individuals, however, sur- 

 vived, and during the first summer, that of 1902, from these two some 

 5,000 or more beetles were secured. The breeding was first carried 



Fig. 12. — Asiatic ladybird {Chilocorus similis), later larval stages, pupa, and adult insect: a, second 

 larval stage; b, cast skin of same; c, full-grown larva; d, method of pupation, the pupa being 

 retained in split larval skin; e, newly emerged adult not yet colored; /, fully colored and perfect 

 adult. All enlarged to the same scale (author's illustration). 



on in cages (PI. VIII), but afterwards the beetles were liberated in the 

 small experimental orchard attached to the insectar}' of the Bureau. 



A good man}" colonies were sent out to different States, both north 

 and south, in the summer of 1902, man}^ more in the summer of 1903, 

 and a few additional colonies in 1901. Many of these colonies were 

 liberated under rather unfavorable conditions, or, in other words, 

 where there were verj^ few infested trees, and the beetles probably 

 became scattered and lost. The best success came with certain colo- 

 nies sent to Georgia, and especialh" the notable case of the colony at 

 Marshall ville. This last was in an orchard containing some 17,000 



