JAPANESE SPECIES OF PERNICIOUS SCALE. 173 

 LIST OF REFERENCES. 



1. Insect Life— No. 5, Vol. VI. 1894. 



2. The San José Scale — Bulletin No. 3. new series U. S. Department 



of Agriculture 189G. 



3. Proceedings of the Eleventh Annual Meeting of the Association of 



Economic Entomology — Bulletin No. 20, new series, 1899. 



4. The San José Scale — Technical series No. 6, U. S. Department of 



Agriculture, 1897. 



5. L. 0. Howard — Kevision of the Aphelininae of North America, — 



Technical series No. 1. U. S. Department of Agriculture, 189.3. 



EXPLANATION OF PLATE. 



Japanese species allied to the pernicious scale. 

 Female scale ~ 

 Female insect A, oc. 1. C. Z. 

 Antennae of Female insects D. oc 4. C. Z. 

 Caudal appendages on the pygidium. Horn. Im. oc. 4 C. Z. 

 Male scale ~ 



Male insect ; Fig. 6, a. Ventral surface of head ; Fig. 6, b. Hind 

 wing. B. oc. 1. C. Z. 



Newly hatched larva D. oc. 1. C. Z. ; Fig. 7, a. Antennae ; Fig. 

 7, b. Leg ; Fig. 7, c. Caudal appendages. Highly mag. 



Parasitic chalcis fly. Female. Dorsal view ; Fig. 8, a. ditto 

 Side view ; Fig. 8, b. Fore and hind wings. A, oc. I. C. Z. 

 Scales perforated by chalcis fly. aa. oc. 1. C. Z. 



Fig. 1. 



Fig. 2. 



Fig. 3. 



Fig. 4. 



Fig. 5. 



Fig. 6. 



Fig. 7. 



Fig. 8. 



Fig. 9. 



