1. The parasites recovered from the pupal collections of pine-moth in Kashima district, Ibaraki Prefecture during June 12 to July 5, 1961 are shown in Table 2. The most abundant species was Sarcophaga harpax Pandelle and it was recovered from 10 per cent of the field-collected pupae. 2. The number of Sarcophaga harpax found in each host was 1 to 21, and mostly 3 to 8.(Fig. 1) 3. Brachymeria minuta Linne was recovered from the Sarcophaga pupa as the secondary parasite.