Abstract
Up to the present, only two species have been recorded as aphidophagous Phycitine in the world. One is Conobathra aphidivora (MEYRICK), and the other is Cryptoblabes aphidivora YOSHIYASU and OHARA. In 1986, we found two aphidophagous pyralid larvae at Shuri, Naha, Okinawa : "Conobathra aphidivora" feeding on the sugar cane woolly aphid Ceratovacuna lanigera (ZEHNTNER) and "Cryptoblabes aphidiwora YOSHIYASU and OHARA" feeding on Pseudoregma bambucicola (TAKAHASHI). The results of a crossing experiment between the "two species" suggested that they are conspecific. The morphological and biological characteristics of "Cryptoblabes aphidivora" were also identical with those of "Conobathra aphidivora". We interpret these results as indicating that "Cryptoblabes aphidivora YOSHIYASU and OHARA" is synonymous with "Conobathra aphidivora (MEYRICK)". A new genus, Dipha YOSHIYASU, is proposed for aphidivora MEYRICK. The species is widely distributed in the Ryukyu Islands and all developmental stages were recognized all the year round.
