Dr. Steinmann Henrik szerk.: Folia Entomologica Hungarica 22/1-11. (Budapest, 1969)

7. ábra On the Phenology, Gradology, and Distribution of Nyctegretis achatinella HBN. (Lep., Phycitidae) in Hungary, in the vears 1965-1967 Bv Dr. Z. VlészároiResearoh Institut for Plant Protection. Budapest The Agate Knot-horn (

Nyctegretis achatinella HBN.) is a widely distributed Phycitid moth in Hungary; its larve is polyphagous, and since it is recorded as a pest of lucerne and clover in the Soviet Union, it were justified te keep an aye on it as a potential pest also in Hungary. With the aid of the data gained from the records of the nationwide light trap network, the author has examined its phenology, gradology and frequency conditions in 1965-1967- In Hungary, the moth appears in two well separable broods (Pigs. 4-6). The popu-