The raspberry beetle (Byturus tomentosus) is a species of beetle in the fruitworm family Byturidae. It is a major pest that is widespread in north-central Europe, affecting raspberry, blackberry and loganberry plants.
This species is related to the raspberry fruitworm (B. urbanus) which is native to North America.
An aggregate fruit or etaerio (/ɛˈtɪərioʊ/) is a fruit that develops from the merger of several ovaries that were separated in a single flower. In contrast, a simple fruit develops from one ovary, and a multiple fruit develops from multiple flowers. In languages other than English, the meanings of "aggregate" and "multiple" fruit are reversed, so that "aggregate" fruits merge several flowers. The differences in meaning are due to a reversal in the terminology by John Lindley, which has been followed by most English-language authors.
Not all flowers with multiple ovaries form aggregate fruit; the ovaries of some flowers do not become tightly joined to make a larger fruit. As a result, many fruits form which are commonly mistaken to be of the aggregate variety. Aggregate fruits may also be accessory fruits, in which parts of the flower other than the ovary become fleshy and form part of the fruit.