
Sirex is a genus of wasps in the family Siricidae, the horntails or wood wasps. They inject eggs with fungal endosymbionts into wood. The fungus is contained in a mycangium which nourishes it with secretions, and in turn it digests wood for the wasp larva. The genus includes economically important pests; S. noctilio, known simply as the `Sirex wo....
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http://en.wikipedia.org/wiki/Sirex

Sirex is a genus of Horntail (Siricidea). Sirex juvencus is distributed throughout a large part of Europe, North Africa, and temperate Asia, and the British Isles and has been introduced into Australia. Sirex juvencus is found in coniferous woodlands, typically pine where the adults fly in clearings on sunny days between June and August and sometim...
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http://www.probertencyclopaedia.com/browse/BSA.HTM
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