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| Body length: | 10 - 20 mm |
| Life cycle: | 2 - 3 years |
| Adults in: | May - July |
| Host plant: | polyphagous on deciduous trees |
| Distribution: | Azerbaidjan, North Iran |
This very rare beetle was reared from a larva found in pupal cell built in a substrate present
inside a living hollow beech tree. The substrate was a 1-5 cm thick layer of a dead and extremely
tenacious red-brown wood in close contact to the sound and very compact heart wood. Such substrate
is created in hollow living deciduous trees. The substrate preferences of this species are very similar to
Stictoleptura erythroptera (Hagenbach, 1822).
Larvae of Paraclytus raddei also were collected in recently dead trees but the above described
substrate was always present. Together with Paraclytus raddei, larvae of
Paraclytus reitteri (Ganglbauer, 1881) and
Anaglyptus ganglbaueri Reitter, 1886 were collected. After the death of the
host larvae of these species frequently penetrate into the neighbouring tissues.
More rarely larvae and dead adults of Paraclytus raddei were collected in dead but very compact and
moisture-poor wood of trunks and stumps of Fagus orientalis. The larval substrate always showed
characteristic fungal infestation. However, we believe that this sort of substrate is much more frequently
infested by Paraclytus reitteri. Anaglyptus spp. have never been observed in this sort of
substrate.
All the above mentioned Paraclytus and Anaglyptus species pupate in late autumn and adults
overwinter in the pupal cells. The adults emerge very early in the following spring. In contrast to
Paraclytus reitteri, this species, Paraclytus raddei, does not visit flowers and consequently
it is being recorded much less frequently.
The depicted beetles were collected in Rudbar (N Iran).
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