Subspecies
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Some
authors regard Phytoecia julii as a subspecies of Phytoecia
nigricornis. However, both taxa
appear to be largely sympatric, which argues
against subspecies status and suggests that they are separate species.
This is also supported by morphological and ecological differences
between the taxa (see below).
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Synonyms
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Phytoecia julii (Mulsant, 1863)
Phytoecia nigricornis julii (Mulsant, 1863)
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Identification
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Very
similar to Phytoecia nigricornis, but body broader. While the upper
side of Phytoecia nigricornis has gray or whitish hairs, Phytoecia julii
is covered with yellow or yellow-brown hairs.
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Distribution
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No information has been entered yet.
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Biology
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Reported to feed exclusively on Tanatecum vulgare, whereas Phytoecia nigricornis feeds on different Solidago species (Harde 1966).
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