Dryobius sexnotatus
Linsley, 1957
Six-banded Longhorn Beetle
Dryobius sexnotatus is a of longhorned beetle (Cerambycidae) and the sole member of its monospecific . It is to North America. The species has been documented as a for phoretic pseudoscorpions, which attach to beetles for .
Pronunciation
How to pronounce Dryobius sexnotatus: //draɪˈoʊbiəs sɛksnoʊˈteɪtəs//
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Images
Distribution
North America. Documented from Canada (CA) and the United States (US) based on GBIF distribution records.
Behavior
have been observed carrying phoretic pseudoscorpions attached to their legs. This represents a documented case of , in which the pseudoscorpion ceases feeding and development while attached to the , presumably to achieve to new such as dead trees suitable for .
Ecological Role
Serves as a for pseudoscorpions. The 's association with dead wood provides a mechanism for these arachnids to reach new substrate patches.
More Details
Phoretic associations
A pseudoscorpion was photographed attached to the mesothoracic leg of an D. sexnotatus in Missouri. This is one of several documented cases of pseudoscorpions using longhorned beetles as phoretic . Alternative hypotheses for such attachments include accidental boarding, obligate , and phagophily ( on other associates), though the explanation is considered most probable given the of pseudoscorpions that inhabit dead wood.