Pygarctia
Grote, 1871
tiger moths
Pygarctia is a of arctiine in the Erebidae, established by Grote in 1871. The genus contains approximately 13 described distributed primarily in North America. At least one species, Pygarctia roseicapitis, has been documented producing acoustic warning signals to deter bat , a termed . of P. roseicapitis are on Euphorbia plants, exhibiting distinctive trenching behavior where they cut leaf before feeding to reduce latex flow.
Pronunciation
How to pronounce Pygarctia: //paɪˈɡɑːrktiə//
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Distribution
North America; recorded from United States and Mexico
Behavior
At least one (Pygarctia roseicapitis) exhibits , producing warning sounds to deter bat . This species also displays reduced evasive compared to other eared , suggesting reliance on acoustic warnings over escape maneuvers.
More Details
Acoustic aposematism
Pygarctia roseicapitis was among the first documented using in natural , not just laboratory settings. The produces sounds that warn echolocating bats of its chemical defenses, representing an evolutionary alternative to visual warning coloration used in systems.
Caterpillar trenching behavior
of P. roseicapitis cut of latex-rich Euphorbia plants before feeding, a that reduces latex flow to leaf portions. This trenching allows multiple feeding bouts on wilted leaves, though frequently abandon plants before full resource utilization.