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1 March 2013 Interpretation of Wing Pattern Elements in Relation to Bird Predation on Adult Hyalophora (Saturniidae)
Michael M. Collins
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Abstract

A large sample of trapped adult males of Hyalophora euryalus, H. columbia gloveri, and intergrades from a hybrid zone between these taxa were scored for seven categories of wing damage. A total of 6.1% of 471 adults showed wing damage consistent with bird strikes. Among categories of wing damage, a significantly higher frequency of strikes involved the HW discal spot and the apical eye spot. Patterns of wing damage and behavior of adults when threatened were evaluated in the context of formal models of wing markings as anti-predator mechanisms. Discal spots may act to intimidate predators, while apical eye spots may deflect attacks away from the body. Certain markings are highly conserved and concordant with DNA-based saturniid phylogeny.

Michael M. Collins "Interpretation of Wing Pattern Elements in Relation to Bird Predation on Adult Hyalophora (Saturniidae)," The Journal of the Lepidopterists' Society 67(1), 49-50, (1 March 2013). https://doi.org/10.18473/lepi.v67i1.a6
Received: 26 March 2012; Accepted: 3 July 2012; Published: 1 March 2013
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KEYWORDS
anti-predator mechanism
defense mechanism
defensive behavior
discal spot
eye spot
silk moth
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