Sclerotised spines in the female bursa associated with male’s spermatophore production in cantharidin-producing false blister beetles

Hashimoto, Kosei; Sugawara, Hirotaka; Hayashi, Fumio

doi:10.1016/j.jinsphys.2016.08.001

Cited by 6 publications

(4 citation statements)

References 35 publications

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“…46,48,49 In oedemerid beetles (genera Oedemera and Nacerdes) on the contrary, adults of both sexes have the ability to synthesize cantharidin but those transferred to the eggs are mainly provided by females and little or no transfer from male to female was observed. 43,44,48,50 In species of false blister beetles, however, females have spines in their reproductive system that enhance the use of cantharidin provided by males. 50 Other beetles called "canthariphilous" that lack the capacity to synthesize cantharidin, have evolved resistance to the toxin and are attracted to cantharidin-containing beetles (oen dead specimens), sequester the toxin from them.…”

Section: Description Of Egg Toxinsmentioning

confidence: 99%

“…43,44,48,50 In species of false blister beetles, however, females have spines in their reproductive system that enhance the use of cantharidin provided by males. 50 Other beetles called "canthariphilous" that lack the capacity to synthesize cantharidin, have evolved resistance to the toxin and are attracted to cantharidin-containing beetles (oen dead specimens), sequester the toxin from them. 51 They only extract the defensive chemical without obtaining any other compound (e.g., nutrients), 47,52 a behavior dened as "pharmacophagy".…”

Section: Description Of Egg Toxinsmentioning

confidence: 99%

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Egg toxic compounds in the animal kingdom. A comprehensive review

2022

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Section: Description Of Egg Toxinsmentioning

confidence: 99%

Section: Description Of Egg Toxinsmentioning

confidence: 99%

Egg toxic compounds in the animal kingdom. A comprehensive review

2022

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“…; Blum ; Dettner ; Hashimoto et al . ). However, cantharidin also functions by attracting other groups of arthropods and forming a peculiar community, the so‐called “cantharidin world,” in which the members interact inter‐ and intra‐specifically using this chemical (reviewed by Hashimoto & Hayashi ).…”

Section: Introductionmentioning

confidence: 97%

Cantharidin world in air: Spatiotemporal distributions of flying canthariphilous insects in the forest interior

Horiuchi

Hashimoto

Hayashi

2018

Entomological Science

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The natural community in which the members interact using a toxic terpenoid cantharidin is named the “cantharidin world.” In previous studies, however, the members of this world have been surveyed only on the forest floor by setting pitfall traps with cantharidin as an attractant. In this study, we set cantharidin traps at various heights above the forest floor to investigate the structure and functional diversity of the canthariphilous flying insect community in the forest above‐ground space. A total of 3,168 arthropods were collected by the traps; among them, six species were more attracted to cantharidin than to control traps. Pseudopyrochroa brevitarsis and P. laticollis (Colecoptera: Pyrochroidae) both appeared for a short time during spring, but the latter species tended to use a lower layer of the forest. Clavicollis fugiens (Coleoptera: Anthicidae) also appeared in spring and flew near the ground. In these beetles, the attracted individuals were mostly males; they may use the obtained cantharidin for nuptial gifts to the female. Atrichopogon femoralis, A. insularis and Atrichopogon sp. (Diptera: Ceratopogonidae) were collected widely in the forest above‐ground space. These midges were almost females, probably because only females of these insects use chemical cues, including cantharidin, for searching for arthropods from which to suck hemolymph.

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“…This toxic terpene acts as a strong feeding deterrent against potential predators and parasites of CTD producers in all phases of their development ( Carrel and Eisner 1974 , Smedley et al 1996 , Dettner 1997 , Carrel 1999 , Whitman et al 2019 ). It is also used as a nuptial gift in some species, although such function seems negligible, at least in some Oedemeridae ( Holz et al 1994 , Nikbakhtzadeh et al 2007 , Hashimoto et al 2016 ). Despite its renowned high toxicity ( Schmitz 1989 , Li and Casida 1992 ), popular pharmacology of different ancient cultures has traditionally used CTD for many purposes for more than two millennia ( Bologna 1991 ), and because of its antitumoral properties, scientific interest in CTD has been renewed in the last decades ( Ren and Kinghorn 2021 ).…”

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confidence: 99%

New Evidence of Canthariphily:Tilloidea transversalis(Coleoptera: Cleridae) Sequestering Cantharidin FromLydus trimaculatus(Coleoptera: Meloidae)

Molfini

Stefanuto

Gisondi

et al. 2022

Journal of Insect Science

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Cantharidin (CTD) is a defensive compound autogenously and exclusively produced by two phylogenetically related beetle families: Meloidae and Oedemeridae. Although this molecule usually acts as a strong deterrent against potential predators and parasites, some arthropod species, collectively named ‘canthariphilous species’, are attracted to CTD. Some species can sequester CTD from the CTD-producing species, using it as a chemical defense against enemies. The present paper focuses on the first-ever description of canthariphilous interactions between a checkered beetle species (Coleoptera: Cleridae) and a CTD -producing species. Field observations revealed individuals of the phytophagous beetle Tilloidea transversalis (Charpentier, 1825) (Coleoptera: Cleridae) biting individuals of the blister beetle Lydus trimaculatus (Fabricius, 1775) (Coleoptera: Meloidae). Laboratory behavioral experiments followed to verify if this peculiar behavior of T. transversalis also occurs on other co-occurring species. Moreover, chemical analyses were performed to assess whether T. transversalis can sequester CTD. Our results show that T. transversalis only attacks CTD-producing species. However, while chemical analyses prove that T. transversalis can sequester CTD from the hemolymph of L. trimaculatus, some clues (based on a CTD-baited traps sampling) suggest that this beetle, contrarily to other canthariphilous species, does not appear to show a high attraction to pure synthetic CTD. Thus, other unknown signals, alone or in combination with CTD, could be implicated in triggering the canthariphilous behaviors of T. transversalis.

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Sclerotised spines in the female bursa associated with male’s spermatophore production in cantharidin-producing false blister beetles

Cited by 6 publications

References 35 publications

Egg toxic compounds in the animal kingdom. A comprehensive review

Egg toxic compounds in the animal kingdom. A comprehensive review

Cantharidin world in air: Spatiotemporal distributions of flying canthariphilous insects in the forest interior

New Evidence of Canthariphily:Tilloidea transversalis(Coleoptera: Cleridae) Sequestering Cantharidin FromLydus trimaculatus(Coleoptera: Meloidae)

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