Spur- und Alarmstoffe bei der Gefleckten BrutwanzeElasmucha grisea Trail and Alarm Pheromones inElasmucha Grisea (Heteroptera: Acanthosomidæ)

Maschwitz, U.; Gutmann, Ch.

doi:10.1007/bf02223504

Cited by 21 publications

(4 citation statements)

References 18 publications

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“…O comportamento subsocial, que se caracteriza pelo cuidado que a fêmea e/ou macho exerce sobre a prole, protegendo-a contra inimigos naturais ou dessecação, já foi observado em muitas espécies de insetos, distribuídas em 11 ordens. A proteção tem início no momento da oviposição e pode estender-se até o quarto ou quinto instar, dependendo da espécie (Callan 1944a,b, Wilson 1971, Eberhard 1975, Maschwitz & Gutmann 1979, Eickwort 1981, Tallamy & Denno 1981, Tallamy 1984, Mappes et al 1995, Tsukamoto et al 1995.…”

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Eficiência do Cuidado Maternal de Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae) Contra Inimigos Naturais do Estágio de Ovo

Santos¹,

Albuquerque²

2001

Neotrop. Entomol.

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Efficiency of the Maternal Care of Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae) Against Natural Enemies of the Egg Stage ABSTRACT-This study was carried out on trees of the host plant Hibiscus pernambucensis Arruda (Malvaceae), to evaluate the potencial benefits gained from maternal care in Antiteuchus sepulcralis (Fabricius). Three kinds of sleeve cages were used: with no access to natural enemies (=control); with access only to parasitoids, and with access to all natural enemies (predators and parasitoids). A fourth treatment consisted of complete exposure, with no cage. For all treatments, there was a condition in which the egg mass was protected by the mother and one in which the mother was removed. This experiment was repeated 15 times on different dates. Egg masses were also collected in the field to assess the parasitism rates under natural conditions. The predation rate in unprotected egg masses was 100% in less than 24h, whereas no egg was fed upon when the mother was present. Parasitism rates in the sleeve cage treatments, caused exclusively by Phanurospis semiflaviventris Girault (Hymenoptera: Scelionidae), were 41.6% and 69.5% in egg masses protected and not protected by the mother, respectively. Under natural conditions, parasitism rates were 66.4%, 20.1%, and 62.2% in the periods of December/96-March/97, August-October/97, and November/97-February/98, respectively. Eggs located on the outside edge of the egg mass experienced higher levels of parasitism than the internal ones. These results show that the female defense is highly effective against predators, but not so effective against the parasitoid P. semiflaviventris. The adaptive value of the maternal care in A. sepulcralis (trade-off between benefits and costs) as a strategy for offspring survival is discussed.

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Eficiência do Cuidado Maternal de Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae) Contra Inimigos Naturais do Estágio de Ovo

Santos¹,

Albuquerque²

2001

Neotrop. Entomol.

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“…The secretion of her DAG probably combines several functions, e.g. olfactory repellents and attractants and an alarm pheromone effect in larvae as in E. grisea (Maschwitz & Gutmann, 1979;Evans et al, 1990;Staddon, 1990;Aldrich et al, 1995). Presumably, the DAG secretion of females providing maternal care, as Acanthosomatidae do, can also have an alarm effect for young larvae that is in addition to the repellent effect on an intruder.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of certain cuticular structures confirms functionality of dorsal abdominal scent glands in Acanthosomatidae (Heteroptera: Pentatomoidea)

Vilímová

Kutalová

2011

Bull. Entomol. Res.

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Elasmucha ferrugata (Fabricius, 1787) (Heteroptera: Acanthosomatidae) provides maternal care of eggs and larvae. Adults of both sexes have functional anterior dorsal abdominal scent glands (DAGs). Study of all internal and external cuticular structures of DAGs revealed that no DAGs are fully functional in the 1st larval instar, and very probably they are only slightly functional in the 2nd instar. Median and posterior DAGs are undoubtedly not functional in adults. There exists sexual dimorphism in the number of multicellular glandular units in anterior glands in adults. The occurrence of cuticular ductules of these units proves these to be functional glands. This is best considered in combination with the findings of a well-developed evaporatorium. Developed cuticular intima of the gland reservoir and/or the nearly closed ostiole or ostiolar scar bears no information about the functionality of the gland.

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“…Hitherto, the alarm pheromone of hemipterans has been restricted to (E)-2-hexenal, which has been reported as the active component for Dysdercus in termedius, 2) Cimex lectularius (along with (E)-2-octenal),3) Eurydema rugosa, E. pulchra, and Nezara viridula,4) and Elasmucha grisea. 5 ) A considerable amount of this semiochemical, however, was required to display dispersive behavior. On the other hand, (E)-2-hexenyl hexanoate has been previously identified from females of a capsid bug, Blepharidopterus angulatus, 6) although no biological activity was found.…”

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confidence: 99%

(E)-2-Hexenyl Hexanoate, the Alarm Pheromone of the Bean BugRiptortus clavatus(Heteroptera: Alydidae)

Leal

Kadosawa

1992

Bioscience, Biotechnology, and Biochemistry

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Spur- und Alarmstoffe bei der Gefleckten BrutwanzeElasmucha grisea Trail and Alarm Pheromones inElasmucha Grisea (Heteroptera: Acanthosomidæ)

Cited by 21 publications

References 18 publications

Eficiência do Cuidado Maternal de Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae) Contra Inimigos Naturais do Estágio de Ovo

Eficiência do Cuidado Maternal de Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae) Contra Inimigos Naturais do Estágio de Ovo

Occurrence of certain cuticular structures confirms functionality of dorsal abdominal scent glands in Acanthosomatidae (Heteroptera: Pentatomoidea)

(E)-2-Hexenyl Hexanoate, the Alarm Pheromone of the Bean BugRiptortus clavatus(Heteroptera: Alydidae)

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