Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal comb
Structures that assist in spreading secretions produced by the metathoracic glands were examined in Reduviidae and Pachynomidae (Heteroptera). The systematic distribution of a row of long and stout setae on the metacoxa, the metacoxal comb, was reinvestigated in a representative sample in both taxa....
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| Format: | Article |
| Language: | English |
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Institute of Entomology, Biology Centre, Czech Academy of Science
2006-01-01
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| Series: | European Journal of Entomology |
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| Online Access: | https://www.eje.cz/artkey/eje-200601-0015_Metathoracic_glands_and_associated_evaporatory_structures_in_Reduvioidea_Heteroptera_Cimicomorpha_with_obse.php |
| _version_ | 1819283428804132864 |
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| author | Christiane WEIRAUCH |
| author_facet | Christiane WEIRAUCH |
| author_sort | Christiane WEIRAUCH |
| collection | DOAJ |
| description | Structures that assist in spreading secretions produced by the metathoracic glands were examined in Reduviidae and Pachynomidae (Heteroptera). The systematic distribution of a row of long and stout setae on the metacoxa, the metacoxal comb, was reinvestigated in a representative sample in both taxa. Observations on living Dipetalogaster maximus (Reduviidae: Triatominae) corroborated the interpretation of this metacoxal comb as an evaporatory device, which assists in atomizing the gland secretions. In addition to the metacoxal comb, a row of stout setae on the metacetabulum - a metacetabular comb - was found in several Reduviidae, which interacts with the metacoxal comb during rotation of the metacoxa. In addition to those atomizing devices, cuticular modifications surrounding the opening of the metathoracic gland, which presumably form evaporatoria, were discovered in Ectrichodiinae. The meshwork-like structure of this cuticle resembles the cuticular modifications found associated with the opening of the Brindley's gland in Reduviidae, but differs from the mushroom-like evaporatoria around the metathoracic glands in most Cimicomorpha and Pentatomomorpha. Thus, two fundamentally different mechanisms to spread secretions of the metathoracic gland - atomization and evaporation - are present in Reduviidae. |
| first_indexed | 2024-12-24T01:31:20Z |
| format | Article |
| id | doaj.art-98904cbd5be94aafa452a0c07109c7c6 |
| institution | Directory Open Access Journal |
| issn | 1210-5759 1802-8829 |
| language | English |
| last_indexed | 2024-12-24T01:31:20Z |
| publishDate | 2006-01-01 |
| publisher | Institute of Entomology, Biology Centre, Czech Academy of Science |
| record_format | Article |
| series | European Journal of Entomology |
| spelling | doaj.art-98904cbd5be94aafa452a0c07109c7c62022-12-21T17:22:21ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292006-01-0110319710810.14411/eje.2006.015eje-200601-0015Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal combChristiane WEIRAUCH0American Museum of Natural History, Division of Invertebrate Zoology, Central Park West at 79th Street, New York, NY 10024, USA; e-mail: weirauch@amnh.orgStructures that assist in spreading secretions produced by the metathoracic glands were examined in Reduviidae and Pachynomidae (Heteroptera). The systematic distribution of a row of long and stout setae on the metacoxa, the metacoxal comb, was reinvestigated in a representative sample in both taxa. Observations on living Dipetalogaster maximus (Reduviidae: Triatominae) corroborated the interpretation of this metacoxal comb as an evaporatory device, which assists in atomizing the gland secretions. In addition to the metacoxal comb, a row of stout setae on the metacetabulum - a metacetabular comb - was found in several Reduviidae, which interacts with the metacoxal comb during rotation of the metacoxa. In addition to those atomizing devices, cuticular modifications surrounding the opening of the metathoracic gland, which presumably form evaporatoria, were discovered in Ectrichodiinae. The meshwork-like structure of this cuticle resembles the cuticular modifications found associated with the opening of the Brindley's gland in Reduviidae, but differs from the mushroom-like evaporatoria around the metathoracic glands in most Cimicomorpha and Pentatomomorpha. Thus, two fundamentally different mechanisms to spread secretions of the metathoracic gland - atomization and evaporation - are present in Reduviidae.https://www.eje.cz/artkey/eje-200601-0015_Metathoracic_glands_and_associated_evaporatory_structures_in_Reduvioidea_Heteroptera_Cimicomorpha_with_obse.phpheteropterareduviidaemetathoracic glandmorphologydefensive glanddissemination of secretion |
| spellingShingle | Christiane WEIRAUCH Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal comb European Journal of Entomology heteroptera reduviidae metathoracic gland morphology defensive gland dissemination of secretion |
| title | Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal comb |
| title_full | Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal comb |
| title_fullStr | Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal comb |
| title_full_unstemmed | Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal comb |
| title_short | Metathoracic glands and associated evaporatory structures in Reduvioidea (Heteroptera: Cimicomorpha), with observation on the mode of function of the metacoxal comb |
| title_sort | metathoracic glands and associated evaporatory structures in reduvioidea heteroptera cimicomorpha with observation on the mode of function of the metacoxal comb |
| topic | heteroptera reduviidae metathoracic gland morphology defensive gland dissemination of secretion |
| url | https://www.eje.cz/artkey/eje-200601-0015_Metathoracic_glands_and_associated_evaporatory_structures_in_Reduvioidea_Heteroptera_Cimicomorpha_with_obse.php |
| work_keys_str_mv | AT christianeweirauch metathoracicglandsandassociatedevaporatorystructuresinreduvioideaheteropteracimicomorphawithobservationonthemodeoffunctionofthemetacoxalcomb |