Setiferous structures of male coleoptera

Faustini, D. L.; Halstead, D.G.H.

doi:10.1002/jmor.1051730106

Cited by 32 publications

(24 citation statements)

References 18 publications

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“…Their basic structure, comprising a depression-containing dense, fluted or grooved setae, and numerous pores, is similar to that found in the setiferous sex patches of other Coleoptera (Faustini & Halstead, 1982).…”

Section: Discussionmentioning

confidence: 55%

Scanning electron morphological studies of Tribolium confusum Jacquelin du Val (Coleopteran: Tenebrionidae)

Zohry

2017

JoBAZ

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Background: The confused flour beetle Tribolium confusum Jacquelin du Val (Coleopteran: Tenebrionidae) is the most destructive pest of stored products worldwide. It is the most common pest of wheat flour. Results: This study describes and illustrates the larvae, pupae, and adults of T. confusum using scanning electron microscopy. The first larval instars are 5.0-5.1 mm long and 0.5-0.6 mm wide whereas the last larval instars are 5. 75-6.9 mm long and 0.75-0.95 mm wide. Adults of T. confusum are reddish brown elongate beetles (4.0-4.5 mm in body length and 1.0-1.2 mm in width). Electron micrographs revealed the structure of the mouth parts during the larval, pupal, and adult stages as well as the structure of thoracic and abdominal appendages. Results indicated that the setiferous sex patches which were reported in males can often be used for sexing specimens. A specific feature of the first instar larvae of T. confusum is the extreme shortened antenna with a reduced number of antennomeres and the presence of well-developed and moderately long legs. Conclusion: SEM examination may help us not only discover and understand new morphological details as the pits with spine on the elytra and the spikes on the membrane wings which will facilitate the identification of this species but also clarify the functions of various body parts.

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Section: Discussionmentioning

confidence: 55%

Scanning electron morphological studies of Tribolium confusum Jacquelin du Val (Coleopteran: Tenebrionidae)

Zohry

2017

JoBAZ

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“…Ma et al 1980;Bartelt et al 1993). There are no special structures on the male's surface to release the pheromone (as in other Coleoptera, see Faustini & Halstead 1982). Due to the wetting properties of isopropyl esters (Oodyke 1976;Dettner 1984), it might simply spread over the entire surface during release.…”

Section: Discussionmentioning

confidence: 99%

Isopropyl (Z9) -hexadecenoate as a male attractant pheromone from the sternal gland of the rove beetle Aleochara curtala (Coleoptera: Staphylinidae)

et al. 1999

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In the rove beetle Aleochara curtula, a male specific sternal gland is described. Isopropyl (Z9)-hexadecenoate has been identified by GC/MS of surface and sternal gland extracts as a male specific compound. Its emission in the air was demonstrated by closed-loopstripping-analyses. In field experiments, conspecific males and females were attracted by the odor of carrion, caged males from laboratory cultures, and by the synthetic ester. Isopropyl (Z9)-hexadecenoate or live males, combined with fresh carrion attract more beetles than a fresh carcass alone. Isopropyl hexadecanoate as a minor compound was not attractive. The term ''aggregation'' pheromone and the ecological significance of attracting females to a fresh carcass allowing early copulation and egg-deposition are discussed.

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“…Consequently, a hypothesis is that the sclerolepidia are part of a secretory system, the function of the secretion being unknown. Faustini & Halstead (1982) noted the presence of pores adjacent to setae of setiferous sex patches in male Coleoptera. They demonstrated that these pores were the orifices of secretory cells, and provided images of a waxy secretion being produced from such a pore.…”

Section: Functionmentioning

confidence: 98%

Morphology and systematic significance of sclerolepidia in the weevils (Coleoptera: Curculionoidea)

Lyal¹,

Douglas

Hine

2006

Systematics and Biodiversity

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Sclerolepidia are minute specialized structures found only alongthe metepisternal suture in the weevil subfamilies Scolytinae, Cossoninae, Baridinae and some tribes in the Cryptorhynchinae, Conoderinae, Molytinae, Curculioninae and Cyclominae of the Curculionidae. Their presence has been used to establish relationships at subfamily level in the Curculionidae, although some of these are questionable, because of misperceptions of the distribution of the structure across taxa. Within the Curculionidae sclerolepidia are probably homologous, but provide limited information aiding establishment of sister-group relationships between subfamilies, and multiple loss is likely. Analogous structures occur in the Erirhinidae and the Eucnemidae, but not elsewhere in the Coleoptera. Structural evidence shows sclerolepidia to be derived from scales. Their morphology allows division into 'squamiform', 'digitate', 'peg-like' and 'plumose' types. Squamiform sclerolepidia are only slightly modified from the ancestral scale and are probably the plesiomorphic type, with modification probably occurring independently a number of times. Taxonomic characters and phylogenetic information are provided by distribution of different types within the weevils at species, genus and higher levels. Numerous systematic changes were identified as necessary during this project from the study of the sclerolepidia; 27 genera are transferred at tribal level and these changes are listed in an appendix. The functions of sclerolepidia probably differ across the Curculionidae, and may include sensing the relative positions of the metepisternum and metasternum during flight, and diffusion of secreted wax or other chemicals.

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Setiferous structures of male coleoptera

Cited by 32 publications

References 18 publications

Scanning electron morphological studies of Tribolium confusum Jacquelin du Val (Coleopteran: Tenebrionidae)

Scanning electron morphological studies of Tribolium confusum Jacquelin du Val (Coleopteran: Tenebrionidae)

Isopropyl (Z9) -hexadecenoate as a male attractant pheromone from the sternal gland of the rove beetle Aleochara curtala (Coleoptera: Staphylinidae)

Morphology and systematic significance of sclerolepidia in the weevils (Coleoptera: Curculionoidea)

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