Morphology and ultrastructure of integumentary glands of Semiadalia undecimnotata schn. (Coleoptera : Coccinellidae)

Barbier, R.; Ferran, A.; Lannic, J. Le; Allo, Marie-Rose

doi:10.1016/0020-7322(92)90018-i

Cited by 20 publications

(19 citation statements)

References 15 publications

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“…These unicellular glands are peculiar by reason of their secretory apparatus. Similar to that described by Barbier et al (1992) for a coccinellid, it forms a supraglandular cavity resembling a spongy cushion being densely packed with probably cuticular filaments (Figs. 8b,c, 13b).…”

Section: Ultrastructure Of Tarsal Glandsmentioning

confidence: 57%

“…These unicellular glands are associated with characteristic pore plates at the cuticle surface (Fig. 4e) and resemble, in their overall organization, the integumentary glands of the coccinellid Semiadalia undecimnotata (Barbier et al, 1992) or the pyrrhocorid Dysdercus fasciatus (Lawrence and Staddon, 1975). As in "type A" cells, the secretion has an inhomogeneous appearance (Fig.…”

Section: Ultrastructure Of Tarsal Glandsmentioning

confidence: 96%

“…This structure serves as a reservoir for the secretion, which probably spreads evenly among these filaments. Glands associated with cibriform plates have often been discussed in the context of pheromone secretion (e.g., Lawrence and Staddon, 1975;Barbier et al, 1992;Skilbeck and Anderson, 1994;Foldi and Lambdin, 1995) or the lubrication of sensilla (Skilbeck and Anderson, 1994). It is difficult to decide whether, in Stenus beetles, they have a specific function connected with the performance of the tarsi, particularly since pore plates of a similar appearance can be found on many other parts of the Stenus body (e.g., head, abdomen; pers.…”

Section: Ultrastructure Of Tarsal Glandsmentioning

confidence: 98%

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Structure of the tarsi in some stenus species (coleoptera, staphylinidae): External morphology, ultrastructure, and tarsal secretion

Betz

2002

Journal of Morphology

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SEM studies show that the differentiation among Stenus species with respect to the formation of the tarsi (wide bilobed vs. slender tarsomeres) takes place with a considerable augmentation of tarsal ventral setae in wide bilobed tarsomeres. The structural diversity of ventral tarsal setae among and within species is discussed with respect to 1) their different roles as mechanosensilla and tenent setae, respectively, and 2) the different selection pressures in terms of adhesive requirements along the longitudinal tarsus axis. The tarsi are provided with four groups of tarsal mechanosensilla, comprising hair and bristle sensilla, campaniform sensilla, and scolopidia. The tarsus wall is supported by an epidermis, which forms three different types of glands pouring their secretion via different exit paths onto the outer cuticle. The organization and ultrastructure of each of these glands is described. Only one (unicellular) gland is directly associated with the ventral tenent setae and is thus considered to form the main part of the adhesive secretion. The beetles appear to release the tarsal secretion through mediation of the tenent setae, which contains a lipid and a proteinaceous fraction. I propose that the secretion is discharged to the outside via a system of very fine pore canals in the wall of the setal shaft. Gas chromatography and infrared spectroscopy revealed that the lipid fraction of the secretion is a mixture of unsaturated fatty acid glycerides and aliphatic hydrocarbons whose spectra are similar to those of extractions of the superficial lipid coating of the body surface.

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Section: Ultrastructure Of Tarsal Glandsmentioning

confidence: 57%

Section: Ultrastructure Of Tarsal Glandsmentioning

confidence: 96%

Section: Ultrastructure Of Tarsal Glandsmentioning

confidence: 98%

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Structure of the tarsi in some stenus species (coleoptera, staphylinidae): External morphology, ultrastructure, and tarsal secretion

Betz

2002

Journal of Morphology

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“…Similar descriptions of gland cells have been provided for the mandibular glands of honeybee queens [15], the Koshewnikow glands of honeybees [17], the tarsal glands of bumble bees [27], the integument glands of a species of ladybird beetle [1] and numerous glands present in ants [2,4]. An end apparatus and its microvilli are common in insect gland cells with the vesicle contents often discharged at the base of the microvilli [1,17,27].…”

Section: Type-b Glandsmentioning

confidence: 79%

How queen-like are the tergal glands in workers of Apis mellifera capensis and Apis mellifera scutellata?

2000

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“…Perhaps the hydrocarbons on the elytrae of melanics differ from those on non-melanics. Also the studies on functional morphology in coccinellids (Barbier et al, 1992;Jourdan et al, 1995) 3) next gen. of the selected line always founded by 2 2 that mated with mel. k k ; all females, regardless of the form of their male mate, provided offspring in the control line matophore in the bursa copulatrix.…”

Section: Preferential Mating In Adalia Bipunctatamentioning

confidence: 99%

Sexual activity in Coccinellidae (Coleoptera): a review

Hodek¹,

Ceryngier²

2000

Eur. J. Entomol.

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Abstract. Although there are few studies of the sexual life of coccinellids these phenomena have attracted the interest of isolated groups of coccinellidologists. Probably the most important finding is that at least some coccinellid species (Adalia bipunctata and Harmonia axyridis) do not mate at random with the females prefering certain males. This phenomenon was first observed in Adalia bipunctata by Lusis and then studied in detail by Majerus, O'Donald, de Jong and others. In Japan, Harmonia axyridis was similarly studied by Osawa and Ueno. While the former author found that in this species (as in A. bipunctata) the colour of the elytra is most important in mate choice by females, the latter stresses that size and activity are important. Sperm competition is another interesting phenomenon, most often the sperm of the last male fertilizes the eggs (Ueno, Katakura). Obata and Hidaka have contributed in an important way to elucidating the function of the spermatophore in mating. The studies by Hodek and Ceryngier recorded the matura tion and regression of testicular follicles and the relation of mating activity to diapause in four coccinellid species. In contrast to females, where induction of diapause prevents maturation of ovaries, in diapausing males the tissue of testicular follicles remains active until the temperatures decrease in late autumn. Dissection of spermathecae revealed principal difference in autumn mating activity between Coccinella septempunctata, in which 40-60% of the beetles mated before hibernation and Ceratomegilla (syn. Semiadalia) undecimnotata, which does not mate in autumn.

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Morphology and ultrastructure of integumentary glands of Semiadalia undecimnotata schn. (Coleoptera : Coccinellidae)

Cited by 20 publications

References 15 publications

Structure of the tarsi in some stenus species (coleoptera, staphylinidae): External morphology, ultrastructure, and tarsal secretion

Structure of the tarsi in some stenus species (coleoptera, staphylinidae): External morphology, ultrastructure, and tarsal secretion

How queen-like are the tergal glands in workers of Apis mellifera capensis and Apis mellifera scutellata?

Sexual activity in Coccinellidae (Coleoptera): a review

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