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handle: 11586/3355
SENSE ORGANS IN DIASPIDIDAE, RECENT DATA AND PERSPECTIVES This paper reports the recent acquisitions on the morphology of sensilla of Diaspididae and their functional interpretation. Mechanoreceptors and chemoreceptors are described and recognized on the basis of the presence, placement and number of wall pores; placement on the insect’s body and absolute size of sensilla is considered of interest indeed. The functional interpretation of these specialized sense organs is draft regarding to the peculiar life-style of the Diaspididae. The morphology, function and importance as experimental system of the antennal sensillum in adult female Diaspis echinocacti (Bouché) is stressed. Possible use of the primitive or derivative status of the antennal seta morphology is proposed as a cue to study Diaspididae phylogenesis. Future researches will report about the nature of the so-called “knobbed seta”, still uncertain because of technical difficulties in TEM observation, and confirm the reduction as the major phylogenetic trend of Diaspididae female. Key words: Unaspis eunonymi, Melanaspis inopinata, Aonidia lauri, Aonidiella aurantii, Aspidiotus nerii, Diamond, shaped sensilla. STUDI RECENTI SUGLI ORGANI DI SENSO DEI DIASPIDIDAE (COCCOIDEA) Questa pubblicazione, dopo aver ricordato gli argomenti di maggiore interesse nello studio dei Diaspididae, riporta quanto noto sugli organi di senso di questo taxon. Nel corso della trattazione vengono illustrate prima le caratteristiche dei sensilli delle femmine per poi passare a quelli dei maschi. Il lettore troverà nel testo osservazioni ricavate con l’ausilio della microscopia luce, elettronica a scansione ed a trasmissione oltre che con l’ausilio di coloranti neuroaffini. Nel complesso viene riportata la presenza di sensilli chemiorecettori: chetici, tricoidei e capitati; oltre che di meccanorecettori: tricoidei e campaniformi. L’interpretazione morfo-funzionale offerta tiene conto del tipo, delle dimensioni e della posizione dei singoli sensilli oltre che del particolare stile di vita di questi piccoli interessanti insetti. Parole chiave: Unaspis eunonymi, Melanaspis inopinata, Aonidia lauri, Aonidiella aurantii, Aspidiotus nerii.
Entomologica, Vol 35 (2001)
Unaspis eunonymi, Melanaspis inopinata, Aonidia lauri, Aonidiella aurantii, Aspidiotus nerii, Diamond, shaped sensilla.
Unaspis eunonymi, Melanaspis inopinata, Aonidia lauri, Aonidiella aurantii, Aspidiotus nerii, Diamond, shaped sensilla.
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