Abstract:
:The form and function of the hesperiid feeding apparatus was studied in detail. The butterflies in the family Hesperiidae are of particular interest because the longest proboscis ever recorded in Papilionoidea was found in the Neotropical genus Damas. We focused on the functional morphology by comparing proboscis morphology as well as size and composition of both the stipes pump and the cibarial suction pump in skippers with short and extremely long proboscis. Results revealed that all studied Hesperiidae have the same proboscis micromorphology and sensilla endowment regardless of the proboscis length. However, the numbers of internal muscles of the proboscis, the morphology of the stipes pump as well as the pumping organs for nectar uptake are related to the proboscis length. We conclude that the low number of tip sensilla compared to proboscis length is responsible for remarkably longer manipulation times of long-proboscid species during flower visits. The organs for proboscis movements and nectar uptake organs are well tuned to the respective proboscis length and are accordingly bigger in species with a proboscis that measures twice the body length.
journal_name
J Morpholjournal_title
Journal of morphologyauthors
Krenn HW,Bauder JAdoi
10.1002/jmor.20780subject
Has Abstractpub_date
2018-03-01 00:00:00pages
396-408issue
3eissn
0362-2525issn
1097-4687journal_volume
279pub_type
杂志文章abstract::Changes in size frequency distribution of extrastromal follicles, atretric follicles (AF), and the number of oogonia, oocytes, and primordial follicles in the ovaries are studied in Calotes versicolor during its annual reproductive cycle. Extrastromal follicles were graded into stages I to VI based on their diemeter. ...
journal_title:Journal of morphology
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journal_title:Journal of morphology
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journal_title:Journal of morphology
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journal_title:Journal of morphology
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更新日期:1996-12-01 00:00:00
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