An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans
The simple eyes (ocelli) of recently emerged adult Triatoma infestans exhibit a narrow elongated "pupil", surrounded by a ring of brown-reddish pigment, the "iris". This pupil does not respond to changes in the illumination, but varies in size after the imaginal ecdysis. This cha...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2000-10-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000500024 |
| _version_ | 1797712676323852288 |
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| author | Teresita C Insausti Claudio R Lazzari |
| author_facet | Teresita C Insausti Claudio R Lazzari |
| author_sort | Teresita C Insausti |
| collection | DOAJ |
| description | The simple eyes (ocelli) of recently emerged adult Triatoma infestans exhibit a narrow elongated "pupil", surrounded by a ring of brown-reddish pigment, the "iris". This pupil does not respond to changes in the illumination, but varies in size after the imaginal ecdysis. This change corresponds, internally, with the growth of the corneal lens and the associated retina up to an age of about 20 days. This has not been previously observed in an insect. The use of this characteristic for recognising young adults of this species is suggested. |
| first_indexed | 2024-03-12T07:25:15Z |
| format | Article |
| id | doaj.art-78be276406984842931f3513990f7b9b |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T07:25:15Z |
| publishDate | 2000-10-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-78be276406984842931f3513990f7b9b2023-09-02T22:10:55ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602000-10-0195574374610.1590/S0074-02762000000500024An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestansTeresita C InsaustiClaudio R LazzariThe simple eyes (ocelli) of recently emerged adult Triatoma infestans exhibit a narrow elongated "pupil", surrounded by a ring of brown-reddish pigment, the "iris". This pupil does not respond to changes in the illumination, but varies in size after the imaginal ecdysis. This change corresponds, internally, with the growth of the corneal lens and the associated retina up to an age of about 20 days. This has not been previously observed in an insect. The use of this characteristic for recognising young adults of this species is suggested.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000500024Triatomasimple eyesocelliChagas vectorsageing |
| spellingShingle | Teresita C Insausti Claudio R Lazzari An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans Memorias do Instituto Oswaldo Cruz Triatoma simple eyes ocelli Chagas vectors ageing |
| title | An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans |
| title_full | An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans |
| title_fullStr | An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans |
| title_full_unstemmed | An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans |
| title_short | An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans |
| title_sort | ocellar pupil that does not change with light intensity but with the insect age in triatoma infestans |
| topic | Triatoma simple eyes ocelli Chagas vectors ageing |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000500024 |
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