Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvae
The adults and larvae of Passalidae are subsocial insects commonly found in tropical forests, living in decaying wood gallery systems constructed by adults. Currently, few repots on the larvae of Neotropical Passalidae have been published and information is scarce. In this study, the Passalus (Perti...
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Vicerractoría Investigación
2015-09-01
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| Series: | Revista de Biología Tropical |
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| Online Access: | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442015000300695&lng=en&tlng=en |
| _version_ | 1797723057002905600 |
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| author | Ingrid Mattos José Ricardo Miras Mermudes Pedro Reyes-Castillo |
| author_facet | Ingrid Mattos José Ricardo Miras Mermudes Pedro Reyes-Castillo |
| author_sort | Ingrid Mattos |
| collection | DOAJ |
| description | The adults and larvae of Passalidae are subsocial insects commonly found in tropical forests, living in decaying wood gallery systems constructed by adults. Currently, few repots on the larvae of Neotropical Passalidae have been published and information is scarce. In this study, the Passalus (Pertinax) gravelyiMoreira, 1922 larvae is described for the first time, based on ten larval specimens 1 (1° instar), 4 (2° instar), and 5 (3° instar) associated with three adults collected from a single colony at the Parque Nacional do Itatiaia (Itatiaia, Rio de Janeiro, Brazil). The description was carried out based on electronic and digital photographs of diagnostic structures, with some details on the systematic of the species. The larvae of Passalus gravelyihas the general setal 'Pertinax' pattern and differed from others by 16 to 18 setae on the anal ring, the other larvae data from Brazilian species show the anal ring with 10 to 12 setae. A discussion on the presence of sexual dimorphism in 62 species of two and three instars of Passalidae larvae is provided for the first time. Besides, a description of the terminal ampullapresent as a cuticular structure found in the medial-ventral area of the 9th abdominal sternite in males is also given. The terminal ampullawas only observed in the Passalidae male larvae and was not visible in female larvae. The terminal ampullaare acknowledged now in males of 64 passalid species, that are taxonomically distributed in world tropical forests, at the Oriental and Australian subfamily Aulacocyclinae (Aulacocyclini & Ceracupini) and the cosmotropical subfamily Passalinae (Solenocyclini, Macrolinini, Passalini, & Proculini). |
| first_indexed | 2024-03-12T09:57:33Z |
| format | Article |
| id | doaj.art-935461c2a67b48ce83c1d8b317ffa051 |
| institution | Directory Open Access Journal |
| issn | 0034-7744 |
| language | English |
| last_indexed | 2024-03-12T09:57:33Z |
| publishDate | 2015-09-01 |
| publisher | Vicerractoría Investigación |
| record_format | Article |
| series | Revista de Biología Tropical |
| spelling | doaj.art-935461c2a67b48ce83c1d8b317ffa0512023-09-02T12:04:33ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442015-09-01633695704S0034-77442015000300695Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvaeIngrid MattosJosé Ricardo Miras MermudesPedro Reyes-CastilloThe adults and larvae of Passalidae are subsocial insects commonly found in tropical forests, living in decaying wood gallery systems constructed by adults. Currently, few repots on the larvae of Neotropical Passalidae have been published and information is scarce. In this study, the Passalus (Pertinax) gravelyiMoreira, 1922 larvae is described for the first time, based on ten larval specimens 1 (1° instar), 4 (2° instar), and 5 (3° instar) associated with three adults collected from a single colony at the Parque Nacional do Itatiaia (Itatiaia, Rio de Janeiro, Brazil). The description was carried out based on electronic and digital photographs of diagnostic structures, with some details on the systematic of the species. The larvae of Passalus gravelyihas the general setal 'Pertinax' pattern and differed from others by 16 to 18 setae on the anal ring, the other larvae data from Brazilian species show the anal ring with 10 to 12 setae. A discussion on the presence of sexual dimorphism in 62 species of two and three instars of Passalidae larvae is provided for the first time. Besides, a description of the terminal ampullapresent as a cuticular structure found in the medial-ventral area of the 9th abdominal sternite in males is also given. The terminal ampullawas only observed in the Passalidae male larvae and was not visible in female larvae. The terminal ampullaare acknowledged now in males of 64 passalid species, that are taxonomically distributed in world tropical forests, at the Oriental and Australian subfamily Aulacocyclinae (Aulacocyclini & Ceracupini) and the cosmotropical subfamily Passalinae (Solenocyclini, Macrolinini, Passalini, & Proculini).http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442015000300695&lng=en&tlng=eninmaduromorfologíadimorfismo sexualNeotropicalPassalinaePassalini. |
| spellingShingle | Ingrid Mattos José Ricardo Miras Mermudes Pedro Reyes-Castillo Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvae Revista de Biología Tropical inmaduro morfología dimorfismo sexual Neotropical Passalinae Passalini. |
| title | Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvae |
| title_full | Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvae |
| title_fullStr | Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvae |
| title_full_unstemmed | Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvae |
| title_short | Larval structure of Passalus gravelyiand sexual dimorphism in Passalid larvae |
| title_sort | larval structure of passalus gravelyiand sexual dimorphism in passalid larvae |
| topic | inmaduro morfología dimorfismo sexual Neotropical Passalinae Passalini. |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442015000300695&lng=en&tlng=en |
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