Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae)

The egg and the five nymphal instars of Ectemnostega quechua are described and illustrated for the first time. The eggs of Ectemnostega have a short stalk, and the shape, size and chorionic structure differ among groups of species. The nymphal characters most useful in identifying instars I-V of Ect...

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Detalles Bibliográficos
Autores principales: Konopko, Susana Amanda, Mazzucconi, Silvia Ana
Publicado: 2011
Materias:
Corixinae
Immature stages
Neotropical region
Nepomorpha
Taxonomy
body shape
body size
egg
insect
morphometry
Neotropical Region
new genus
new species
taxonomy
Corixidae
Ectemnostega quechua
Hemiptera
Heteroptera
Insecta
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v45_n31-32_p1995_Konopko
http://hdl.handle.net/20.500.12110/paper_00222933_v45_n31-32_p1995_Konopko
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00222933_v45_n31-32_p1995_Konopko
record_format dspace
spelling paper:paper_00222933_v45_n31-32_p1995_Konopko2023-06-08T14:49:02Z Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae) Konopko, Susana Amanda Mazzucconi, Silvia Ana Corixinae Immature stages Neotropical region Nepomorpha Taxonomy body shape body size egg insect morphometry Neotropical Region new genus new species taxonomy Corixidae Corixinae Ectemnostega quechua Hemiptera Heteroptera Insecta Nepomorpha The egg and the five nymphal instars of Ectemnostega quechua are described and illustrated for the first time. The eggs of Ectemnostega have a short stalk, and the shape, size and chorionic structure differ among groups of species. The nymphal characters most useful in identifying instars I-V of Ectemnostega are: body length; number of rostrum sulcations; number of setae on inner surface of protibiotarsus; spines and setae, and spines on posteroventral surface of mesofemur and mesotibia, respectively; setae on posterodorsal surface of mesotibia and mesotarsus; spines and setae on anteroventral surface and setae on posterior surface of metatibia; swimming hairs on anteroventral and posterodorsal surfaces of metatarsus; and the grade of development of wing pads. The nymphs of E. quechua can be easily distinguished fromother species of Ectemnostega by the number of spines and setae on the posteroventral surface of mesofemur. © 2011 Taylor & Francis. Fil:Konopko, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mazzucconi, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v45_n31-32_p1995_Konopko http://hdl.handle.net/20.500.12110/paper_00222933_v45_n31-32_p1995_Konopko
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Corixinae
Immature stages
Neotropical region
Nepomorpha
Taxonomy
body shape
body size
egg
insect
morphometry
Neotropical Region
new genus
new species
taxonomy
Corixidae
Corixinae
Ectemnostega quechua
Hemiptera
Heteroptera
Insecta
Nepomorpha
spellingShingle Corixinae
Immature stages
Neotropical region
Nepomorpha
Taxonomy
body shape
body size
egg
insect
morphometry
Neotropical Region
new genus
new species
taxonomy
Corixidae
Corixinae
Ectemnostega quechua
Hemiptera
Heteroptera
Insecta
Nepomorpha
Konopko, Susana Amanda
Mazzucconi, Silvia Ana
Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae)
topic_facet Corixinae
Immature stages
Neotropical region
Nepomorpha
Taxonomy
body shape
body size
egg
insect
morphometry
Neotropical Region
new genus
new species
taxonomy
Corixidae
Corixinae
Ectemnostega quechua
Hemiptera
Heteroptera
Insecta
Nepomorpha
description The egg and the five nymphal instars of Ectemnostega quechua are described and illustrated for the first time. The eggs of Ectemnostega have a short stalk, and the shape, size and chorionic structure differ among groups of species. The nymphal characters most useful in identifying instars I-V of Ectemnostega are: body length; number of rostrum sulcations; number of setae on inner surface of protibiotarsus; spines and setae, and spines on posteroventral surface of mesofemur and mesotibia, respectively; setae on posterodorsal surface of mesotibia and mesotarsus; spines and setae on anteroventral surface and setae on posterior surface of metatibia; swimming hairs on anteroventral and posterodorsal surfaces of metatarsus; and the grade of development of wing pads. The nymphs of E. quechua can be easily distinguished fromother species of Ectemnostega by the number of spines and setae on the posteroventral surface of mesofemur. © 2011 Taylor & Francis.
author Konopko, Susana Amanda
Mazzucconi, Silvia Ana
author_facet Konopko, Susana Amanda
Mazzucconi, Silvia Ana
author_sort Konopko, Susana Amanda
title Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae)
title_short Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae)
title_full Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae)
title_fullStr Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae)
title_full_unstemmed Morphometry and chaetotaxy of the nymphs of Ectemnostega (Ectemnostegella) quechua (Bachmann 1961) (Insecta: Hemiptera: Heteroptera: Corixidae)
title_sort morphometry and chaetotaxy of the nymphs of ectemnostega (ectemnostegella) quechua (bachmann 1961) (insecta: hemiptera: heteroptera: corixidae)
publishDate 2011
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v45_n31-32_p1995_Konopko
http://hdl.handle.net/20.500.12110/paper_00222933_v45_n31-32_p1995_Konopko
work_keys_str_mv AT konopkosusanaamanda morphometryandchaetotaxyofthenymphsofectemnostegaectemnostegellaquechuabachmann1961insectahemipteraheteropteracorixidae
AT mazzucconisilviaana morphometryandchaetotaxyofthenymphsofectemnostegaectemnostegellaquechuabachmann1961insectahemipteraheteropteracorixidae
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