Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada
Abstract A new genus and species of Orthocladiinae, Doncricotopus bicaudatus, is described in all stages. The imago has hairy eyes and well developed pulvilli. It can be separated from Nanocladius Kieff. by means of nonprotruding eyes and by having more than two acrostichals, from Rheocricotopus Thi...
Published in: | Insect Systematics & Evolution |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Brill
1981
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1163/187631281794709845 https://brill.com/view/journals/ise/12/2/article-p223_15.xml https://brill.com/downloadpdf/journals/ise/12/2/article-p223_15.xml |
id |
crbrillap:10.1163/187631281794709845 |
---|---|
record_format |
openpolar |
spelling |
crbrillap:10.1163/187631281794709845 2023-05-15T17:46:38+02:00 Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada Sæther, Ole 1981 http://dx.doi.org/10.1163/187631281794709845 https://brill.com/view/journals/ise/12/2/article-p223_15.xml https://brill.com/downloadpdf/journals/ise/12/2/article-p223_15.xml unknown Brill Insect Systematics & Evolution volume 12, issue 2, page 223-229 ISSN 1399-560X 1876-312X Insect Science Ecology Ecology, Evolution, Behavior and Systematics journal-article 1981 crbrillap https://doi.org/10.1163/187631281794709845 2022-12-11T12:48:48Z Abstract A new genus and species of Orthocladiinae, Doncricotopus bicaudatus, is described in all stages. The imago has hairy eyes and well developed pulvilli. It can be separated from Nanocladius Kieff. by means of nonprotruding eyes and by having more than two acrostichals, from Rheocricotopus Thien. & Harn. by the bare anal point proper and by having the acrostichals in the centre of scutum only. The pupa has thoracic horn and anal macrosetae as in Rheocricotopus, but other details as in Nanocladius. The larvae has a cardinal beard as in Rheocricotopus and simple S I as in Nanocladius. The similarities between Rheocricotopus and Doncricotopus are shown to be based on symplesiomorphies, those between Nanocladius and Doncricotopus on synapomorphies, with Nanocladius forming the sister genus of Doncricotopus. Article in Journal/Newspaper Northwest Territories Brill (via Crossref) Canada Northwest Territories Insect Systematics & Evolution 12 2 223 229 |
institution |
Open Polar |
collection |
Brill (via Crossref) |
op_collection_id |
crbrillap |
language |
unknown |
topic |
Insect Science Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Insect Science Ecology Ecology, Evolution, Behavior and Systematics Sæther, Ole Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada |
topic_facet |
Insect Science Ecology Ecology, Evolution, Behavior and Systematics |
description |
Abstract A new genus and species of Orthocladiinae, Doncricotopus bicaudatus, is described in all stages. The imago has hairy eyes and well developed pulvilli. It can be separated from Nanocladius Kieff. by means of nonprotruding eyes and by having more than two acrostichals, from Rheocricotopus Thien. & Harn. by the bare anal point proper and by having the acrostichals in the centre of scutum only. The pupa has thoracic horn and anal macrosetae as in Rheocricotopus, but other details as in Nanocladius. The larvae has a cardinal beard as in Rheocricotopus and simple S I as in Nanocladius. The similarities between Rheocricotopus and Doncricotopus are shown to be based on symplesiomorphies, those between Nanocladius and Doncricotopus on synapomorphies, with Nanocladius forming the sister genus of Doncricotopus. |
format |
Article in Journal/Newspaper |
author |
Sæther, Ole |
author_facet |
Sæther, Ole |
author_sort |
Sæther, Ole |
title |
Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada |
title_short |
Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada |
title_full |
Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada |
title_fullStr |
Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada |
title_full_unstemmed |
Doncricotopus bicaudatus n.gen., n.sp. (Diptera: Chironomidae, Orthocladiinae) from the Northwest Territories, Canada |
title_sort |
doncricotopus bicaudatus n.gen., n.sp. (diptera: chironomidae, orthocladiinae) from the northwest territories, canada |
publisher |
Brill |
publishDate |
1981 |
url |
http://dx.doi.org/10.1163/187631281794709845 https://brill.com/view/journals/ise/12/2/article-p223_15.xml https://brill.com/downloadpdf/journals/ise/12/2/article-p223_15.xml |
geographic |
Canada Northwest Territories |
geographic_facet |
Canada Northwest Territories |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_source |
Insect Systematics & Evolution volume 12, issue 2, page 223-229 ISSN 1399-560X 1876-312X |
op_doi |
https://doi.org/10.1163/187631281794709845 |
container_title |
Insect Systematics & Evolution |
container_volume |
12 |
container_issue |
2 |
container_start_page |
223 |
op_container_end_page |
229 |
_version_ |
1766150399156289536 |