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A review of Norwegian Gymnometriocnemus (Diptera, Chironomidae) including the description of two new species and a new name for Gymnometriocnemusvolitans (Goetghebuer) sensu Brundin.

Stur E, Ekrem T - Zookeys (2015)

Bottom Line: We present arguments for Chaetocladiusvolitans (Goetghebuer) comb. n. and for the use of Gymnometriocnemuskamimegavirgus for Gymnometriocnemusvolitans sensu Brundin.Two of these, Gymnometriocnemus (Gymnometriocnemus) pallidussp. n. and Gymnometriocnemus (Raphidocladius) autumnalissp. n. are regarded as new to science and diagnosed based on adult male morphology and DNA barcodes.The species Gymnometriocnemus (Gymnometriocnemus) marionensis Sæther, 1969 is re-established and a key to all Holarctic species is provided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Norwegian University of Science and Technology, NTNU University Museum, Department of Natural History, NO-7491 Trondheim, Norway.

ABSTRACT
Examination of the syntypes of Metriocnemusvolitans Goetghebuer, 1940 revealed that these specimens belong to the genus Chaetocladius and are not con-specific with Gymnometriocnemusvolitans (Goetghebuer, 1940) sensu Brundin (1956) and Sæther (1983). A literature search showed that Gymnometriocnemuskamimegavirgus Sasa & Hirabayashi, 1993 fits well with the species figured and diagnosed by Brundin (1956) as well as with specimens of this species from Norway. We present arguments for Chaetocladiusvolitans (Goetghebuer) comb. n. and for the use of Gymnometriocnemuskamimegavirgus for Gymnometriocnemusvolitans sensu Brundin. In addition, we provide DNA barcode data that indicate the presence of at least seven Gymnometriocnemus species in Norway of which six are collected as male adults. Two of these, Gymnometriocnemus (Gymnometriocnemus) pallidussp. n. and Gymnometriocnemus (Raphidocladius) autumnalissp. n. are regarded as new to science and diagnosed based on adult male morphology and DNA barcodes. The species Gymnometriocnemus (Gymnometriocnemus) marionensis Sæther, 1969 is re-established and a key to all Holarctic species is provided.

No MeSH data available.


Female Gymnometriocnemus. A–CGymnometriocnemusbrevitarsis (CH-OSF33): A Wing B Antenna C genitalia D–FGymnometriocnemus (Gymnometriocnemus) pallidus sp. n. (CH-eik47): D Wing E Antenna F genitalia. Specimen codes in parenthesis correspond to codes in BOLD and in figure 6. Scale bar: 200 µm (A, D); 100 µm (B, C, E, F).
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Figure 3: Female Gymnometriocnemus. A–CGymnometriocnemusbrevitarsis (CH-OSF33): A Wing B Antenna C genitalia D–FGymnometriocnemus (Gymnometriocnemus) pallidus sp. n. (CH-eik47): D Wing E Antenna F genitalia. Specimen codes in parenthesis correspond to codes in BOLD and in figure 6. Scale bar: 200 µm (A, D); 100 µm (B, C, E, F).

Mentions: We have only seen two females from eastern and central Norway. The two specimens fit Edwards’ description for Gymnometriocnemusbrevitarsis and represent the first records of this species in Norway. The wing and antenna are photographed (Fig. 3A, B) and leg ratios of fore- mid- and hind legs are measured to be LR1 0.41-0.42 [n=2], LR2 0.38-0.39 [n=2], LR3 0.50-0.53 [n=2] respectively. Only females are known and partial COI gene sequences do not reveal close relationships to any other species in Gymnometriocnemus. Subgeneric placement of Gymnometriocnemusbrevitarsis is therefore not possible.


A review of Norwegian Gymnometriocnemus (Diptera, Chironomidae) including the description of two new species and a new name for Gymnometriocnemusvolitans (Goetghebuer) sensu Brundin.

Stur E, Ekrem T - Zookeys (2015)

Female Gymnometriocnemus. A–CGymnometriocnemusbrevitarsis (CH-OSF33): A Wing B Antenna C genitalia D–FGymnometriocnemus (Gymnometriocnemus) pallidus sp. n. (CH-eik47): D Wing E Antenna F genitalia. Specimen codes in parenthesis correspond to codes in BOLD and in figure 6. Scale bar: 200 µm (A, D); 100 µm (B, C, E, F).
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4492210&req=5

Figure 3: Female Gymnometriocnemus. A–CGymnometriocnemusbrevitarsis (CH-OSF33): A Wing B Antenna C genitalia D–FGymnometriocnemus (Gymnometriocnemus) pallidus sp. n. (CH-eik47): D Wing E Antenna F genitalia. Specimen codes in parenthesis correspond to codes in BOLD and in figure 6. Scale bar: 200 µm (A, D); 100 µm (B, C, E, F).
Mentions: We have only seen two females from eastern and central Norway. The two specimens fit Edwards’ description for Gymnometriocnemusbrevitarsis and represent the first records of this species in Norway. The wing and antenna are photographed (Fig. 3A, B) and leg ratios of fore- mid- and hind legs are measured to be LR1 0.41-0.42 [n=2], LR2 0.38-0.39 [n=2], LR3 0.50-0.53 [n=2] respectively. Only females are known and partial COI gene sequences do not reveal close relationships to any other species in Gymnometriocnemus. Subgeneric placement of Gymnometriocnemusbrevitarsis is therefore not possible.

Bottom Line: We present arguments for Chaetocladiusvolitans (Goetghebuer) comb. n. and for the use of Gymnometriocnemuskamimegavirgus for Gymnometriocnemusvolitans sensu Brundin.Two of these, Gymnometriocnemus (Gymnometriocnemus) pallidussp. n. and Gymnometriocnemus (Raphidocladius) autumnalissp. n. are regarded as new to science and diagnosed based on adult male morphology and DNA barcodes.The species Gymnometriocnemus (Gymnometriocnemus) marionensis Sæther, 1969 is re-established and a key to all Holarctic species is provided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Norwegian University of Science and Technology, NTNU University Museum, Department of Natural History, NO-7491 Trondheim, Norway.

ABSTRACT
Examination of the syntypes of Metriocnemusvolitans Goetghebuer, 1940 revealed that these specimens belong to the genus Chaetocladius and are not con-specific with Gymnometriocnemusvolitans (Goetghebuer, 1940) sensu Brundin (1956) and Sæther (1983). A literature search showed that Gymnometriocnemuskamimegavirgus Sasa & Hirabayashi, 1993 fits well with the species figured and diagnosed by Brundin (1956) as well as with specimens of this species from Norway. We present arguments for Chaetocladiusvolitans (Goetghebuer) comb. n. and for the use of Gymnometriocnemuskamimegavirgus for Gymnometriocnemusvolitans sensu Brundin. In addition, we provide DNA barcode data that indicate the presence of at least seven Gymnometriocnemus species in Norway of which six are collected as male adults. Two of these, Gymnometriocnemus (Gymnometriocnemus) pallidussp. n. and Gymnometriocnemus (Raphidocladius) autumnalissp. n. are regarded as new to science and diagnosed based on adult male morphology and DNA barcodes. The species Gymnometriocnemus (Gymnometriocnemus) marionensis Sæther, 1969 is re-established and a key to all Holarctic species is provided.

No MeSH data available.