Results 151 to 160 of about 806 (171)

Thecagaster charpentieri iranica ssp. nov.—description of the exuviae and the imagines (Odonata: Cordulegastridae)

Zootaxa
A new subspecies Thecagaster charpentieri iranica ssp. nov. is described. It is a large and impressive cordulegastrid restricted to Southeast Iran. This region represents the southeastern limit of the genus Thecagaster Selys, 1854 and of the family ...
Thomas Schneider, O. Müller, D. Ikemeyer, A. Vierstraete, Elias Schneider   +4 more
semanticscholar   +1 more source

The probable larva of Anotogaster gregoryi Fraser, 1923, with new distributional records of the genus from northern Thailand (Odonata: Cordulegastridae).

Zootaxa, 2019
The probable larva of Anotogaster gregoryi Fraser, 1923 is described for the first time by supposition based upon four F-0 larvae collected in the provinces of Loei and Phitsanulok, which are new province records for Anotogaster in Thailand.
R. Novelo-Gutiérrez, R. Sites
semanticscholar   +1 more source

Development of polymorphic microsatellite markers for a rare dragonfly, Cordulegaster sarracenia (Odonata: Cordulegastridae), with notes on population structure and genetic diversity

International Journal of Odonatology, 2018
We isolated and characterized a total of 13 microsatellite loci from Cordulegaster sarracenia (Odonata: Cordulegastridae). Loci were screened in 24 individuals from Louisiana and Texas. Within C.
Kendra Abbott, John C. Abbott, Jeffrey D. Lozier, Rochelle R. Beasley, S. Lance   +4 more
semanticscholar   +1 more source

Verbreitung der Larven der Quelljungfern (Cordulegaster) (Odonata, Cordulegastridae) im Raum Bergisch Gladbach

Decheniana : Verhandlungen des Naturhistorischen Vereins der Rheinlande und Westfalens, 2002
Die dicht besiedelte Stadt Bergisch Gladbach bildet die Übergangszone vom Ballungsraum Rhein-Ruhr zum Bergischen Land. Die Gesamtlänge der 31 Fließgewässer beträgt rund 200 km, wovon rund 30 % verrohrt oder kanalisiert sind. Im Rahmen der jährlichen Untersuchung städtischer Fließgewässer werden seit 1989 im Herbst / Winter an 75 Probestellen chemische ...
Michael Stevens, Horst-Werner Riedel
openaire   +1 more source

Gestreifte Quelljungfer (Cordulegaster bidentata SELYS, 1843) im nördlichen Hunsrück: Erste Ergebnisse unter besonderer Berücksichtigung der Erfassungsmethodik (Odonata: Cordulegastridae)

Decheniana, 2019
Die Gestreifte Quelljungfer (Cordulegaster bidentata) wurde 2016, 2017 und 2018 im nördlichen Hunsrück kartiert. An zehn der zwölf untersuchten Quellen konnten Nachweise der Art erbracht werden.
Patrick Masius
semanticscholar   +1 more source

Cytogenetic report on Cordulegaster brevistigma and Watanabeopetalia atkinsoni (Odonata: Cordulegastridae, Chlorogomphidae)

2019
Live adult male specimens of C. brevistigma and W. atkinsoni have been collected from Shimla, Himachal Pradesh (India). Male germ cell chromosomes of the species are described on the basis of conventional staining, C-banding, silver nitrate staining and sequence specific staining. Both the species possesses 2n = 25m, as a diploid chromosome number and (
Kaur Walia, Gurinder, Singh Chahal, Sarabjit   +1 more
openaire   +1 more source

Morphological variability of Cordulegaster trinacriae in Italy (Odonata: Cordulegastridae)

2019
This paper describes the most helpful features for field identification of C. trinacriae and the relevant morphological variability encountered. In C. trinacriae the yellow frons was without a dark horizontal marking in about 70 % of the sample or showed a barely patterned frons, while the remaining 30 % showed a more or less defined dark smudge ...
openaire   +1 more source

Cordulegaster talaria, n. sp. (Odonata: Cordulegastridae) from west-central Arkansas

2004
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Diet of Octogomphus specularis (Hagen in Selys, 1859) (Odonata: Gomphidae) nymphs in western Oregon, U.S.A. with incidental information on the diet of Cordulegaster dorsalis Hagen in Selys, 1858 (Odonata: Cordulegastridae) nymphs

The Pan-Pacific Entomologist, 2021
Lauren Zatkos, I. Arismendi, W. Gerth
semanticscholar   +1 more source

Further notes on Chinese Cordulegastridae (Insecta: Odonata: Anisoptera)

1994
After the description of new species of Cordulegastridae from China by Zhou (1988) and Zhu & Han (1992), additional specimens have been described by van Pelt (1993) and Lohmann (1993). In this paper additional material of Anotogaster cornutifrons Lohmann, 1993, is reported upon.
openaire   +1 more source