Taxonomic Studies on the Hydras of North America. III. Rediscovery of Hydra carnea L. Agassiz (1850) with a Description of Its Characters

1931 ◽  
Vol 50 (1) ◽  
pp. 20 ◽  
Author(s):  
Libbie H. Hyman
Keyword(s):  
North America ◽  
Hydra Carnea ◽  
Taxonomic Studies

scholarly journals Integrative taxonomy of Nearctic and Palaearctic Aleocharinae: new species, synonymies, and records (Coleoptera, Staphylinidae)

ZooKeys ◽  
2021 ◽  
Vol 1041 ◽  
pp. 27-99
Author(s):  
Adam J. Brunke ◽  
Mikko Pentinsaari ◽  
Jan Klimaszewski
Keyword(s):  
New Species ◽  
North America ◽  
Dna Barcode ◽  
Integrative Taxonomy ◽  
Eastern Canada ◽  
Rove Beetles ◽  
Adventive Species ◽  
The Status ◽  
Taxonomic Studies ◽  
Holarctic Species

A long tradition of separate Nearctic and Palaearctic taxonomic studies of the diverse aleocharine rove beetles (Coleoptera: Staphylinidae) has obscured the recognition of Holarctic species and detection of adventive species in both regions. Recently, integrated study of the two regions through detailed morphological comparisons and development of an authoritatively identified DNA barcode reference library has revealed the degree to which these two aleocharine faunas are interconnected, both naturally and through human activity. Here this approach is adopted to recognize new species, reveal Holarctic species, and recognize adventive species in both North America and Europe. The following new species are described: Isoglossa triangularis Klimaszewski, Brunke & Pentinsaari, sp. nov. from British Columbia; Gnypeta impressicollis Klimaszewski, Brunke & Pentinsaari, sp. nov., from Ontario, Maryland and North Carolina; Aloconota pseudogregaria Klimaszewski, Brunke & Pentinsaari, sp. nov., from Ontario and Virginia; and Philhygra pseudolaevicollis Klimaszewski, Brunke & Pentinsaari, sp. nov. from eastern Canada. Dasygnypeta velata and Philhygra angusticauda are revealed to be Holarctic species, resulting in the following synonymies: Dasygnypeta velata (Erichson, 1839) = Gnypeta minuta Klimaszewski & Webster, 2008, syn. nov. and Philhygra angusticauda (Bernhauer, 1909) = Atheta (Philhygra) pinegensis Muona, 1983, syn. nov. The Nearctic species Hylota ochracea (and genus Hylota), Thecturota tenuissima, and Trichiusa robustula are newly reported from the Palaearctic region as adventive, resulting in the following synonymies: Hylota ochracea Casey, 1906 = Stichoglossa (Dexiogyia) forticornis Strand, 1939, syn. nov.; Thecturota tenuissima Casey, 1893 = Atheta marchii Dodero, 1922, syn. nov.; and Trichiusa robustula Casey, 1893 = T. immigrata Lohse, 1984, syn. nov. The Palaearctic species Amarochara forticornis, Anomognathus cuspidatus, Oligota pumilio, and Parocyusa rubicunda are newly confirmed from the Nearctic region as adventive, resulting in the following synonymies: Parocyusa rubicunda (Erichson, 1837) = Chilopora americana Casey, 1906, syn. nov. and Anomognathus cuspidatus (Erichson, 1839) = Thectura americana Casey, 1893, syn. nov. The genus Dasygnypeta, sensu nov. is newly reported from North America, Paradilacra is newly reported from eastern North America, and Haploglossa is newly reported from Canada, resulting in the following synonymy: Paradilacra densissima (Bernhauer, 1909) = Gnypeta saccharina Klimaszewski & Webster, 2008, syn. nov. Native Cyphea wallisi is newly reported from across Canada and C. curtula is removed from the Nearctic fauna. The status of both Gyrophaena affinis and Homalota plana is uncertain but these species are no longer considered to be adventive in North America. Three new combinations are proposed: Dasygnypeta baranowskii (Klimaszewski, 2020) and D. nigrella (LeConte, 1863) (both from Gnypeta) and Mocyta scopula (Casey, 1893) (from Acrotona). Dolosota Casey, 1910, syn. nov. (type species Eurypronota scopula Casey), currently a subgenus of Acrotona, is therefore synonymized with Mocyta Mulsant & Rey, 1874. Additionally, four new Canadian records and 18 new provincial and state records are reported.

Taxonomic studies on the genus Atrichum in North America

1969 ◽  
Vol 47 (3) ◽  
pp. 353-368 ◽  
Author(s):  
Robert R. Ireland
Keyword(s):  
United States ◽  
North America ◽  
North American ◽  
Distinct Species ◽  
The United States ◽  
Morphological Characters ◽  
Taxonomic Study ◽  
Chromosome Counts ◽  
The Status ◽  
Taxonomic Studies

A taxonomic study was made of several North American taxa in the genus Atrichum. The primary emphasis was on the Canadian taxa and a key to the six species (A. altecristatum, A. angustatum, A. crispum, A. oerstedianum, A. selwynii, A. undulatum) and one variety (A. undulatum var. gracilisetum) of the country is presented. Atrichum oerstedianum, which has been confused with A. undulatum, is added to the moss flora of the United States and Canada. The distribution of A. crispum is clarified and a detailed study of the species revealed new morphological characters that are useful to distinguish it. A variety of A. undulatum, the var. altecristatum, is raised to the rank of a species and morphological and distributional data are given to support the status of A. selwynii as a distinct species. The first chromosome counts are reported for A. selwynii (n = 7) and A. altecristatum (n = 14). Detailed descriptions are provided for A. altecristatum, A. crispum, A. oerstedianum, and A. selwynii.

Numerical Taxonomic Studies on North America Lady Ferns and Their Allies

1975 ◽  
Vol 65 (3) ◽  
pp. 75
Author(s):  
David B. Lellinger ◽  
Fah-Seong Liew
Keyword(s):  
North America ◽  
Taxonomic Studies

scholarly journals Erroneous records of Aleochara bipustulata from North America: an assessment of the evidence

2005 ◽  
Vol 137 (2) ◽  
pp. 182-187 ◽  
Author(s):  
K.S. Hemachandra ◽  
N.J. Holliday ◽  
J. Klimaszewski ◽  
P.G. Mason ◽  
U. Kuhlmann
Keyword(s):  
North America ◽  
Classical Biological Control ◽  
Delia Radicum ◽  
Museum Specimens ◽  
Canadian Prairie ◽  
Aleochara Bilineata ◽  
Palearctic Species ◽  
Cabbage Root Maggot ◽  
Taxonomic Studies ◽  
Root Maggot

AbstractAleochara bipustulata (L., 1761) (Coleoptera: Staphylinidae) is a Palearctic species and a natural enemy of the cabbage root maggot, Delia radicum (L., 1758) (Diptera: Anthomyiidae). It has been identified as a candidate for introduction to Canada for classical biological control of D. radicum. Recent taxonomic studies assert that A. bipustulata is absent from the Nearctic; however, there are numerous publications reporting the presence of the species in North America. We examined voucher material relating to these publications and additional museum specimens labeled as A. bipustulata. In addition, we reared Aleochara spp. from D. radicum puparia collected in the Canadian prairie provinces. Specimens that, based on external anatomy, could be A. bipustulata were definitively identified using characters of the genitalia. All of the 141 museum specimens labeled A. bipustulata were found to be Aleochara verna Say, 1836. A total of 811 individuals of Aleochara spp. were reared from D. radicum puparia; of these, 690 were Aleochara bilineata Gyllenhal, 1810, 121 were A. verna, and none were A. bipustulata. We have found no evidence that A. bipustulata occurs in North America.

The taxonomic status of Vaccinium boreale

1977 ◽  
Vol 55 (3) ◽  
pp. 281-288 ◽  
Author(s):  
S. P. Vander Kloet
Keyword(s):  
North America ◽  
Taxonomic Status ◽  
Leaf Margin ◽  
Northeastern North America ◽  
Natural Hybrids ◽  
Taxonomic Studies

Two hundred and fourteen specimens of Vaccinium subgen. Cyanococcns were collected from 40 sites in northeastern North America for taxonomic studies. Data collected using various techniques indicate that V. boreale Hall & Aalders should be recognized as a species. Three characters, viz. dimension, pubescence, and leaf margin, separate V. boreale from V. angustifolium and V. myrtilloides. Although the three species are sympatric, only a few natural hybrids between V. boreale and V. myrtilloides have been found among the collected material. Crossing trials between V. boreale and V. pallidum suggest that the two are probable ancestors of V. angustifolium.

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