111 research outputs found
First American records of Aphis Intybi (Hemiptera: Aphididae) with notes on two other related adventive species in Argentina
P.1154-1162Aphis intybi Koch is recorded for the first time in North and South America. Measurements
for the identification of this species in comparison with Aphis craccivora Koch are given.
Aphis cytisorum Hartig is recorded for the third time in Argentina. Data on morphological
variation, geographical distribution, and host plants of these species in Argentina are provided.
Their morphological identification is supported by comparison of DNA sequences of
the mitochondrial cytochrome oxidase subunit 1 (DNA barcode) and subunit 2.S
Thysanoptera of Canada
The known Canadian Thysanoptera fauna currently consists of 147 species, including 28 non-native species, and there are five additional species found only indoors. DNA barcoding data, presence of species in adjacent regions, and preliminary evidence of the presence of host-associated cryptic species suggest that there may be as many as 255 additional species awaiting discovery or description in Canada
History of the balsam woolly adelgid, Adelges piceae (Ratzeburg), in British Columbia with notes on a recent range expansion
The balsam woolly adelgid, Adelges piceae (Hemiptera: Adelgidae) was introduced from Europe into eastern North America around 1900 and independently into western North America sometime before 1928. It was first detected causing damage in North Vancouver, British Columbia in 1958. Since that time it has slowly spread to adjacent areas of southwestern BC. Surveys from 2011 to 2013 confirmed the presence of A. piceae in the Cascades Forest District and in the town of Rossland, BC, which are outside the pre-2014 quarantine area. Until these recent detections, provincial quarantineregulations have been the principle tool employed to prevent anthropogenic spread of the adelgid through the restriction of movement of potentially infested seedlings and nursery stock from infested coastal regions of British Columbia into the highly susceptible high elevation Abies lasiocarpa stands in the interior forests. We provide a historical overview of the quarantine regulations enacted since 1966; review the distribution of Adelges piceae since the first confirmed records of establishment as documented by historical survey records; and document the extent of recent survey efforts and new detections in interior subalpine fir forests
Barcoding Bugs: DNA-Based Identification of the True Bugs (Insecta: Hemiptera: Heteroptera)
oxidase I (COI) gene, has been shown to provide an efficient method for the identification of species in a wide range of animal taxa. In order to assess the effectiveness of barcodes in the discrimination of Heteroptera, we examined 344 species belonging to 178 genera, drawn from specimens in the Canadian National Collection of Insects.Analysis of the COI gene revealed less than 2% intra-specific divergence in 90% of the taxa examined, while minimum interspecific distances exceeded 3% in 77% of congeneric species pairs. Instances where barcodes fail to distinguish species represented clusters of morphologically similar species, except one case of barcode identity between species in different genera. Several instances of deep intraspecific divergence were detected suggesting possible cryptic species.Although this analysis encompasses 0.8% of the described global fauna, our results indicate that DNA barcodes will aid the identification of Heteroptera. This advance will be useful in pest management, regulatory and environmental applications and will also reveal species that require further taxonomic research
Chirothrips productus Hood
<i>Chirothrips productus</i> Hood <p> <i>Chirothrips productus</i> Hood 1927b: 126.</p> <p> <b>Distribution</b>: United States (AZ, CO, ID, ND, NM, NV, UT) (Jacot-Guillarmod 1971; Huntsinger & Balsbaugh 1982).</p>Published as part of <i>Nakahara, Sueo & Foottit, Robert G., 2012, Review of Chirothrips and related genera (Thysanoptera: Thripidae) of the Americas, with descriptions of one new genus and four new species, pp. 1-29 in Zootaxa 3251</i> on page 18, DOI: <a href="http://zenodo.org/record/213299">10.5281/zenodo.213299</a>
Arorathrips oneillae Watts, comb.n.
<i>Arorathrips oneillae</i> (Watts) comb.n. <p> <i>Chirothrips oneillae</i> Watts 1972: 589.</p> <p> <b>Distribution</b>: United States (AR, SC).</p> <p> <b>Comments</b>: This species has many short, stout setae on the head, pronotum and venter of meso- and metasternum, and a few setae on the basantra.</p>Published as part of <i>Nakahara, Sueo & Foottit, Robert G., 2012, Review of Chirothrips and related genera (Thysanoptera: Thripidae) of the Americas, with descriptions of one new genus and four new species, pp. 1-29 in Zootaxa 3251</i> on page 9, DOI: <a href="http://zenodo.org/record/213299">10.5281/zenodo.213299</a>
Arorathrips nigriceps Hood
<i>Arorathrips nigriceps</i> (Hood) <p> <i>Chirothrips nigriceps</i> Hood 1952: 147.</p> <p> <i>Arorathrips nigriceps</i> (Hood); Mound and Marullo 1996: 94.</p> <p> <b>Distribution</b>: Brazil.</p> <p> <b>Comments</b>: This species is known only from the holotype and one female paratype. Antennal segment II is strongly angulate with rather straight anterior margin and resembles those of some <i>Chirothrips</i> species. The invaginations of the mesosternal furca are barely separated by about 7 µm. Abdominal sternites have tuberculate scallops and low lobes on posterior margin. The head is brown, pronotum is yellow with a medial pale brown longitudinal area, pterothorax is shaded light brown, abdomen and legs are yellow, and fore wing is light brown with pale base.</p>Published as part of <i>Nakahara, Sueo & Foottit, Robert G., 2012, Review of Chirothrips and related genera (Thysanoptera: Thripidae) of the Americas, with descriptions of one new genus and four new species, pp. 1-29 in Zootaxa 3251</i> on page 9, DOI: <a href="http://zenodo.org/record/213299">10.5281/zenodo.213299</a>
Chirothrips alexanderae Stannard
<i>Chirothrips alexanderae</i> Stannard <p> <i>Chirothrips alexanderae</i> Stannard 1959: 65</p> <p> <b>Distribution</b>: Canada (AB), United States (CO, NB, ND, SD) (zur Strassen 1974)</p>Published as part of <i>Nakahara, Sueo & Foottit, Robert G., 2012, Review of Chirothrips and related genera (Thysanoptera: Thripidae) of the Americas, with descriptions of one new genus and four new species, pp. 1-29 in Zootaxa 3251</i> on page 16, DOI: <a href="http://zenodo.org/record/213299">10.5281/zenodo.213299</a>
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