scholarly journals Description of the larvae of Cricotopus festivellus (Kieffer 1906) and Cricotopus diversus (Boesel 1983) with keys to discrimination of larval, pupal and adult stages (Diptera: Chironomidae)

2020 ◽  
pp. 4-16
Author(s):  
Hub Cuppen ◽  
Susan E. Gresens ◽  
David Tempelman
Keyword(s):  
United States ◽  
Water Quality ◽  
Western Europe ◽  
Dna Barcode ◽  
Mean Difference ◽  
Eastern United States ◽  
Adult Males ◽  
Pupal Exuviae ◽  
Rivers And Lakes ◽  
First Time

The larva of two very similar Cricotopus species are described for the first time: Cricotopus diversus (Nearctic) and C. festivellus, new description (West Palaearctic). Confusion can arise depending on the source used for identification of Nearctic Cricotopus. The key of LeSage and Harrison (1980) treated adults and exuviae of C. diversus as variants of C. festivellus. Subsequently Boesel (1983) formally described C. diversus and included it in keys to adult Cricotopus of the eastern United States. Adults of these species have been distinguished by consistent differences in the pigmentation on the fourth and fifth abdominal tergites; we also confirmed differences in the structure of the male hypopygium. Keys to larvae, pupal exuviae and adult males are presented. Publicly available DNA barcode records document C. diversus populations in the Mid-Atlantic US and Ontario, Canada, whereas barcode records of C. festivellus were available only for Scandinavia, although this species is widely distributed in Western Europe. These two species are genetically distinct, with 13% mean difference in barcode sequence between species. Both species are reported from rivers and lakes of relatively good water quality.

scholarly journals A Canadian range extension for Wormslug (Boettgerilla pallens; Gastropoda: Stylommatophora: Boettgerillidae)

2019 ◽  
Vol 132 (3) ◽  
pp. 264-267
Author(s):  
Paul M. Catling ◽  
Brenda Kostiuk
Keyword(s):  
United States ◽  
North America ◽  
Acer Saccharum ◽  
Sugar Maple ◽  
Native Plants ◽  
Soil Surface ◽  
Eastern United States ◽  
Native Soil ◽  
Invasive Spread ◽  
First Time

The introduced Wormslug (Boettgerilla pallens Simroth, 1912) is reported from Quebec, Canada, for the first time, from two closely situated localities in Gatineau Park. It was previously reported from the Vancouver area of British Columbia and, very recently, from Newfoundland. Within the Americas, the species has been reported from northern California, Mexico, and Colombia, and, because it is easily overlooked, likely occurs elsewhere in North America, especially in the eastern United States. In Quebec, it was found in a natural Sugar Maple (Acer saccharum Marshall) woodland and an ornamental garden. Wormslug likely reached both sites with shrub plantings from commercial nurseries, probably quite recently, because the invasive spread of the species, worldwide, has occurred mostly during the last few decades. Although the woodland where it occurred is dominated by native plants, the gastropod fauna there is mainly introduced. Identification, characteristics, and ecology of Wormslug are discussed. The potential for impact on native soil and soil surface organisms, including native terrestrial slugs and snails, is noted.

Revision of the American Pill Millipedes I: Onomeris and Trichomeris (Diplopoda, Glomerida, Glomeridae)

Zootaxa ◽  
2019 ◽  
Vol 2725 (1) ◽  
pp. 28 ◽  
Author(s):  
THOMAS WESENER
Keyword(s):  
United States ◽  
North Carolina ◽  
Electron Micrographs ◽  
Distribution Data ◽  
Scanning Electron Micrographs ◽  
Eastern United States ◽  
Mountainous Areas ◽  
Cumberland Plateau ◽  
First Time ◽  
Scanning Electron

The unique characters which distinguish Trichomeris Loomis, 1943 from Onomeris Cook, 1896 are based on erroneous drawings and not actual differences. Trichomeris is a junior synonym of Onomeris. All three species of Onomeris, O. sinuata (Loomis), 1943, O. underwoodi Cook, 1896 and O. australora Hoffman, 1950 are redescribed, based on their holotypes, as well as additional specimens. Scanning electron micrographs are presented for the first time for an American member of the order Glomerida. A key to the three species of Onomeris is provided. The available distribution data for Onomeris is still rudimentary, but the distribution areas of the three species are Cumberland Plateau from NW Alabama to Virginia for O. sinuata n. comb., lowland areas from Mississippi to Georgia for O. underwoodi, mountainous areas of Tennessee, Georgia and North Carolina for O. australora. Additional Onomeris species can potentially be discovered in the eastern United States.

scholarly journals Polyploidy: a factor in the evolution of Dicerandra Benth. (Labiatae)

1997 ◽  
Vol 54 (2) ◽  
pp. 217-229 ◽  
Author(s):  
R. B. Huck ◽  
H. L. Chambers
Keyword(s):  
United States ◽  
Base Number ◽  
Eastern United States ◽  
The South ◽  
Chromosome Counts ◽  
South Eastern ◽  
Conservation Implications ◽  
First Time

Chromosome counts are reported for the first time in Dicerandra Benth. (Labiatae), a genus endemic to the south-eastern United States. Representative taxa are tetraploid (n = 16) and hexaploid (n = 24). Diploids were not found. The systematic, phytogeographic and conservation implications of polyploidy in this genus are discussed. The monophyletic nature of the genus is upheld by the discovery that both sections have a presumed base number of x = 8. Hexaploidy has apparently evolved independently in all branches of sect. Dicerandra, but not in sect. Lecontea.

scholarly journals First report of Squash Vine Borer, Melittia cucurbitae (Harris, 1828) (Lepidoptera, Sessidae) in Brazil and South America: distribution extension and geographic distribution map

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1625 ◽  
Author(s):  
Diones Krinski
Keyword(s):  
United States ◽  
South America ◽  
First Record ◽  
Eastern United States ◽  
Distribution Map ◽  
Important Pest ◽  
Melittia Cucurbitae ◽  
Southwest Region ◽  
First Time ◽  
Squash Vine Borer

Melittia cucurbitae (Harris, 1828) is a very important pest of squash and pumpkins. To date, this lepidopteran had its distribution reported for eastern United States, southeastern Canada, and Mexico. Our study reports for the first time the occurrence of squash vine borer, M. cucurbitae for South America, being the first record to Brazil, in southwest region of Pará state.

Blastomyces dermatitidis

2012 ◽  
pp. 164-167
Author(s):  
Janis E Blair
Keyword(s):  
United States ◽  
Histoplasma Capsulatum ◽  
Southeastern United States ◽  
Fungal Growth ◽  
Blastomyces Dermatitidis ◽  
Ohio River ◽  
Recreational Water ◽  
Eastern United States ◽  
Rivers And Lakes ◽  
River Valleys

Blastomyces dermatitidis is a fungus endemic in the central and eastern United States. It is coendemic with Histoplasma capsulatum in much of the central and southeastern United States, including the Mississippi and Ohio river valleys. Distribution of B dermatitidis extends farther north and west than H capsulatum and includes northern Wisconsin, Minnesota, Ontario, and Manitoba. Fungal growth occurs in nitrogen-rich soils close to streams, rivers, and lakes. Many outbreaks of blastomycosis occur within 100 meters of recreational water. Infection can be asymptomatic or can cause flulike symptoms, pneumonia, or skin, bone or CNS manifestations. Diagnosis and treatment are also reviewed.

THE THREE RANATRAS OF THE NORTH-EASTERN UNITED STATES

1905 ◽  
Vol 37 (5) ◽  
pp. 187-188
Author(s):  
J. R. De La Torre Bueno
Keyword(s):  
United States ◽  
New York ◽  
New York State ◽  
Eastern United States ◽  
York State ◽  
The North ◽  
North Eastern ◽  
First Time

Several entomologists have discussed with me the question of the distinguishing characters of Ranatra quadridentata, Stal, and Ranatra fusca, Pal. Beauv., and in consequence I venture to set forth here briefly and plainly the differences between these two and Ranatra kirkaldyi, n. sp, which I took for the first time in New York State.

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