Two New Species of Aphids from Eastern Boreal and Arctic Canada (Homoptera: Aphididae)

1961 ◽  
Vol 93 (7) ◽  
pp. 497-501 ◽  
Author(s):  
W. R. Richards

This paper includes descriptions of a new species of Iziphya Nevsky and one of Euschizaphis Hille Ris Lambers. The former genus is well represented in North America, but Euschizaphis, which is best known for its association with the Juncaginaceae, has not been previously recorded from the western hemisphere.Iziphya punctatella, new speciesApterous Viviparous Female.–Colour when alive: Ground colour of head and body yellow with black spots around the bases of most of the setae (Fig. 4). Antennae dark except for the basal half of segment III which is yellow; apex of rostrum dark; legs black except apical two-thirds of tibiae which are colourless. Colour when macerated: Essentially as when alive, but yellow areas colourless or nearly so.

Zootaxa ◽  
2010 ◽  
Vol 2446 (1) ◽  
pp. 55 ◽  
Author(s):  
ROWLAND M. SHELLEY ◽  
CASEY H. RICHART ◽  
ARTHUR E. BOGAN

The milliped family Hirudisomatidae (Polyzoniida) comprises two genera in the Western Hemisphere and North America – Octoglena Wood, 1864, and Mexiconium Shelley, 1996 – and seven species, one being a new species from Idaho, the first hirudisomatid from the western interior, represented solely by an adult male. It is unique in its banded color pattern, recumbent gonopodal orientation in situ, upright anterior gonopod podomeres relative to the sternum, and the calyx configuration of the ultimate article. Despite these features, provisional assignment to Octoglena is warranted pending more material and review of all familial components under high magnification, preferably SEM. A full description is provided for O. claraqua, n. sp., along with a key to familial components in the Western Hemisphere, new locality records, and a distribution map.


1983 ◽  
Vol 115 (10) ◽  
pp. 1433-1436 ◽  
Author(s):  
Ian M. Smith

AbstractAdults of Cyclothyas siskiyouensis n. sp., the first species of the genus reported from the Western Hemisphere, are described from female specimens collected from a small stream in Oregon, U.S.A. Members of this species differ from those of previously described species in having 3, rather than numerous, pairs of genital acetabula along outer edges of the genital flaps. A revised diagnosis of the genus Cyclothyas is presented.


1991 ◽  
Vol 123 (4) ◽  
pp. 777-793 ◽  
Author(s):  
Lubomir Masner

AbstractThe Nearctic species of the genus Duta are revised. Two new species are described: D. foveolata (Canada, USA) and D. policeps (Canada, USA). Duta virginiensis (Ashmead), new combination, is shown to be widely distributed in the Western Hemisphere, extending to the New World tropics. A diagnosis of Duta and a key to the Nearctic species are given. The impact of environmental degradation on the frequency of Duta species in North America is discussed.


2009 ◽  
Vol 46 (7) ◽  
pp. 557-570 ◽  
Author(s):  
Alison M. Murray ◽  
Stephen L. Cumbaa ◽  
C. Richard Harington ◽  
Gerald R. Smith ◽  
Natalia Rybczynski

Percid remains from Pliocene deposits on Ellesmere Island, Arctic Canada, are identified as a species of Sander , similar to the walleye and sauger of North America and the pike–perch of Europe and western Asia. They are named as a new species, Sander teneri . These remains are the most northerly percid elements found to date and suggest the palaeoenvironment was significantly warmer in the Pliocene than it is currently. The fossil remains show the presence in North America of the family Percidae as well as the genus Sander prior to the Pleistocene, indicating a previously proposed Pleistocene immigration from Europe or Asia can be discounted. These fossils contradict an earlier hypothesis that percids, in particular Sander, crossed from Eurasia to North America in the Pleistocene; instead, the fossils show percids were already in the area by the Pliocene.


1990 ◽  
Vol 68 (2) ◽  
pp. 389-390 ◽  
Author(s):  
William B. Muchmore

Many terrestrial arthropods have been reported from arctic regions of North America, but until now, no named pseudoscorpion has been recorded north of latitude 62°. A new species, Wyochernes arcticus, is described from the Yukon Territory at 69°10′N.


1989 ◽  
Vol 26 (7) ◽  
pp. 1501-1503 ◽  
Author(s):  
John S. Peel

The helcionellacean mollusc Eotebenna Runnegar and Jell, 1976 is described from the Lower Cambrian Henson Gletscher Formation of central North Greenland, part of the Franklinian Basin sequence of Arctic Canada and adjacent northern Greenland. The Henson Gletscher Formation specimens of Eotebenna are the first Lower Cambrian and North American records of a genus originally described from the Middle Cambrian of Australia. A new species, Eotebenna arctica, is described.


2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.


Zootaxa ◽  
2021 ◽  
Vol 4966 (1) ◽  
pp. 41-53
Author(s):  
ALEXANDER A. KHAUSTOV ◽  
ALEXANDER V. PETROV ◽  
VASILIY B. KOLESNIKOV

A new genus and species, Unguitarsonemus paradoxus n. gen., n. sp. and a new species, Pseudotarsonemoides peruviensis n. sp. (Acari: Trombidiformes: Tarsonemidae), are described based on phoretic females collected on bark beetles Phloeotribus pilula and Ph. biguttatus, respectively, from Peru. A key to species of the genus Pseudotarsonemoides is provided. 


Zootaxa ◽  
2017 ◽  
Vol 4294 (3) ◽  
pp. 361 ◽  
Author(s):  
JING SUN ◽  
WEIJIAN HUANG ◽  
YALIN ZHANG

Elongationa gen. nov., a new leafhopper genus (Hemiptera: Cicadellidae: Ledrinae) with one new species, E. hyalina sp. nov., is described and illustrated in detail. A checklist and key to species in the genus Midoria are provided including a new species, Midoria curvidentata sp. nov., described in this paper.  


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