nearctic region
Recently Published Documents


TOTAL DOCUMENTS

235
(FIVE YEARS 37)

H-INDEX

14
(FIVE YEARS 2)

Zootaxa ◽  
2021 ◽  
Vol 5084 (1) ◽  
pp. 1-131
Author(s):  
GEORGE MELIKA ◽  
JAMES A. NICHOLLS ◽  
WARREN G. ABRAHAMSON ◽  
EILEEN A. BUSS ◽  
GRAHAM N. STONE

Twenty nine new species of cynipid oak gall wasps from the Nearctic region (America north of Mexico) are described: Andricus archboldi Melika & Abrahamson, sp. nov., A. catalinensis Melika, Nicholls & Stone, sp. nov., A. chapmanii Melika & Abrahamson, sp. nov., A. chiricahuensis Melika, Nicholls & Stone, sp. nov., A. coconinoensis Melika, Nicholls & Stone, sp. nov., A. columbiensis Melika, Nicholls & Stone, sp. nov., A. cooki Melika, Nicholls & Stone, sp. nov., A. fitzpatricki Melika & Abrahamson, sp. nov., A. highlandensis Melika, Nicholls & Stone, sp. nov., A. mellificus Nicholls, Stone & Melika, sp. nov., A. menkei Melika & Abrahamson, sp. nov., A. mogollonensis Melika, Nicholls & Stone, sp. nov., A. nichollsi Melika & Stone, sp. nov., A. schickae Nicholls, Melika & Stone, sp. nov., A. torreyaensis Melika & Abrahamson, sp. nov., A. williami Melika, Nicholls & Stone, sp. nov., Antron lovellae Melika, Nicholls & Stone, sp. nov., A.tomkursari Melika, Nicholls & Stone, sp. nov., Dryocosmus archboldi Melika & Abrahamson, sp. nov., Loxaulus virginianae Melika & Buss, sp. nov., Neuroterus alexandrae Nicholls & Melika, sp. nov., N. aliceae Melika, Nicholls & Stone, sp. nov., N. bussae Melika & Nicholls, sp. nov., N. oblongifoliae Nicholls, Stone & Melika, sp. nov., N. quaili Melika, Nicholls & Stone, sp. nov., N. rosieae Melika, Nicholls & Stone, sp. nov., N. stonei Melika & Nicholls, sp. nov., Zapatella abrahamsoni Melika, sp. nov., Z. brooksvillei Melika & Abrahamson, sp. nov.. Alternate asexual and sexual generations are described for four species, Andricus archboldi Melika & Abrahamson, sp. nov., A. fitzpatricki Melika & Abrahamson, sp. nov., A. schickae Nicholls, Melika & Stone, sp. nov., Neuroterus aliceae Melika, Nicholls & Stone, sp. nov.. Descriptions, diagnoses, plus information on biology and host associations are given for all new species. All taxa are supported by morphological data; matching of generations is established using DNA sequence data. We also demonstrate that Neuroterus niger var. alimas Kinsey should be considered as a nomen dubium.  


Zootaxa ◽  
2021 ◽  
Vol 2291 (1) ◽  
Author(s):  
ANALÍA R. DÍAZ ◽  
ESTELA C. LOPRETTO

Cypriconcha hypsophila n. sp. is described and illustrated from high-altitude freshwater bodies within the Argentine province of Catamarca, which represents the first record of this genus in South America. This paper also presents a taxonomical key for identification of all species within the genus. Some comments concerning how this particular species could have spread from the high mountains from the Nearctic region to those of the northwestern Andes are provided.


Zootaxa ◽  
2021 ◽  
Vol 5071 (2) ◽  
pp. 223-241
Author(s):  
BRANDON CLARIDGE

The genus Jethsura Cameron is revised. Jethsura euthenia sp. nov., Jethsura gondawindua sp. nov., and Jethsura serpentina sp. nov. are newly described from Colombia, and Jethsura rubricauda sp. nov. is described from Mexico. Jethsura pyriformis (Provancher) from the Nearctic region is redescribed. Species images, distribution maps and an illustrated key is provided.  


Zootaxa ◽  
2021 ◽  
Vol 5047 (2) ◽  
pp. 177-191
Author(s):  
VEZIO COTTARELLI ◽  
MARIA CRISTINA BRUNO

We describe a new harpacticoid, Stammericaris remotaepatriae sp. nov., collected from the hyporheic habitat of a stream in Nantucket, MA, USA. The new species is characterized by the size of the caudal rami of both sexes, which are shorter than the anal somite, by the morphology and armature of the P3 and, mainly, by the P4 endopod of males, represented by a curved plate with a strongly bifid tip, the distal proximal outgrowth of the distal margin spiniform and denticled, the proximal outgrowth missing. The study of the new species allowed us to review the systematic position of Parastenocaris palmerae Reid, 1992, which we transferred to Stammericaris Jakobi, 1972 as Stammericaris palmerae (Reid, 1992) comb. nov., based mainly on the structure of the male P4 endopod complex and the setation of the caudal rami. We also discussed the taxonomic position and affinities of Parastenocaris trichelata Reid, 1955, suggesting that this species is related to the two former ones for a set of diagnostic features, but can not be attributed to the genus due to the peculiar morphology of the male P4 endopod complex; P. trichelata is therefore considered species inquirenda. We also discussed Parastenocaris sp. 1 and Parastenocaris sp. 3, two taxa only partially described and drawn in Strayer (1988). In fact, Parastenocaris sp. 1 can be related to Stammericaris and might represent a third species of the genus in the Nearctic region. Remarkably, the structure of the male P4 endopod of Parastenocaris sp. 3 is typical of Proserpinicaris Jakobi, 1972; this hypothetical assignment of the species to Proserpinicaris, if confirmed, would be of relevant taxonomic and biogeographic value. Finally, we provide an updated distribution map of the genus Stammericaris and brief remarks on the faunistic and ecological characteristics of the taxa presented and discussed in this paper.  


Zootaxa ◽  
2021 ◽  
Vol 5040 (2) ◽  
pp. 283-288
Author(s):  
XIN ZHAO ◽  
DANDAN FENG ◽  
YUNTAO LI ◽  
HAOYU LIU

Based on the geographic distribution database of the Orthoptera Species File, the diversity and distribution of the superfamily Grylloidea in the Nearctic region was studied using the statistics and Sorensen dissimilarity coefficient. A total of 164 species or subspecies belonging to 4 families, 9 subfamilies and 27 genera were recorded from this region; among which Gryllidae (93, 56.70%), followed by Trigonidiidae (44, 26.83%), Mogoplistidae (25, 15.24%), and Phalangopsidae (2, 1.22%). The diversity exhibits an asymmetric distribution pattern, with the southeastern coastal plain, the Interior Plateau and Piedmont of the United States was the most abundant. At the same time, the regional similarity of species distribution was analyzed, and the Nearctic was divided into four subregions: Boreal & Arctic zone of North America, Eastern temperate North America, Northeast temperate North America, and Southern North America & western temperate North America.  


Zootaxa ◽  
2021 ◽  
Vol 5027 (3) ◽  
pp. 351-375
Author(s):  
TANIA ESCALANTE ◽  
GERARDO RODRÍGUEZ-TAPIA ◽  
JUAN J. MORRONE

We provide a preliminary nomenclatural proposal and a digital map of the Nearctic region, based on published regionalizations, especially Dice (1943), and applying the International Code of Area Nomenclature. The Nearctic region is comprised of three subregions (one of them with two dominions), one transition zone and 29 provinces. The Arctic subregion, in northern North America and Greenland, includes the Eskimoan, Hudsonian, Aleutian and Sitkan provinces. The Western subregion, in western North America, includes the Californian dominion, with the Californian and Oregonian provinces; and the Rocky Mountain dominion, including the Montanian, Saskatchewan, Palusian, Artemisian, Coloradan, Kansan, Mohavian, Navahonian, Sonoran, Chihuahuan, Comanche, and Baja California provinces. The Alleghany subregion, in eastern North America, includes the Illinoian, Canadian, Carolinian, Texan, Austroriparian, and Tamaulipan provinces. The Mexican Transition Zone, situated in the area of overlap with the Neotropical region, includes the Sierra Madre Occidental, Sierra Madre Oriental, Transmexican Volcanic Belt, Sierra Madre del Sur and Chiapas Highlands provinces.  


2021 ◽  
Vol 85 ◽  
pp. 57-79
Author(s):  
Brandon Claridge

The Nearctic species of Heterischnus Wesmael are revised. Redescriptions are provided of the three known species, H. bicolorator, H. huardi and H. coloradensis. Heterischnus mexicanussp. nov. is newly described and H. bicolorator is recorded for the first time from the Nearctic region. The first key to the Nearctic species is provided along with species images and distribution maps.


Zootaxa ◽  
2021 ◽  
Vol 4999 (6) ◽  
pp. 501-533
Author(s):  
JOSEPH BENZEL ◽  
DONALD E. BRIGHT

The North American species of the broad-nosed weevil genus Pachyrhinus Schönherr 1823 (Coleoptera: Curculionidae, Entiminae) are revised. Three species of Pachyrhinus are here recognized in North America: P. elegans (Couper 1865), P. californicus (Horn 1876), and P. cinereus (Casey 1888). Pachyrhinus lateralis (Casey 1888) and P. miscix (Fall 1901) are here designated as synonyms of P. elegans. Pachyrhinus crassicornis (Casey 1888) and P. albidus (Fall 1901) are here designated synonyms of P. cinereus (Casey 1888) The previously proposed synonymy of P. ferrugineus (Casey 1888) with P. californicus was confirmed. This revision includes detailed images of diagnostic characters as well as scanning electron micrographs of scale morphology for all species. A key to the Nearctic species of Pachyrhinus is provided. All Nearctic species of Pachyrhinus are considered minor pests of Pinus spp. [Pinaceae].


2021 ◽  
pp. 101-298
Author(s):  
Bernhard J. van Vondel

The Haliplidae of the Nearctic region are revised. The generic and subgeneric division as proposed by Vondel is accepted here. The subgenus Paraliaphlus Guignot, 1930 is redefined. One species is described as new: Peltodytes roughleyi sp. n. Haliplus ohioensis Wallis, 1933, H. ungularis Wallis, 1933 and H. canadensis Wallis, 1933 are established as junior synonyms of H. annulatus Roberts, 1913, H. cylindricus Roberts, 1913 and H. nitens LeConte, 1850, respectively. Peltodytes lengi Roberts, 1913 is established as junior synonym of P. duodecimpunctatus (Say, 1823). P. mexicanus (Wehncke, 1883) and P. dispersus Roberts, 1913 are both established as junior synonyms of P. simplex (LeConte, 1852). Lectotypes are designated for Haliplus blanchardi Roberts, 1913, H.  Roberts, 1913, H. cylindricus Roberts, 1913, H. fasciatus Aubé, 1838, H. gracilis Roberts, 1913, H. leopardus Roberts, 1913, H. pantherinus Aubé, 1838, Peltodytes dispersus Roberts, 1913, P. duodecimpunctatus (Say, 1823), P. festivus (Wehncke, 1876), P. oppositus Roberts, 1913, P. sexmaculatus Roberts, 1913, P. shermani Roberts, 1913 and P. tortulosus Roberts, 1913. All species are illustrated and (re)described. A key to the Nearctic species is provided, as well as distribution maps.


2021 ◽  
Vol 82 ◽  
pp. 69-138
Author(s):  
John Huber ◽  
Andrew M Bennett ◽  
Gary Gibson ◽  
Y. Miles Zhang ◽  
Chris Darling

A checklist of 1246 extant, described species, classified in 346 genera in 18 families of Chalcidoidea (Hymenoptera) are reported from Canada, Alaska (USA) and Greenland (Denmark) based on examined specimens and published records up to December 31, 2020. Of the reported species, 1214 (in 345 genera in 18 families) are listed from Canada, 113 (in 58 genera in 10 families) from Alaska, and 26 (in 22 genera in 4 families) from Greenland. The list includes 235 new species records and 53 new generic records for Canada (no new family records). Forty-one new species records, 22 new generic records and the families Chalcididae and Eurytomidae are newly reported for Alaska. No new records were found for Greenland. Two species (in one genus) of Mymarommatoidea are reported from Canada. For each species in Canada, distribution is tabulated by province or territory, except the province of Newfoundland and Labrador is divided into the island of Newfoundland and the region of Labrador. The inclusion of known species from Alaska and Greenland results in the first comprehensive distributional checklist for the entire northern part of the Nearctic region. A brief review of the history of cataloguing Chalcidoidea in North America and a comparison of this checklist with four published checklists from the Palaearctic region is provided.


Sign in / Sign up

Export Citation Format

Share Document