Corresponding author: Adam J. Brunke (
Academic editor: Volker Assing
The rove beetles of northeastern North America, defined here as a region from Ontario eastward and south to Virginia, are well known faunistically compared to other regions of the world, with the exception of the western Palaearctic. For the large subfamilies
Although the University of Guelph Insect Collection (DEBU) is Canada’s third or fourth largest collection of invertebrates, relatively few of its staphylinid specimens were considered in the course of the above-mentioned revisions. We assume this oversight was due to the collection’s reputation for its coverage of Nearctic and Neotropical
Specimens were examined with a WILD Heerbrugg M5A stereomicroscope and dissections of male genitalia and genital segments of both sexes were performed in distilled water after preparation following
As the genus
Dorsal habitus.
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This species can be readily distinguished from
This species is primarily southeastern in distribution, with a northward extension along the Atlantic coast, and was known previously from Alabama, Arkansas, District of Columbia, Florida, Georgia, Illinois, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, and Virginia (
When
This exotic, Palaearctic species was first collected in North America in Quebec in 1959 (
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This species is widely distributed in eastern North America and was previously known from Connecticut, District of Columbia, Georgia, Illinois, Iowa, Kentucky, Maryland, Massachusetts, Michigan, Mississippi, New Jersey, New York, Ohio, Pennsylvania (
This widely distributed species is known from Alabama, Florida, Illinois, Indiana, Iowa, Maryland, Massachusetts, Michigan, Missouri, New Jersey, New York, North Carolina, Pennsylvania, Québec, Texas, and Virginia (
This species is broadly distributed in eastern North America and was previously known from District of Columbia, Florida, Georgia, Illinois, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, and Virginia (
This exotic species was first collected in North America in St. Cyrville, Québec in 1967 and was first recognized in North America by
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This distinctive species was known from 12 specimens at the time of its description, all collected from September to November in southern Québec and Connecticut (
This species is transcontinental in North America with a disjunct population in the Rocky Mountains of Colorado. It was previously known from the following states and provinces: Alberta, Colorado, Manitoba, Massachusetts, New Hampshire, New Jersey, New York, North Dakota, Pennsylvania, Québec, Saskatchewan, and Vermont. Herein we newly record it from Ontario (
This species is widely distributed along the coast of eastern North America and was previously known from Georgia, Maine, Maryland, Massachusetts, Newfoundland, New Jersey, New York, North Carolina, Nova Scotia, Rhode Island (
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This exotic, Palaearctic species was first recognized in North America by
This species is rarely collected and at the time of the most recent revision, it was only known from scattered localities in District of Columbia, Kentucky, New Jersey, Missouri, Oklahoma, Texas (
The genus
This exotic, Palaearctic species was first recognized in North America by
The diverse genus
This exotic Palaearctic species was first reported from North America by
This species was accidentally introduced from the Palaearctic region to North America and was first recognized on the continent by
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
At present,
This species is widely distributed in eastern North America, and was previously known from Indiana, Maryland, Massachusetts, Michigan, New York, North Carolina, Pennsylvania, Rhode Island, Missouri, (
At the time of the most recent revision of the genus, this species was known from only two specimens, from Alberta and Manitoba (
Dorsal habitus.
This species is transcontinental across northern North America with several collections made further south in both the east and west. It is currently known from Alaska, Alberta, British Columbia, California, Connecticut, Maine, Manitoba, Michigan, Montana, Newfoundland, New Brunswick, New Hampshire, New York, North Carolina, Nova Scotia, Northwest Territories, Ontario, Oregon, Québec, Saskatchewan, Tennessee, Vermont, Washington, West Virginia, Wisconsin, and Yukon Territory (
This species is easily recognized among others of the genus with a sparsely punctate forebody by its large size (>4.7mm from clypeus to abdominal apex) and transverse head with slightly converging temples (
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This species is widely distributed and was previously known from Alaska, British Columbia, Illinois, Maine, Massachusetts, New Brunswick, New Hampshire, Newfoundland, New Jersey, New York, Northwest Territories, Nova Scotia, Ontario, Québec, Washington, Wisconsin (
This species was previously known from Florida (Frank 1981), District of Columbia, Massachusetts, Louisiana, Virginia (
This apparently rare species was known from only five specimens at the time of its description (
This Palaearctic species was first recognized in North America by
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This species is transcontinental in northern North America and was previously known from Alaska, Manitoba, Minnesota, and Québec (
This species can be distinguished from other orange and black
This species was previously known from Arizona, California, Colorado, Iowa, Maine, Maryland, Michigan, New Hampshire, New Mexico, New York, Nova Scotia, Pennsylvania, Québec, Texas, and Virginia (
This species is, at present, best identified by the shape of the median lobe of the aedeagus and branches of the paramere (Fig. 499 in
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This species was previously known from Arkansas, Illinois, Louisiana, Oklahoma, Tennessee, and Texas (
This species was previously known from Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Manitoba, Minnesota, Montana, Newfoundland, Northwest Territories, Oregon, Québec, Saskatchewan, Washington, Wisconsin, and Yukon Territory (
This widespread species was previously known from Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Illinois, Indiana, Iowa, Kansas, Maine, Manitoba, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Brunswick, Newfoundland, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Northwest Territories, Nova Scotia, Ohio, Ontario, Oregon, Pennsylvania, Québec, Rhode Island, Saskatchewan, South Dakota, Vermont, Washington, and Wisconsin (
This species was previously known from Arkansas, District of Columbia, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, New Hampshire, New Jersey, New York, Ontario, Pennsylvania, and Québec (
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This species can be easily distinguished from other northeastern
This species may be separated from other northeastern
This Palaearctic species was first detected in North America by
This Palaearctic species was first detected by
Dorsal habitus of
This exotic Palaearctic species was first correctly reported in North America by
Distribution in northeastern North America, sources of data other than DEBU are quoted in parentheses.
This Palaearctic species was first correctly recognized in North America by
Curation of over 32,000 staphylinids deposited in the University of Guelph Insect Collection resulted in the discovery of thirty-five new provincial or state records, six new Canadian records, one new record for the United States and two new records for eastern Canada. Many of these specimens were aleocharines and a future publication is planned to report on the discoveries made while curating this subfamily. The majority of the records presented herein involved species of which were included in recent revisions (after 1970), suggesting that even of ‘well-known’ groups, our knowledge of staphylinid distributions remains incomplete. Two boreal beetles,
The results of this paper demonstrate the key role of curated insect collections in understanding biodiversity in the boreal region, the imperilled ‘Carolinian’ region in Canada, and northeastern North America in general. An improved understanding of rare or or potentially rare insect species, and the effective detection of exotic species, depends on the routine identification of specimens in collections and the regular implentation of regional insect surveys. We recommend increased support for these activities to develop and maintain a clear picture of biodiversity, and biodiversity change, in northeastern North America.
We would like to thank Alan and Anne Morgan (Waterloo, Ontario, Canada) for their donation of the AAMC, and the Southern Crop Protection Research Group (London, Ontario, Canada) for the donation of their collection. We thank Tom Murray (Groton, Massachusetts) for his donation of specimens to DEBU. Ales Smetana (Canadian National Collection of Insects) kindly verified the identity of