Canadian Journal of Arthropod Identification
 
 

The Cryptophagidae of Canada and the northern United States of America

CJAI 40 -- December 20, 2019
doi:10.3752/cjai.2019.40

Georges Pelletier1 & Christian Hébert

Natural Resource Canada, Canadian Forest Service, Laurentian Forestry Centre, Sainte-Foy, Québec City, Québec, Canada
1Corresponding author (georges.pelletier@canada.ca)

An Editorial Corrigendum has been published for this paper doi:10.3752/cjai.2019.40ed.

| Abstract | Introduction | Materials & Methods | Checklist | DNA Barcoding | Taxonomy | Key to Species | Acknowledgments | References | PDF | Cite |
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Abstract

This review of Cryptophagidae of Canada and the Northern United States (US) covers 142 species among the following genera: Caenoscelis (6 species), Antherophagus (4), Cryptophagus (33), Henoticus (4), Henotiderus (2), Micrambe (1), Myrmedophila (1), Pteryngium (1), Salebius (2), Telmatophilus (2), Hypocoprus (1), Atomaria (81), Curelius (1), Ephistemus (2) and Tisactia (1). All species are described morphologically and descriptions include high-definition photographs, geographic distribution data and maps as well as data on seasonal occurrence, habitats and the number of specimens examined. Some already described species that have not yet been recorded in Canada, but that have been found in bordering states with similar habitats, are also included in this publication. An interactive identification key is provided to identify all known species in Canada and Alaska together with a descriptive page for each species.

This publication includes many taxonomic changes, mainly new synonymies. Among Cryptophaginae, the following are considered as new synonyms: Caenoscelis ovipennis Casey, C. macra Casey and C. elongata Casey = C. basalis Casey; Caenoscelis obscura Casey and C. subfuscata Casey = C. cryptophaga Reitter; C. ochreosa Casey = C. ferruginea (C.R. Sahlberg); Caenoscelis angusticollis Casey and C. shastanica Casey = C. parallela Casey; C. macilenta Casey = C. subdeplanata Brisout de Barneville; Cryptophagus pilosus sensu auctorum = C. punctipennis Brisout de Barneville, the true C. pilosus being a nomen dubium. Henoticus mycetoecus is now a synonym of H. pilifer Reitter. Salebius lictor Casey and S. montanus Casey = S. octodentatus (Mäklin).

Most new synonymies are within the genus Atomaria and are as follows: Atomaria (Anchicera) nebulosa Casey = At. (Anc.) apicalis Erichson; At. (Anc.) divisa Casey = At. (Anc.) distincta Casey; At. (Anc.) gonodera Casey, At. (Anc.) riparia Casey, At. (Anc.) subalutacea Casey, At. (Anc.) incerta Casey and At. (Anc.) crypta Casey = At. (Anc.) fuscata Schöenherr; At. (Anc.) ebenina Casey = At. (Anc.) morio Kolenati; At. (Anc.) fallax Casey = At. (Anc.) pusilla (Paykull); At. (Anc.) nanula Casey = At. (Anc.) turgida Ercihson; At. (At.) luculenta (Casey), At. (At.) lucida (Casey) and At. (At.) lucens Grouvelle = At. (At.) nigrirostris Stephens; At (At.) strandi Johnson = At. (At.) coloradensis (Casey); At. (At.) parvicollis (Casey) and A. parva Schenkling = At. (At.) nigricollis (Casey); At. (At.) ochronitens (Casey) = At. (At.) stricticollis (Casey); At. (At.) subangulata (C. Sahlberg) = At. (At.) subdentata (Casey); At. (At.) melas (Casey) = At. (At.) tenebrosa (Casey); At. (At.) cribripennis (Casey) and At. (At.) castanea (Casey) = At. (At.) undulata (Casey). At. (At.) lepidula Mäklin is now considered a nomen dubium, the holotype being lost. Finally, Ephistemus perminutus Casey is a synonym of Curelius japonicus Reitter. One species is restored as a valid species: Atomaria (At.) lineola (Notman), formally synonymized by Johnson (2007) as At. (At.) wollastoni. A. carinula (Casey) was named by Ganglbauer in 1889 and is assigned to a new name: A. neocarinula Pelletier.

This publication includes the descriptions of 22 new species, mostly belonging to the genus Atomaria (provinces or states of types in parentheses): Henoticus varidentatus Pelletier (QC), Atomaria (Anchicera) arcuaticollis Pelletier (QC, AK), At. (Anc.) hudsonica Pelletier (MB), At. (Anc.) neomunda Pelletier (QC, AK), At. (Anc.) nigrirostrisoides Pelletier (QC, AK), At. (Anc.) nigritaria Pelletier (MB, QC), At. (Anc.) ocularia Pelletier (AB), At. (Anc.) parallelicollis Pelletier (QC), At. (Anc.) salicicola Pelletier (AB), At. (At.) albertana Pelletier (AB), At. (At.) calidaria Pelletier (AB), At. (At.) californica Pelletier (CA), At. (At.) cribricollis Pelletier (OR, AB, AK), At. (At.) impressicollis Pelletier (AB, BC, YT), At. (At.) lyricollis Pelletier (MB), At. (At.) ontariensis Pelletier (ON), At. (At.) orbicollis Pelletier (QC, ON), At. (At.) pinicola Pelletier (NB, QC, BC), At. (At.) pseudotsugae Pelletier (BC), At. (At.) puelloides Pelletier (GA), At. (At.) thujaplicatae Pelletier (BC) and At. (At.) visoni Pelletier (AB, BC).

Two genera are recorded for the first time in Canada: Micrambe Thomson, with Micrambe ulicis (Stephens) (QC) (also recorded for the first time in North America) and Tisactia Casey, with Tisactia subglabra Casey (QC, ON).

Including all new species except for the two known only from California and Georgia, 62 species are recorded for the first time in Canada or Alaska. In addition to the new species mentioned above, these species are: Cryptophagus croceus Zimm.(NS, QC, ON, MB, SK, AB), C. denticulatus Heer(QC, ON, MB, AB, BC), C. lycoperdi (Scop.) (QC), C. valens Csy. (QC, ON, MB, SK, BC), Henoticus pilifer Reitter (QC, ON, BC), Hypocoprus latridioides Motsch. (SK, AB), Atomaria (Anchicera) atra (Hrbst.) (NB, QC), A. basalis Eric. (NB, QC, MB, BC, NT, YT, AK), A. brevicollis Csy. (NB, QC, ON, MB, SK, AB, BC, NT), A. gilvipennis Csy.(NS, QC, ON), A. inepta Eric. (QC, BC, NT, AK), A. mesomela Hrbst. (BC), A. morio Kolen.(NB, QC, ON, SK, AB), A. munda Eric. (NB, QC, BC, AK), A. oblongula Csy. (NF, NS, NB, QC, ON, MB, SK, AB, BC, NT, AK), A. ornata Heer (BC), A. peltata Kraatz (BC, AK), A. postpallens Csy. (AB, BC, NT, AK), A. sodermani Sjöb. (QC, NT), A. turgida Eric. (NB, QC, ON, MB, SK, AB, BC, NT, YT, AK), Atomaria (Atomaria) affinis R.F. Sahl. (NS, NB, QC, AB, BC, AK), A. alpina Heer (NS, NB, QC, ON, AB, BC), A. coloradensis (Csy.) (NB, QC, AB, BC, YT, AK), A. constricta (Csy.) (NB, QC, AB, BC), A. crassula (Csy.) (NB, QC), A. dispersa (Csy.) (NB, QC, ON, AB, BC, AK), A. elongatula Eric. (QC, AB, BC), A. fimetarii (F.) (NS, NB, QC, ON, MB, SK, AB, BC, NT), A. impressa Eric. (NB, QC, ON, AB), A. macra (Csy.) (NB, QC, AB, BC, AK), A. neocarinula (Pel.) (AB), A. nigricollis (Csy.) (ON, MB, AB, BC, YT, AK), A. parviceps Notm. (QC, ON, AB), A. patens (Csy.) (NB, QC, ON), A. puella (Csy.) (AB), A. pumilio (Csy.) (NB, QC, ON, MB, SK, BC), A. tenebrosa (Csy.) (NB, QC, ON, AB, AK), A. umbrina (Gyll.) (NB, QC, ON, BC), A. undulata (Csy.) (NB, QC, ON, AB, BC, AK) and A. versa Grouv. (AK).

Excluding all the species mentioned previously, there is at least one new provincial or Alaska state record for the following 61 species: Caenoscelis basalis Csy.(NB, MB), C. ferruginea (C.R. Sahl,) (NS), C. parallela Csy. (AB), C. subdeplanata Bris. de Barn. (NB, BC), Antherophagus convexulus LeC. (SK, AB, AK), A. ochraceus Melsh. (NT), A. pallidivestis Csy. (NB, QC, ON, AB), A. suturalis Mäkl. (SK, AB), Cryptophagus bidentatus Mäkl. (QC, ON, MB, AB, YT), C. cellaris (Scop.) (QC, YT), C. confertus Csy. (ON, MB, YT), C. corticinus Thoms. (MB, AB, YT), C. dentatus (Hrbst.) (QC, ON, MB, YT), C. difficilis Csy. (NB, ON, MB, NT, YT, AK), C. distinguendus (QC, ON, SK, AB), C. fallax Balf.-Br. (QC, ON), C. hebes Csy. (YT), C. histricus Csy.(QC, ON, SK, AB), C. lapponicus Gyll. (QC, ON, AB, NT, YT, AK), C. laticollis Lucas (MB), C. mainensis Csy. (QC, ON), C. obsoletus Reit. (QC, MB, SK, AB, YT), C. peregrinus Wdrf. & Cmbs. (AB), C. quadrihamatus Mäkl. (QC, ON, MB, SK, AB, BC, YT), C. saginatus Sturm (PE, NB, QC), C. scanicus (QC, ON, BC, YT), C. scutellatus Newm. (QC, MB, AB), C. setulosus Sturm (AB, NT), C. stromus Wdrf. & Cmbs. (AB, AK), C. subfumatus Kraatz (NB, MB), C. tuberculosus Mäkl.(QC, ON, MB), C. varus Wdrf. & Cmbs. (QC, ON, MB), Henoticus serratus (AB), Henotiderus lorna (Hatch) (AB), Myrmedophila americana (LeC.) (ON), Pteryngium crenulatum (Eric.) (ON, AB, AK), Salebius octodentatus (Mäkl.) (AB), Atomaria (Anchicera) aleutica Csy. (MB, SK, AB, BC, NT, YT), A. apicalis Eric. (ON, SK, AB, BC, NT, YT, AK), A. distincta Csy. (ON, AB), A. ephippiata Zimm. (AK), A. fulvipennis Mann. (QC, ON, MB, SK, AB, BC, NT, YT), A. fuscata Schnrr. (AB, BC, NT, YT, AK), A. kamtschatica Motsch. (MB, AB, NT, YT), A. laetula LeC. (SK), A. lederi Johns. (NB, QC, ON, AB, BC), A. lewisi Reit. (MB, SK, AB, BC, AK), A. nubipennis Csy. (AB, AK), A. pusilla (Payk.) (ON), A. testacea Steph. (SK, BC), Atomaria (Atomaria) atrata Reit. (QC, ON, AB, AK), A. capitata (Csy.) (NB, QC, AB, AK), A. lineola (Notman) (ON, MB, SK, AB, BC), A. longipennis (Csy.) (QC, AB, AK), A. nigrirostris Steph. (NB, ON, SK, AB, BC, YT), A. planulata Mäkl. (QC, AB, YT), A. quadricollis (Csy.) (QC, ON, AB), A. stricticollis (Csy.) (QC, AB, YT), A. subdentata (Csy.) (NB, QC, ON, MB, SK, AB, AK), A. vespertina Mäkl. (QC, ON, MB, AB) and Ephistemus globulus (NF, LB, NS, QC).

By state or province, these new records total 2 for Newfoundland and Labrador, 1 for Prince-Edward Island, 9 for Nova Scotia, 31 for New Brunswick, 66 for Quebec, 50 for Ontario, 33 for Manitoba, 24 for Saskatchewan, 69 for Alberta, 41 for British Columbia, 17 for the Northwest Territories and Nunavut, 24 for Yukon, and 35 for Alaska.

The following 27 species are considered Holarctic, being naturally distributed in northern Europe, Asia and North America, through Alaska: Caenoscelis ferruginea, Cryptophagus acutangulus, C. bidentatus, C. confertus, C. corticinus, C. lapponicus, C. quadrihamatus, C. tuberculosus, Henoticus serratus, Henotiderus centromaculatus, Salebius octodentatus, Atomaria (Anchicera) apicalis, A. (Anc.) basalis, A. (Anc.) fulvipennis, A. (Anc.) fuscata, A. (Anc.) kamtschatica, A. (Anc.) peltata, A. (Anc.) sodermani, A. (Anc.) turgida, A. (Atomaria) affinis, A. (At.) atrata, A. (At.) elongatula, A. (At.) fimetarii, A. (At.) nigrirostris, A. (At.) subdentata, A. (At.) vespertina and Hypocoprus latridioides.

Cryptophagidae contains up to 34 adventive species accidentally introduced by human activity, many of which live indoors, but also includes some that have successfully colonized natural habitats: Caenoscelis subdeplanata, Cryptophagus cellaris, C. dentatus, C. denticulatus, C. distinguendus, C. fallax, C. laticollis, C. lycoperdi, C. obsoletus, C. punctipennis, C. saginatus, C. scanicus, C. scutellatus, C. setulosus, C. subfumatus, Henoticus pilifer, Micrambe ulicis, Pteryngium crenulatum, Telmatophilus typhae, Atomaria (Anchicera) atra, A (Anc.) lederi, A (Anc.) lewisi, A (Anc.) mesomela, A (Anc.) morio, A (Anc.) munda, A (Anc.) ornata, A (Anc.) pusilla, A (Anc.) testacea, A. (Atomaria) alpina, A. (At.) impressa, A. (At.) linearis, A. (At.) umbrina, Curelius japonicus and Ephistemus globulus.

Résumé
Cette révision des Cryptophagidés du Canada et du nord des États-Unis couvre 142 espèces parmi les genres suivants : Caenoscelis (6 espèces), Antherophagus (4), Cryptophagus (33), Henoticus (4), Henotiderus (2), Micrambe (1), Myrmedophila (1), Pteryngium (1), Salebius (2), Telmatophilus (2), Hypocoprus (1), Atomaria (81), Curelius (1), Ephistemus (2) et Tisactia (1). Toutes ces espèces sont décrites morphologiquement et les descriptions incluent, pour chaque espèce, des photographies à haute définition, des données de répartition géographique avec carte de distribution, ainsi que des données sur l’occurrence saisonnière, les habitats et le nombre de spécimens observés. Quelques espèces n’ayant pas encore été récoltées au Canada, mais vivant dans des habitats similaires aux États-Unis, ont également été incluses dans cette publication. Une clé virtuelle d’identification permet d’identifier toutes les espèces connues au Canada et en Alaska, avec un lien vers leur page descriptive.

Cette publication inclut de nombreux changements taxonomiques, surtout au niveau synonymique. Les espèces suivantes ont été synonymisées: Caenoscelis ovipennis Casey, C. macra Casey and C. elongata Casey = C. basalis Casey; Caenoscelis obscura Casey and C. subfuscata Casey = C. cryptophaga Reitter; C. ochreosa Casey = C. ferruginea (C.R. Sahlberg); Caenoscelis angusticollis Casey and C. shastanica Casey = C. parallela Casey; C. macilenta Casey = C. subdeplanata Brisout de Barneville; Cryptophagus pilosus sensu auctorum = C. punctipennis Brisout de Barneville, le véritable C. pilosus ayant une identité incertaine. Henoticus mycetoecus est maintenant un synonyme de H. pilifer Reitter. Salebius lictor Casey et S. montanus Casey = S. octodentatus (Mäklin).

La plupart de la nouvelle synonymie se trouve dans le genre Atomaria et inclut les espèces suivantes : Atomaria (Anchicera) nebulosa Casey = At. (Anc.) apicalis Erichson; At. (Anc.) divisa Casey = At. (Anc.) distincta Casey; At. (Anc.) gonodera Casey, At. (Anc.) riparia Casey, At. (Anc.) subalutacea Casey, At. (Anc.) incerta Casey et At. (Anc.) crypta Casey = At. (Anc.) fuscata Schöenherr; At. (Anc.) ebenina Casey = At. (Anc.) morio Kolenati; At. (Anc.) fallax Casey = At. (Anc.) pusilla (Paykull); At. (Anc.) nanula Casey = At. (Anc.) inepta Casey; At. (At.) luculenta (Casey), At. (At.) lucida (Casey) et At. (At.) lucens Grouvelle = At. (At.) nigrirostris Stephens; At (At.) strandi Johnson = At. (At.) coloradensis (Casey); At. (At.) parvicollis (Casey) et A. parva Schenkling = At. (At.) nigricollis (Casey); At. (At.) ochronitens (Casey) = At. (At.) stricticollis (Casey); At. (At.) subangulata (C. Sahlberg) = At. (At.) subdentata (Casey); At. (At.) melas (Casey) = At. (At.) tenebrosa (Casey); At. (At.) cribripennis (Casey) and At. (At.) castanea (Casey) = At. (At.) undulata (Casey). At. (At.) lepidula Mäklin est maintenant considéré comme un nomem dubium, l’holotype ayant été perdu. Finalement, Ephistemus perminutus Casey est un synonyme de Curelius japonicus Reitter. L’analyse génétique a permi de restaurer 2 espèces valides que Johnson (2007) avait synonymisées comme étant At. (At.) wollastoni: Atomaria (At.) pumilio et At. (At.) lineola (Notman). A. carinula (Casey) a été auparavant nommé par Ganglbauer en 1889 et un nouveau nom lui a été assigné: A. neocarinula Pelletier.

Cette publication comprend la description de 22 nouvelles espèces, appartenant surtout au genre Atomaria (les provinces et les États sont inclus entre parenthèses): Henoticus varidentatus Pelletier (QC), Atomaria (Anchicera) arcuaticollis Pelletier (QC, AK), At. (Anc.) hudsonica Pelletier (MB), At. (Anc.) neomunda Pelletier (QC, AK), At. (Anc.) nigrirostrisoides Pelletier (QC, AK), At. (Anc.) nigritaria Pelletier (MB, QC), At. (Anc.) ocularia Pelletier (AB), At. (Anc.) parallelicollis Pelletier (QC), At. (Anc.) salicicola Pelletier (AB), At. (At.) albertana Pelletier (AB), At. (At.) calidaria Pelletier (AB), At. (At.) californica Pelletier (CA), At. (At.) cribricollis Pelletier (OR, AB, AK), At. (At.) impressicollis Pelletier (AB, BC, YT), At. (At.) lyricollis Pelletier (MB), At. (At.) ontariensis Pelletier (ON), At. (At.) orbicollis Pelletier (QC, ON), At. (At.) pinicola Pelletier (NB, QC, BC), At. (At.) pseudotsugae Pelletier (BC), At. (At.) puelloides Pelletier (GA), At. (At.) thujaplicatae Pelletier (BC) and At. (At.) visoni Pelletier (AB, BC).

Deux nouveaux genres ont été récoltés pour la première fois au Canada : Micrambe Thomson, incluant Micrambe ulicis (Stephens) (QC) (aussi enregistré pour la première fois en Amérique du Nord) et Tisactia Casey, incluant Tisactia subglabra Casey (QC, ON).

En incluant toutes les nouvelles espèces, 60 espèces sont mentionnées pour la première fois au Canada ou en Alaska. En voici la liste, excluant les deux mentionnées au paragraphe précédent : Cryptophagus croceus Zimm.(NS, QC, ON, MB, SK, AB), C. denticulatus Heer(QC, ON, MB, AB, BC), C. lycoperdi (Scop.) (QC), C. valens Csy. (QC, ON, MB, SK, BC), Henoticus pilifer Reitter (QC, ON, BC), Hypocoprus latridioides Motsch. (SK, AB), Atomaria (Anchicera) atra (Hrbst.) (NB, QC), A. basalis Eric. (NB, QC, MB, BC, NT, YT, AK), A. brevicollis Csy. (NB, QC, ON, MB, SK, AB, BC, NT), A. gilvipennis Csy.(NS, QC, ON), A. inepta Eric. (QC, BC, NT, AK), A. mesomela Hrbst. (BC), A. morio Kolen.(NB, QC, ON, SK, AB), A. munda Eric. (NB, QC, BC, AK), A. oblongula Csy. (NF, NS, NB, QC, ON, MB, SK, AB, BC, NT, AK), A. ornata Heer (BC), A. peltata Kraatz (BC, AK), A. postpallens Csy. (AB, BC, NT, AK), A. sodermani Sjöb. (QC, NT), A. turgida Eric. (NB, QC, ON, MB, SK, AB, BC, NT, YT, AK), Atomaria (Atomaria) affinis R.F. Sahl. (NS, NB, QC, AB, BC, AK), A. alpina Heer (NS, NB, QC, ON, AB, BC), A. coloradensis (Csy.) (NB, QC, AB, BC, YT, AK), A. constricta (Csy.) (NB, QC, AB, BC), A. crassula (Csy.) (NB, QC), A. dispersa (Csy.) (NB, QC, ON, AB, BC, AK), A. elongatula Eric. (QC, AB, BC), A. fimetarii (F.) (NS, NB, QC, ON, MB, SK, AB, BC, NT), A. forticornis (Csy.) (NB, QC, BC), A. impressa Eric. (NB, QC, ON, AB), A. macra (Csy.) (NB, QC, AB, BC, AK), A. neocarinula (Pel.), A. nigricollis (Csy.) (ON, MB, AB, BC, YT, AK), A. parviceps (Notm.) (QC, ON, AB), A. patens (Csy.) (NB, QC, ON), A. puella (Csy.) (AB), A. pumilio (Csy.) (NB, QC, ON, MB, SK, BC), A. tenebrosa (Csy.) (NB, QC, ON, AB, AK), A. umbrina (Gyll.) (NB, QC, ON, BC), A. undulata (Csy.) (NB, QC, ON, AB, BC, AK) et A. versa Grouv. (AK).

En plus des espèces mentionnées précédemment, voici la liste des 61 espèces mentionnées pour la première fois dans une province canadienne ou en Alaska: Caenoscelis basalis Csy.(NB, MB), C. ferruginea (C.R. Sahl,) (NS), C. parallela Csy. (AB), C. subdeplanata Bris. de Barn. (NB, BC), Antherophagus convexulus LeC. (SK, AB, AK), A. ochraceus Melsh. (NT), A. pallidivestis Csy. (NB, QC, ON, AB), A. suturalis Mäkl. (SK, AB), Cryptophagus bidentatus Mäkl. (QC, ON, MB, AB, YT), C. cellaris (Scop.) (QC, YT), C. confertus Csy. (ON, MB, YT), C. corticinus Thoms. (MB, AB, YT), C. dentatus (Hrbst.) (QC, ON, MB, YT), C. difficilis Csy. (NB, ON, MB, NT, YT, AK), C. distinguendus (QC, ON, SK, AB), C. fallax Balf.-Br. (QC, ON), C. hebes Csy. (YT), C. histricus Csy.(QC, ON, SK, AB), C. lapponicus Gyll. (QC, ON, AB, NT, YT, AK), C. laticollis Lucas (MB), C. mainensis Csy. (QC, ON), C. obsoletus Reit. (QC, MB, SK, AB, YT), C. peregrinus Wdrf. & Cmbs. (AB), C. quadrihamatus Mäkl. (QC, ON, MB, SK, AB, BC, YT), C. saginatus Sturm (PE, NB, QC), C. scanicus (QC, ON, BC, YT), C. scutellatus Newm. (QC, MB, AB), C. setulosus Sturm (AB, NT), C. stromus Wdrf. & Cmbs. (AB, AK), C. subfumatus Kraatz (NB, MB), C. tuberculosus Mäkl.(QC, ON, MB), C. varus Wdrf. & Cmbs. (QC, ON, MB), Henoticus serratus (AB), Henotiderus lorna (Hatch) (AB), Myrmedophila americana (LeC.) (ON), Pteryngium crenulatum (Eric.) (ON, AB, AK), Salebius octodentatus (Mäkl.) (AB), Atomaria (Anchicera) aleutica Csy. (MB, SK, AB, BC, NT, YT), A. apicalis Eric. (ON, SK, AB, BC, NT, YT, AK), A. distincta Csy. (ON, AB), A. ephippiata Zimm. (AK), A. fulvipennis Mann. (QC, ON, MB, SK, AB, BC, NT, YT), A. fuscata Schnrr. (AB, BC, NT, YT, AK), A. kamtschatica Motsch. (MB, AB, NT, YT), A. laetula LeC. (SK), A. lederi Johns. (NB, QC, ON, AB, BC), A. lewisi Reit. (MB, SK, AB, BC, AK), A. nubipennis Csy. (AB, AK), A. pusilla (Payk.) (ON), A. testacea Steph. (SK, BC), Atomaria (Atomaria) atrata Reit. (QC, ON, AB, AK), A. capitata (Csy.) (NB, QC, AB, AK), A. lineola (Notman) (ON, MB, SK, AB, BC), A. longipennis (Csy.) (QC, AB, AK), A. nigrirostris Steph. (NB, ON, SK, AB, BC, YT), A. planulata Mäkl. (QC, AB, YT), A. quadricollis (Csy.) (QC, ON, AB), A. stricticollis (Csy.) (QC, AB, YT), A. subdentata (Csy.) (NB, QC, ON, MB, SK, AB, AK), A. vespertina Mäkl. (QC, ON, MB, AB) et Ephistemus globulus (NF, LB, NS, QC).

Pour résumer, nous comptons 2 nouvelles mentions pour Terre-Neuve et Labrador, 9 nouvelles mentions pour la Nouvelle-Écosse, 31 pour le Nouveau-Brunswick, 66 pour le Québec, 50 pour l’Ontario, 33 pour le Manitoba, 24 pour la Saskatchewan, 69 pour l’Alberta, 41 pour la Colombie Britannique, 17 pour les Territoires du Nord-Ouest et le Nunavut, 25 pour le Yukon et 35 pour l’Alaska.

Selon les données de distribution et d’abondance, les 27 espèces suivantes sont considérées comme holarctique, ayant une répartition géographique naturelle dans le nord de l’Europe, de l’Asie et de l’Amérique du Nord, en passant par l’Alaska : Caenoscelis ferruginea, Cryptophagus acutangulus, C. bidentatus, C. confertus, C. corticinus, C. lapponicus, C. quadrihamatus, C. tuberculosus, Henoticus serratus, Henotiderus centromaculatus, Salebius octodentatus, Atomaria (Anchicera) apicalis, A. (Anc.) basalis, A. (Anc.) fulvipennis, A. (Anc.) fuscata, A. (Anc.) kamtschatica, A. (Anc.) peltata, A. (Anc.) sodermani, A. (Anc.) turgida, A. (Atomaria) affinis, A. (At.) atrata, A. (At.) elongatula, A. (At.) fimetarii, A. (At.) nigrirostris, A. (At.) subdentata, A. (At.) vespertina et Hypocoprus latridioides.

Les Cryptophagidés comprennent un grand nombre d’espèces adventices, introduites accidentellement par l’activité humaine. Plusieurs d’entre elles vivent à l’intérieur des bâtiments, mais d’autres ont colonisé avec succès les habitats naturels, dont les 34 espèces suivantes : Caenoscelis subdeplanata, Cryptophagus cellaris, C. dentatus, C. denticulatus, C. distinguendus, C. fallax, C. laticollis, C. lycoperdi, C. obsoletus, C. punctipennis, C. saginatus, C. scanicus, C. scutellatus, C. setulosus, C. subfumatus, Henoticus pilifer, Micrambe ulicis, Pteryngium crenulatum, Telmatophilus typhae, Atomaria (Anchicera) atra, A (Anc.) lederi, A (Anc.) lewisi, A (Anc.) mesomela, A (Anc.) morio, A (Anc.) munda, A (Anc.) ornata, A (Anc.) pusilla, A (Anc.) testacea, A. (Atomaria) alpina, A. (At.) impressa, A. (At.) linearis, A. (At.) umbrina, Curelius japonicus et Ephistemus globulus.


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