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44 results for “Geadephaga”
Staines & Staines 2021: The Geadephaga (Coleoptera: Carabidae and Rhysodidae) of SERC (repackaging of occurrences published by the NEON Biorepository Data Portal)
Linked records of Carabidae and Rhysodidae specimens from the SERC site, collected between 2015-2018, included in the following publication: Staines, C.L. & Staines, S. L. The Geadephaga (Coleoptera: Carabidae and Rhysodidae) of the Smithsonian Environmental Research Center, Maryland. 2021. Banisteria 55: 75-100. Original abstract: "An inventory of the Geadephaga (Coleoptera) at the Smithsonian Environmental Research Center, Anne Arundel County, Maryland is being conducted. Pitfall traps were placed and monitored from 2015 to 2018. From 2017 to 2020 directed collecting efforts were made to document the Geadephaga of the facility. A total of 111 Geadephaga species was collected: Carabidae - 110, Rhysodidae - 1." Research article available for download: https://virginianaturalhistorysociety.com/banisteria/pdf-files/ban55/Staines_SERC_Geadephaga.pdf
Figure 6 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 6 - Pelophila borealis (Paykull). This pelophiline is one of the 97 species-group taxa which are Holarctic and found naturally in both the Palaearctic and Nearctic Regions. Most of these species are confined to the arctic, subarctic or boreal regions but a few are found mainly in the temperate regions such as Dyschirius politus. Most biogeographers agree that these species have spread between the two continents through Beringia during the Quaternary period.
Figure 5 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 5 - Omoglymmius americanus (Laporte). This species is one of the seven rhysodid species-group taxa found in eastern North America. These species live in decaying wood, such as logs, stumps or roots, where they feed on slime molds and fungi. The carabids, on the other hand, are carnivorous, herbivorous, or omnivorous feeding on both animal and plant matters.
Figure 42 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 42 - Helluomorphoides praeustus bicolor (Harris). Adults of most carabids are opportunist predators or scavengers but those of Helluomorphoides seem to have adopted a different, more dangerous life-style. Adults of two North American species have been observed to plunder foraging and migrating columns of army ant species of the genus Neivamyrmex and run away with their prey and broods. The beetles do not inhabit the ant nest or bivouac but can detect and follow the chemical trails of the ants at night. Whether this habit is common to all species of Helluomorphoides remains to be investigated.
Figure 41 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 41 - Tecnophilus croceicollis peigani Larson. Adults of this handsome subspecies are usually found during the day on clay-sand soil on the ground or climbing on very low vegetation along the bases of south facing coulees. The subspecific name derives from the name of an Indian tribe of the Blackfoot Confederation, Peigan, which inhabited the prairies of southern Alberta where the taxon is found in Canada.
Figure 7 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 7 - Notiophilus aquaticus (Linnaeus). This species is an example of a circumboreal taxon; it is found in the Northern Hemisphere without major gaps north of latitude 45. Linnaeus gave this species the epithet aquaticus in the 10th edition of his Systema Naturae, published in 1758, on the assumption that the species lived close to water. We know today that this is not the case and the species is found in relatively dry, open habitats. Notiophilus larvae and adults prey on collembolans. The adults are challenging to catch by hand because of their small size and swiftness.
Figure 40 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 40 - Cymindis platicollis (Say). This Cymindis is a typical element of the temperate forest of eastern North America. Unlike most carabids inhabiting the temperate and boreal regions, this species lives above the surface of the ground in trees and is usually collected by beating branches. An arboreal way of life is a common feature among tropical carabids.
Figure 4 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 4 - Trachypachus gibbsii LeConte. This species is a typical western element as are the other two North American trachypachids. Although superficially similar to some large Bembidion or small Amara and having the same ecological preferences, we now believe that these beetles, along with members of the related genus Systolosoma of South America, are not closely related to any groups of carabids.
Figure 37 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 37 - Rhadine lindrothi Barr. This species, named after Carl H. Lindroth, is the only one of the genus Rhadine that reaches as far north as southern Canada. Ecologically, members of the genus can be divided into two groups, one that includes cavernicolous species and the other that includes surface dwelling species like Rhadine lindrothi. Most species are more or less depigmented and with relatively long legs.
Figure 38 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 38 - Perigona nigriceps (Dejean). While most adventive carabid species have been introduced from Europe, this species, which is now subcosmopolitan, is probably native from southern Asia where it is common around the Indian Ocean. Contrary to European adventive species which have been introduced to North America through ballast and nursery stocks, this species was probably transported around the world among stored products on ships.
Figure 35 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 35 - Cratacanthus dubius (Palisot de Beauvois). This widely distributed and morphologically variable species was described by the French naturalist traveler Ambroise Marie Joseph Palisot, Baron de Beauvois, one of the first entomologists to collect and describe American insects. On North American soil, Palisot de Beauvois collected from the Ohio River in the west to Savannah in Georgia. Unfortunately most of his collection was lost in a shipwreck off Nova Scotia in 1798 and his subsequent published descriptions were based on his notes and drawings.
Figure 34 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 34 - Trichotichnus dichrous (Dejean). This eastern species is color-dimorphic, a phenomenon rarely seen in North American carabids. While most adults have the head and pronotum reddish-yellow and the elytra much darker, a small number of adults are known to be uniformly piceous. When he described the species, Dejean had a single specimen of the common morph. The strong color contrast between the forebody and elytra prompt him to propose the name dichrous, from the Greek prefix di- (two) and chroma (color of the skin).
Figure 33 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 33 - Piosoma setosum LeConte. Adults of this species are easily recognized by the presence of many, long and erect setae over the body, hence the specific name setosum. Prairie inhabitants, the first documented adults were found by John Lawrence LeConte during his expedition of 1845 which brought him along the Platte River up to Fort Laramie in Wyoming, thence to the foot of the Rocky Mountains.
Figure 32 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 32 - Geopinus incrassatus (Dejean). This species is a good illustration of the fact that overall morphological similarity is not always a good indicator of close relationship. It was described by Dejean in the genus Daptus which currently includes five species in the Palaearctic Region. John Lawrence LeConte recognized its distinctness and proposed a new genus for it but still most taxonomists interested in harpalines thought it was closely related to daptines. However, several small structural details of the adults and larvae suggest that the species is simply an aberrant member of the genus Anisodactylus and is not closely related to daptines.
Figure 30 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 30 - Chlaenius purpuricollis Randall. This relatively small chlaeniine had been rarely collected until pitfall trapping showed that it is common in alvars, which are flat, relatively open grassy areas with shallow or sporadic soil cover over calcareous bedrock. Alvars are known from Sweden, Estonia, New York, Michigan, Ohio, and particularly central Canada. The chlaeniine is also found in similar habitats in other parts of North America.
Figure 3 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 3 - Cumulative number of species-group taxa of Geadephaga described and currently valid, by decade.
Figure 39 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 39 - Atranus pubescens (Dejean). This species is found over eastern North America and the only other species in the genus, Atranus ruficollis, occurs in southern Europe and the Middle East. The only other carabid genus with a similar vicariant distribution is Olisthopus although one European species, Olisthopus sturmii, extends to the Far East. Most amphiatlantic vicariant carabid groups, such as Pseudanophthalmus-Duvaliopsis, are at least generically distinct.
Figure 31 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 31 - Badister neopulchellus Lindroth. This nicely colored licinine was first recognized by Carl Lindroth when he realized that the Badister pulchellus of authors included two species, this one which is transcontinental and relatively commonly collected and Badister pulchellus, a much rarer species restricted to the eastern parts of the continent. With the advent of molecular tools, there is little doubt that several of our carabid species will eventually be showed to be complexes of species that cannot be separately with confidence based on morphology alone.
Figure 43 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 43 - Pseudomorpha sp. Members of Pseudomorpha are among the most unusual North American carabids. The body shape of the adults is very characteristic. In addition, contrary to other Nearctic carabids that lay eggs, they are ovoviviparous. The females carry hatched larvae in their bursa copulatrix, vagina, and lateral oviducts. Such behavior probably greatly reduces egg mortality.
Figure 36 from: Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera: Adephaga) of America, north of Mexico. ZooKeys 245: 1-1722. https://doi.org/10.3897/zookeys.245.3416
Figure 36 - Sericoda quadripunctata (DeGeer). This widely distributed Holarctic species is attracted to fire. The adults are often found in great numbers just after forest fires when the ashes are still hot. This behavior is shared by the other species in the genus and a few other carabids, such as Harpalus laticeps and Harpalus laevipes. The presence of charcoal is probably a stimulus for oviposition. Henri Goulet was unsuccessful in obtaining eggs from Sericoda obsoleta in the laboratory until he added charcoal to his rearing containers.
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