Beetles of North Carolina
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Scientific Name: Common Name:
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View Carabidae Members:
Members of Trechus:
5 NC Records

Trechus talequah Barr, 1962 - No Common Name

Taxonomy
Family: Carabidae Subfamily: Trechinae                                                             
Comments: One of 82 species in this genus that have been recorded in North America north of Mexico, 42 of which occur in North Carolina (Bosquet, 2012). Trechus talequah belongs to subgenus Microtrechus and is included in the Uncifer Species Group by Barr (1962, 1979). In addition to talequah, Bosquet (2012) includes 10 other species, all of which occur in the North Carolina mountains or on the ridges forming the border between North Carolina and Tennessee.
Species Status: The type locality is Haw Knob in the Unicoi Mountains on the Tennessee-North Carolina state line (Barr gives the county as Monroe County, TN)
Identification
Field Guide Descriptions: Online Resources: BugGuide, Wikipedia, GBIF   iNaturalistTechnical Description, Adults/Nymphs: Barr (1962, 1979)                                                              
Comments: Members of this genus generally show too little variation in pattern for standard photographs to be used to identify particular species.
Total Length [body plus wings; excludes ovipositor]: 2.7-3.0 mm, mean 2.8 (Barr, 1962)
Structural Features: As a member of subgenus Microtrechus, only the first segment of front tarsus is enlarged in males. This species is distinguished from other members of its species group morphometrically and by features of the aedeagus (Barr, 1962, 1979).
Distribution in North Carolina
County Map: Clicking on a county returns the records for the species in that county.
Flight Dates:
 High Mountains (HM) ≥
 4,000 ft.
 Low Mountains (LM) <
 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)
Click on graph to enlarge
Habitats and Life History
Habitats: The elevation of Haws Knob is about 5,478'; the summit is covered with high elevation hardwood forest (based on Google Earth). Haoe Lead and Johns Knob are about 4,560' and 4900' respectively and also covered with hardwoods. Donabauer (2005a) found specimens by sifting humid or wet leaf litter from around springs and at the base of rock cliffs.
See also Habitat Account for General High Elevation Forests
Diet: Predatory on small insects and other invertebrates
Observation Methods:
Abundance/Frequency: Donabauer (2005a) considered this species to be comparatively common at the sites where it occurs
Adult Phenology:
Status in North Carolina
Natural Heritage Program Status: [SR]
Natural Heritage Program Ranks: GNR [S1S2]
State Protection:
Comments: This species is known solely from the Unicoi Mountains on ridgetops above 4,500'. As such, it is probably vulnerable to the warming and drying impacts of climate change.