Dicaelus furvus
Dejean, 1826
notched-mouthed ground beetle
Dicaelus furvus is a of ground beetle in the Carabidae. It belongs to the Dicaelus, commonly known as notched-mouthed ground beetles. The species occurs in North America, with confirmed records from the United States. Two are recognized: Dicaelus furvus furvus (Dejean, 1826) and Dicaelus furvus carinatus (Dejean, 1831). Like other members of its genus, it is a predatory typically found in terrestrial .
Pronunciation
How to pronounce Dicaelus furvus: /daɪˈsiːləs ˈfɜːrvəs/
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Identification
Members of the Dicaelus can be distinguished from similar ground beetles by the notched or (upper lip), which gives the group its . Dicaelus furvus specifically may be separated from by subtle differences in elytral and body proportions, though precise diagnostic features require examination of . The has with segments longer than wide, and exposed forward-directed typical of predatory carabids.
Habitat
Terrestrial in North America. Specific microhabitat preferences are not well documented, but are often found in wooded areas, under debris, or in soil crevices.
Distribution
North America; confirmed present in the United States.
Behavior
Ground beetles in the Dicaelus are generally fast-moving, . They are capable of rapid running when disturbed, characteristic of many Carabidae.
Ecological Role
Predatory , likely contributing to control of other in its .
Similar Taxa
- Dicaelus dilatatusSimilar notched-mouthed ground beetle in the same , differing in body proportions and elytral
- Other Dicaelus species share the diagnostic notched but differ in subtle morphological features requiring detailed examination
- Darkling beetles (Tenebrionidae)Superficially similar ground-dwelling beetles, but distinguished by bead-like segments and concealed