Oklahoma
Guides
Strigoderma knausi
A small scarab beetle endemic to the Great Plains sand dune systems of south-central Kansas, Oklahoma, and northern Texas. Males are frequently encountered by sweeping low vegetation or at light traps, where they adopt a characteristic horizontal posture with forelegs extended and antennal clubs spread to detect female sex pheromones. The species was described from specimens collected by Warren Knaus in 1923–1925 at the type locality near Medora, Kansas, and named in his honor. Females are extraordinarily rare in collections, with only a single specimen among nearly 100 examined by Bader (1992).
Trichodes bibalteatus
checkered beetle
Trichodes bibalteatus is a species of checkered beetle in the family Cleridae. It is among the largest and most strikingly-colored species in its genus, which contains 11 North American species. Adults are frequently found on flowers where they feed on pollen and nectar, and also use flowers as mating sites. The species has been documented in Oklahoma and other parts of western North America.
Trichodes oresterus
checkered beetle
Trichodes oresterus is a species of checkered beetle in the family Cleridae, described by Wolcott in 1910. The species occurs in North America, with confirmed records from the southwestern United States including Oklahoma and New Mexico. Adults have been observed visiting flowers, particularly yellow composites in the genus Thelesperma. Like other members of the genus Trichodes, this species likely exhibits the characteristic life history of laying eggs on flowers, with larvae subsequently attaching to visiting bees or wasps to be transported to host nests where they prey on developing brood.
Trichonephila clavata
Jorō spider, Joro Spider, Parachute spider
Trichonephila clavata, commonly known as the Jorō spider, is a large orb-weaving spider native to East Asia that has become established as an invasive species in the southeastern United States since approximately 2010. First confirmed in Georgia in 2014, it has expanded rapidly across multiple states through a combination of ballooning dispersal and human-mediated transport. The species is notable for its substantial size, striking coloration, and extensive golden webs, but poses minimal risk to humans due to small fangs and docile behavior. Its physiological adaptations—including higher metabolic rate, faster heart rate, and greater cold tolerance than its congener Trichonephila clavipes—suggest potential for continued northward range expansion.
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atrata
flower longhorn
Trigonarthris atrata is a species of flower longhorn beetle in the family Cerambycidae. It is found in North America and has been documented in the south-central United States, particularly in Oklahoma. The species is considered relatively uncommon and is attracted to sweet red wine and ethanol-based traps.
Trigonidomimus belfragei
Belfrage's Cricket
Trigonidomimus belfragei, commonly known as Belfrage's Cricket, is a species of cricket in the family Gryllidae, first described by Caudell in 1912. The species is classified within the subfamily Pentacentrinae, a group sometimes referred to as anomalous crickets. It occurs in parts of North America including Texas, Oklahoma, and Mexico. The genus Trigonidomimus is small and poorly documented, with limited biological information available for this species.
Zopherus concolor
concolor ironclad beetle
Zopherus concolor is a species of ironclad beetle in the family Zopheridae, native to North America. The species belongs to a genus of beetles adapted to wood-boring habits, with some Zopherus species historically used as living brooches. Field observations indicate nocturnal activity on dead conifer trunks, particularly Pinus edulis.