BackgroundThe Ozark Mountains are a region with high endemism and biodiversity, yet few invertebrate inventories have been made and few sites extensively studied. We surveyed a site near Steel Creek Campground, along the Buffalo National River in Arkansas, using twelve trap types – Malaise traps, canopy traps (upper and lower collector), Lindgren multifunnel traps (black, green, and purple), pan traps (blue, purple, red, white, and yellow), and pitfall traps – and Berlese-Tullgren extraction for eight and half months.New informationWe provide collection records of beetle species belonging to eight families collected at the site. Thirty one species represent new state records: (Buprestidae) Actenodes
acornis, Agrilus
cephalicus, Agrilus
ohioensis, Agrilus
paracelti, Taphrocerus
nicolayi; (Carabidae) Agonum
punctiforme, Synuchus
impunctatus; (Curculionidae) Acalles
clavatus, Acalles
minutissimus, Acoptus
suturalis, Anthonomus
juniperinus, Anametis
granulata, Idiostethus
subcalvus, Eudociminus
mannerheimii, Madarellus
undulatus, Magdalis
armicollis, Magdalis
barbita, Mecinus
pascuorum, Myrmex
chevrolatii, Myrmex
myrmex, Nicentrus
lecontei, Otiorhynchus
rugosostriatus, Piazorhinus
pictus, Phyllotrox
ferrugineus, Plocamus
hispidulus, Pseudobaris
nigrina, Pseudopentarthrum
simplex, Rhinoncus
pericarpius, Sitona
lineatus, Stenoscelis
brevis, Tomolips
quericola. Additionally, three endemic carabids, two of which are known only from the type series, were collected.