Anillinus arenicollis Harden & Caterino 2024

Anillinus arenicollis Harden & Caterino, 2024 Figs 21 M, 24 K, 34 B Anillinus arenicollis Harden & Caterino, 2024: 18. GenBank. OR 853123, OR 839200, OR 838072, OR 839197, OR 839198, OR 853122, OR 839199, OR 839746, OR 837940, OR 838098, OR 838277. Diagnosis. Robust, dorsoventrally flattened, and parallel-sided (Fig. 34 B). Dorsal surfaces of head and pronotum entirely covered in microsculpture. Males with both protarsomeres 1 and 2 expanded and dentate on inner margin with ventral adhesive setae. Male metafemora swollen with prominent tooth on posterior margin, median lobe of male aedeagus narrow and long with blocky apex that is deflexed ventrally. Female spermatheca (Fig. 21 M) long, stem ribbed, not coiled proximally. Spermathecal duct long and coiled. Distribution. Known from a small area within the boundaries of the Carolina Sandhills National Wildlife Refuge in Chesterfield Co., SC. Sympatry. Members of this species have not been collected with other species of anillines. Natural history. The first specimen collected was in a sample of sifted litter collected in February. All other known specimens were collected in buried pipe traps set in sandy soil. Further litter sampling at the only known locality failed to produce further specimens, and members of this species are presumably endogean in habit.