Morphological features of the head of Compsus auricephalus: (A–B) Texas, Garza Co. (TTU-Z_050014): (A) dorsal view (mf: median fovea; dlm: dorsolateral margin; vlm: ventrolateral margin), (B) lateral view (os: occipital suture); (C–D) Mississippi, Warren Co. (TTU-Z_219296): (C) head, anterior view (mf: median fovea; ms: median sulcus; ds: dorsolateral sulcus; ep: epistoma; eps: epistomal setae; np: nasal plate; apm: apical margin), (D) head, ventral view (prm: prementum; os: occipital suture; atp: anterior tentorial pit; ptp: posterior tentorial pits; gs: gular suture), (E) Mississippi, Washington County (CWOC0045), dorsal view with deciduous processes (dp); (F) Texas, Brooks County (CWOC0002) dorsal, scale bar 1 mm; (G) Texas, Mason Co. (TTU-Z_219308), dorsal view with deciduous processes (dp).