In T. ruricola and T. terricola, at least, there are two small dark, parallel, longitudinal stripes on anterior portion of carapace (often between the PLE's and fovea).
sepulchralis - USA (TX, southern OK, LA, AR, MO, MS, AL, northwestern FL, TN, NC. - a few found near the northeast coast, see map on PDF article below).
~ www.americanarachnology.org - PDF article "Trochosa sepulchralis, a senior synonym of Trochosa acompa, and the restoration of Trochosa abdita", includes information and drawings of sepulchralis and abdita.