Mizotrechus chontalesensis Erwin 2011

(Figs 5, 21). Size: See Appendix 1. Moderately sized for genus, ABL = 7.1 mm, SBL = 5.87 mm, TW = 2.29 mm. Color: see diagnosis, above. Luster: Head, pronotum, elytra, and legs shiny. Head: Labrum quadrate, apico-medially barely emarginate. Eye small and barely convex. Gena straight. Frons, occiput, and gena glabrous. Prothorax: Moderately narrow, narrowed slightly toward base, margin narrowly explanate, slightly wider before hind angle; surface punctulate, punctures widespread, very fine, glabrous. Pterothorax: Elytron barely convex, intervals nearly flat, all interneurs with well-impressed irregularly-spaced punctures, apex not prolonged, slightly rounded at extreme sutural apex. Legs: Normal in female; foreleg femur (Fig. 21) with slightly produced, short, arcuate ridge on postero-ventral margin at basal forth, not dentate; posterior trochanter tapered to rounded point in female, length half that of femur. Abdomen: Abdominal sterna moderately setiferous, densely so medially on II and III; sternum VII barely medially emarginate in female. Male genitalia: Unknown. Female genitalia: Not investigated; however, it is likely similar to that illustrated on Plate 11.