Fig. 4 in Unveiling the morphology of the Oriental rare monotypic ant genus Opamyrma YAMANE, BUI & EGUCHI, 2008 (Hymenoptera: Formicidae: Leptanillinae) and its evolutionary implications, with first descriptions of the male, larva, tentorium, and sting apparatus

Fig. 4: Tentorium of Opamyrma hungvuong worker, nontype (AKY05vii17-06, China, Guangxi). (A) anterior part of dorsal sclerite of cranium in dorsal view; (B) part of dorsal sclerite of cranium around right antennal socket with anterior part of tentorium, in inner ventral view; (C) part of ventral sclerite of cranium with posterior part of tentorium in inner dorsal view; (D) right half of tentorium in dorsal view (lacking posterior tentorial arm). Abbreviations: Ata = anterior tentorial arm; Atp = anterior tentorial pit; Ct = corpotendon; Dta = dorsal tentorial arm; Ep = external plate; Ip = internal plate; Lclp = lateral portion of clypeus; Mdb = mandible; Occ = occipital carina; Pgr = postgenal ridge; Pta = posterior tentorial arm; Ptg = peritorular groove; Ptp = posterior tentorial pit; Tb = tentorial bridge.