3D-reconstruction of ‡Amphientomum knorrei sp. nov. Internal view of head from left side, sagittal cut. Abbreviations: acl = anteclypeus, amdad = apodeme of mandibular adductor, asas = apodeme of salivary sclerite, ata = anterior tentorial arm, car = circumantennal ridge, cor = circumocular ridge. cr = coronal ridge, ct = corpotentorium, dta = dorsal tentorial arm, epr = epistomal ridge, ga = galea, ger = genal ridge, hy = hypopharynx, lap = labial palp, lb = labrum, lc = lacinia, md = mandible, pcl = postclypeus, pom = postmentum, por = postoccipital ridge, prm = prementum, pta = posterior tentorial arm, sas = salivary sclerite, sit = sitophore.