Review of Alaskaentomon (Protura: Acerentomidae, Nipponentominae)

摘要

Our reexamination of Alaskaentomon Nosek, 1977 demonstrated that the type species, Alaskaentomon fjellbergi Nosek, 1977, and Alaskaentomon condei Nosek, 1981 are united in the presence of two granulated appendices on the calyx of the maxillary gland, liform sensillum t1 and very long sensillum a on foretarsus, presence of two pairs of A-setae on mesonotum and metanotum, and presence of medial posterior (Pc) seta on tergite VII and sternites VIDVII. They differ from each other in the position of foretarsal sensilla d and aO, number of setae on tergite VII and sternites IIDIII, and position of P3 on tergites IIDVI. The original descriptions are corrected and supplemented with new characters, including head chaetotaxy, seta length and porotaxy