Eosentomon juni Imadaté, 1994b: 42 Abies sachalinensis Picea jezoensis Sasa sp. A. sachalinensis P. jezonensis Alnus maximowiczii B. ermanii Sasa sp. F. crenata F. crenata Taxonomic revision of the family Eosentomidae (Hexapoda: Protura) from Japan 2701 Nakamura, Osami Zootaxa 2010 2010-12-03 2701 1 109 Imadate Imadate [151,470,151,177] Entognatha Eosentomidae Eosentomon Animalia Protura 58 59 Arthropoda species juni   Fig. 32      Eosentomon juni Imadaté, 1994b: 42, figs. 1–4.  Specimens examined.Specimens deposited in NSMT: holotypemale, NSMT–Ap 428, Mt. Poroshiri–dake, Niikappu, Hokkaido, 22-VIII-1977, J. Ohnishi leg.; allotypefemale, NSMT–Ap 429, Mt. Kirigishi–yama, Ashibetsu, Hokkaido, 1-X-1989, Y. Nagao leg. Two males, 1 maturus junior, 1 larvaI, Kutsugata. Rishiri Island, Hokkaido, 45º10'48"N, 141º10'38"E, 200 melevation, litter of a forest dominated by  Abies sachalinensisand  Picea jezoensis, with a ground cover of  Sasasp., 21-VI-2000, T. Maehara leg.; 4 males, 1 female, 2 maturi juniores, Kutsugata, Rishiri Island, Hokkaido, 45º10'48"N, 141º10'38"E, 400 melevation, litter of a forest dominated by  A. sachalinensisand  P. jezonensis, 20-VI-2000, T. Maehara leg.; 1 female, 1 larvaII, Kutsugata, Rishiri Island, Hokkaido, 45º10'48"N, 141º10'38"E, 600 melevation, litter of a forest dominated by  Alnus maximowicziiand  B. ermanii, with a ground cover of  Sasasp., 22-VI-2000, T. Maehara leg.; 1 male, 1 female, 2 larvaeII, 1 larvaI, Kumagera–no–mori, Mt. Kushiishi–yama, Ajigasawa–machi, Aomori Prefecture, 40º31'06"N, 140º06'17"E, 520 melevation, litter of a forest dominated by  F. crenata, 2-X-1999, H. Tamura et al.leg.; 1 male, 1 larvaII, Mt. Kushiishi–yama, Ajigasawa–machi, Aomori Prefecture, 40º31'18"N, 140º06'33"E, 630 melevation, litter of a forest dominated by  F. crenata, 3-X-1999, H. Tamura et al.leg.   Additions to description.On head, sensilla ppdistinct ( Fig. 32A), 3 µm long. Labral setae present ( Fig. 32B). Seta rssimple, shorter than sr( Fig. 32B). On galea ( Fig. 32C) digit O longer than M and I; M and I similar to each other in shape and length. Mandible with two apical and one subapical teeth ( Fig. 32D). On hind tarsus D2and D4spine-like, D4slightly thicker than D2, but more slender than D5. Central lobe incised, but very weak and often invisible ( Fig. 32E). Male genitalis with long basiperiphallar setae. On abdominal tergite VIII ( Fig. 32F) P1a'with slight basal dilatation and anterior to P2; P2alinear, 7 µm long.   Remarks.In his original description, Imadaté (1994c)described P1a'on the abdominal tergite VIII as not basally dilated. Close examination of the holotypeand other specimens revealed that the setae have a slight basal dilatation. In Larva II, P5on the abdominal tergites II–III is anteriorly displaced, on the metanotumon being at the same level A4( Fig. 32G).   Distribution. Japan( Hokkaidoand Honshu).