Eosentomon kubotai Nakamura 2010, sp. nov.
Creators: name: Nakamura, Osami
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Protura
Eosentomidae
Eosentomon
Eosentomon kubotai

description: <i>Eosentomon kubotai</i> Nakamura sp. nov. Figs. 37–38; Table 15 <b>Type specimens.</b> Holotype female (NSMT –Ap 502), Goshogadani, Tsumori, Yukuhashi –shi, Fukuoka Prefecture, 33°40'31"N, 130°55'51"E, 100 m elevation, litter from a forest dominated by <i>P. densiflora</i>, 1-X-1988, T. Kubota leg. Paratypes: 3 females (NSMT –Ap 503–505), same date as for the holotype. <b>Other specimens examined.</b> One male, 2 females, 1 imago, 1 maturus junior, same data as for the holotype; one male, Miike –zan, Omuta –shi, Fukuoka Prefecture, 33°01'43"N, 130°30'14"E, 300 m elevation, 15-X-1988, litter of a forest dominated by <i>C. cuspidata</i> subsp. <i>cuspidata,</i> T. Kubota leg. <b>Description.</b> Body length 793 (624–975) µm. Head 112 (112–117) µm long, 78 (79–81) µm wide. Setae <i>aa</i>, <i>pa</i> and <i>m4</i> present, sensilla <i>as</i> and <i>ps</i> present (Fig. 37A); seta <i>sp</i> 1.1(1.2) times longer than <i>p</i>; sensilla <i>pp</i> rudimentary. Labral setae absent (Fig. 37B). A pair of extra setae present between both <i>rs</i> setae (Fig. 37B); <i>rs</i> inflated, longer than <i>sr</i> (Fig. 37B). On maxillary palpus (Fig. 37C) sensilla <i>md</i> and <i>ml</i> similar to each other in shape and length. On galea (Fig. 37D) digit O longer than M and I; M and I close to each other. Mandible with four teeth (Fig. 37E). Clypeal apodemes distinct (Figs. 37A, B). Pseudoculus 9 µm long, without inner structure (Fig. 37F), PR = 13. Foretarsus length (Figs. 37G, H) 76 (75–77) µm; claw 16 µm, TR = 4.9 (4.9–5.0); empodium 16 (14–16) µm, EU = 1.0 (0.9–1.0); sensillum <i>s</i> as long as or slightly longer than claw, 16 (16–18) µm. Sensillum <i>t1</i> closer to α <i>3</i> than <i>to</i> α <i>3’</i>, BS = 0.9 (0.9); <i>t2</i> thin; <i>t3</i> surpassing base of α <i>7</i>; <i>a</i> nearer to γ <i>1</i> than to γ <i>2</i>, reaching nearly to base of γ <i>2</i>; <i>b</i> surpassing base of β <i>6</i>; <i>c</i> slightly broadened; <i>d</i> reaching base of <i>t3</i>; <i>e</i> and <i>g</i> roundedly spatulate and long; <i>f1</i> thinly spatulate; <i>f2</i> thin, reaching base of γ <i>5</i>; <i>a'</i> slightly thick, reaching base of α <i>3’</i>; <i>b'1</i> nearer to δ <i>3'</i> than to δ <i>4’</i>; <i>b'2</i> thin; <i>c'</i> absent. Length of middle tarsus 36 (35–37) µm, length of claw 11 µm, empodium short (Fig. 37I), 2 (1–2) µm long; hind tarsus 46 (45–46) µm, claw 12 (12–13) µm, empodium short (Fig. 37J), 2 (1–2) µm; on hind tarsus (Fig. 37J) <i>D2</i> and <i>D4</i> thin spine. Tracheal camerae thick, distally contracted (Fig. 38A). Central lobe trapezoidal (Fig. 38B). Laterostigmata II– IV distinct, without inner structure. On female squama genitalis (Fig. 38C) caput processus duck's head-like; filum processus long. Male genitalis with long basiperiphallar setae. Chaetotaxy as in Table 15. Thoracic and abdominal chaetotaxy similar to <i>E. hitakami</i>, but abdominal sternites IX–X with two pairs of setae, <i>1</i> and <i>2</i>. <b>Diagnosis.</b> Among <i>Eosentomon</i> spp. possessing two anterior and nine posterior setae on abdominal sternite VIII, this new species is characterized by four setae on abdominal sternites IX–X (six setae in others) and the presence of extra setae between the <i>rs</i> setae (absent in others). This species is similar to <i>E. hitakami</i> in possessing short empodia on middle and hind tarsus, but differs in the presence of labral setae (absent in <i>E. hitakami</i>), pseudoculus without inner structure (with a central spot and weakly V-shaped structure in <i>E. hitakami</i>), and the linear shape of foretarsal sensillum <i>t3</i> (broadened in <i>E. hitakami</i>). <b>Etymology.</b> This specific name is dedicated to Mr. Tadashi Kubota, who kindly supplied me with materials from Kyushu, including the present new species. <b>Distribution.</b> Japan (Kyushu).
description: Published as part of <i>Nakamura, Osami, 2010, Taxonomic revision of the family Eosentomidae (Hexapoda: Protura) from Japan 2701, pp. 1-109 in Zootaxa 2701</i> on pages 65-67