Eosentomon zhanjiangense , Zhang 1983
Creators: name: Nakamura, Osami
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Protura
Eosentomidae
Eosentomon
Eosentomon zhanjiangense

description: <i>Eosentomon zhanjiangense</i> Zhang Fig. 58, Table 24 <i>Eosentomon zhanjiangense</i>, Zhang, 1983: 165, 168, figs. 1–8; Yin, 1986: 135; Yin, 1999: 392, fig. 229. <b>Specimens examined.</b> Six males, 4 females, Mandabaru, Yonaguni Island, Okinawa Prefecture, 24°27'13"N, 122°57'30"E, 100 m elevation, litter from an evergreen broad-leaved forest, 21-V-2000, H. Mizushima leg. <b>Description based on Japanese specimens.</b> Body length 956–1235 µm. Head length 113–118 µm. Setae <i>pa</i> and <i>m4</i> present, but seta <i>aa</i> absent (Fig. 58A), sensilla <i>as</i> and <i>ps</i> present; seta <i>sp</i> 1.6–1.8 times longer than <i>p</i>; sensilla <i>pp</i> rudimentary. Labral setae present (Fig. 58B). Seta <i>rs</i> inflated, shorter than <i>sr</i> (Fig. 58B). On maxillary palpus (Fig. 58C) sensillum <i>md</i> as long as or slightly longer than <i>ml</i>. Digits on galea similar to each other in shape and length (Fig. 58D). Mandible with two apical and one subapical teeth (Fig. 58E). Clypeal apodemes thick (Figs. 58A, B). Pseudoculus circular, 13 µm long, without inner structure (Fig. 58F), PR = 9. Foretarsus length (Figs. 58G, H) 88–93 µm; claw 19–20 µm, TR = 4.6–5.0; empodium 18–20 µm, EU = 0.9– 1.0; sensillum <i>s</i> same length as claw. Sensillum <i>t1</i> halfway between α <i>3</i> and α <i>3'</i>, BS = 1.0–1.1; <i>t2</i> thin; <i>t3</i> reaching base of α <i>7</i>; <i>a</i> not reaching base of γ <i>2</i>; <i>b</i> linear; <i>c</i> not surpassing base of γ <i>3</i>; <i>d</i> slightly broadened and long, reaching nearly to base of <i>f2</i>; <i>e</i> and <i>g</i> spatulate and long; <i>f1</i> thin, surpassing base of γ <i>5</i>; <i>f2</i> thick, almost reaching level of δ <i>6</i>; <i>a'</i> reaching level of α <i>3’</i>; <i>b'1</i> broadened, surpassing base of δ <i>4'; b'2</i> thin, reaching base of <i>t3</i>; <i>c'</i> at almost same level with α <i>6</i>, broadened and surpassing base of α <i>7</i>. Length of middle tarsus 41–45 µm, length of claw 14–15 µm; hind tarsus 53–54 µm, claw 16 µm; empodia of both tarsi short, shorter than 1/5 of claw length (Fig. 58I), 1–3 µm long; on hind tarsus (Fig. 58I) <i>D2</i> and <i>D4</i> spine-like, <i>D4</i> thicker than <i>D2</i>, but more slender than <i>D5</i>. Tracheal camerae short and distally contracted (Fig. 58J). Central lobe sinuate, inner lines incised (Fig. 58K). Laterostigmata II–IV distinct (Fig. 58L), II with a faint spore, III–IV without inner structure. On female squama genitalis (Fig. 58M) caput processus thin and vent towards median of stylus, corpus processus dissolved, filum processus short, accessory sclerotization present. Male squama genitalis with short basiperiphallar setae. Chaetotaxy as in Table 24. On thoracic tergites II–III, <i>P1a</i> seta-like, posterior to <i>P1–P2</i>; <i>P2a</i> halfway between <i>P2</i> and <i>P3</i>. <i>P1a</i> on abdominal tergite I, <i>P1a</i> and <i>P2a</i> on II–VI and <i>P2a</i> on VII filiform and longer than <i>P1</i>; <i>P1a</i> on VII sensillum-like, shorter than one-fifth length of <i>P1</i>; these sensilla situated at hind margin. On tergite VIII (Fig. 58N) <i>P1a'</i> without basal dilatation and at almost same level with or slightly anterior to <i>P2</i>; <i>P2a</i> linear. <b>Remarks.</b> The foretarsus (88–93 µm long) of Japanese specimens was slightly shorter than Chinese one (98– 104 µm) (cf. Yin, 1999; Zhang, 1983), but this difference should be regarded as an individual variation. <b>Distribution.</b> China (Guangdong), and new to Japan (Yonaguni Island, Okinawa)
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 page 104
description: {"references": ["Zhang, Z. Y. (1983) Studies on Chinese Protura: two new species of Eosentomon from Guangdong. Contributions from Shanghai Institute of Entomology, 3, 165 - 169. (In Chinese with English abstract)", "Yin, W. Y. (1986) Three new species and a new record of Eosentomon from the Hainan Island, China (Protura, Eosentomidae). Contributions from Shanghai Institute of Entomology, 6, 135 - 140. (In Chinese with English summary).", "Yin, W. Y. (1999) Protura, Fauna Sinica, Arthropoda. Science Press, Beijing, China, 510 pp., 8 pls. (In Chinese with English summary)"]}