Yamatentomon brevisetum Szeptycki & Imadaté, 1987

Nakamura, Osami, 2025, Review of Japanese species of the genus Yamatentomon (Protura, Acerentomidae), with supplementary notes on Y. brevisetum from North Korea, Zootaxa 5693 (3), pp. 357-379 : 375-377

publication ID

https://doi.org/10.11646/zootaxa.5693.3.2

publication LSID

lsid:zoobank.org:pub:1EC5FB9B-D5CF-440C-9F44-D01EDFD605E2

DOI

https://doi.org/10.5281/zenodo.17322352

persistent identifier

https://treatment.plazi.org/id/DC3E87A4-FF96-FF84-4FCD-FE87FB82E18A

treatment provided by

Plazi

scientific name

Yamatentomon brevisetum Szeptycki & Imadaté, 1987
status

 

Yamatentomon brevisetum Szeptycki & Imadaté, 1987 View in CoL

Figs. 11–12 View FIGURE 11 View FIGURE 12

Yamatentomon breviseta [ sic] Szeptycki & Imadaté, 1987, pp. 172–176, figs. 11–17.

Yamatentomon brevisetum, Szeptycki, 2007, p. 97 View in CoL .

Material examined. Holotype female (NSMT-Ap 108), Kymgang-san Mts. , Ou-Kymgang, Korea, pine forest with very rich undergrowth, 30-VI-1981, Szeptycki & Weiner leg.

Diagnosis. Cephalic additional setae d6 absent; anterior setae A1 absent, A4' present on tergite VII; posterior accessory setae on tergites II–VI short, sensilliform, about one-seventh of P 1 in length; P1a' present on tergite VI.

Supplementary notes on description. Cephalic setae l3, sd4, and sd5 setiform, l3 9 μm long, sd4 and sd5, 13 μm; additional setae d6 absent ( Fig. 11A View FIGURE 11 ); seta d7 and sd7 subequal in length, 24 μm; pores fp and cp present ( Fig. 11A View FIGURE 11 ); sensilla on maxillary palpus similar in length, 8 μm; dorsal sensillum slender ( Fig. 11B View FIGURE 11 ), ventral one broadened proximally ( Fig. 11C View FIGURE 11 ); praelabium with fringe at anterior part, labial palpus with slender sensillum ( Fig. 11D View FIGURE 11 ). Length of pronotal setae 1 36 μm, about 1.3 times longer than setae 2, 28 μm. Foretarsal setae β1 and δ4 long, setiform; β1 length 20 μm, 1.3 times longer than δ1; δ4 long 28 μm, about twice the length of δ1; δ1–δ3 and δ5 short, setiform, 15–16 μm; pores present near sensilla c and t3, respectively ( Fig. 11E View FIGURE 11 ). Sternite II with three anterior setae ( Ac and A2) and five posterior setae ( Fig. 12E View FIGURE 12 ). Mesonotum with pores al and sl ( Fig. 12A View FIGURE 12 ); metanotum with sl ( Fig. 12A View FIGURE 12 ); prosternum without pores; mesosternum and metasternum with a group of three adjacent sc ( Fig. 12D View FIGURE 12 ). Tergite I with pore spm; II–VI with spm and al ( Fig. 12B, H View FIGURE 12 ); VII with spm, psl and al ( Fig. 12C View FIGURE 12 ). Sternites I, II, IV, and V with single spm ( Fig. 12E, G View FIGURE 12 ); III with a pair of spsm ( Fig. 12F View FIGURE 12 ); VI–VII with a pair of spsm and a group of adjacent three sam pores on or near connecting line ( Fig. 12H, I View FIGURE 12 ). Abdominal segment XII with dorsal central pore and a pair of ventral anterolateral pores ( Fig. 12J, K View FIGURE 12 ). Central part of ventral hind margin of XII with fine teeth ( Fig. 12K View FIGURE 12 ).

Notes. Szeptycki & Imadaté (1987) described the chaetotaxy of sternite II as having five anterior setae ( Ac, A2, A3); however, this examination revealed that there are just three anterior setae ( Ac, A2) ( Fig. 12E View FIGURE 12 ).

Distribution. North Korea (Kymgang-san Mts.), known only from the type locality.

Kingdom

Animalia

Phylum

Arthropoda

Class

Protura

Order

Protura

Family

Acerentomidae

Genus

Yamatentomon

Loc

Yamatentomon brevisetum Szeptycki & Imadaté, 1987

Nakamura, Osami 2025
2025
Loc

Yamatentomon brevisetum

Szeptycki, A. 2007: 97
2007
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