Taxonomic revision of the family Eosentomidae (Hexapoda: Protura) from Japan 2701
Nakamura, Osami
Zootaxa
2010
2010-12-03
2701
1
109
Nakamura
Nakamura
2010
[151,543,1065,1091]
Entognatha
Eosentomidae
Eosentomon
Animalia
Protura
64
65
Arthropoda
species
kubotai
sp. nov.
Figs. 37–38; Table 15
Type specimens. Holotypefemale ( NSMT–Ap 502), Goshogadani, Tsumori, Yukuhashi–shi, Fukuoka Prefecture, 33°40'31"N, 130°55'51"E, 100 melevation, litter from a forest dominated by P. densiflora, 1-X-1988, T. Kubotaleg. Paratypes: 3 females( NSMT–Ap 503–505), same date as for the holotype. Other specimens examined.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 melevation, 15-X-1988, litter of a forest dominated by C. cuspidatasubsp. cuspidata,T. Kubotaleg.
Description.Body length 793 (624–975) µm. Head 112 (112–117) µm long, 78 (79–81) µm wide. Setae aa, paand m4present, sensilla asand pspresent ( Fig. 37A); seta sp1.1(1.2) times longer than p; sensilla pprudimentary. Labral setae absent ( Fig. 37B). A pair of extra setae present between both rssetae ( Fig. 37B); rsinflated, longer than sr( Fig. 37B). On maxillary palpus ( Fig. 37C) sensilla mdand mlsimilar 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 sas long as or slightly longer than claw, 16 (16–18) µm. Sensillum t1closer to α 3than toα 3’, BS = 0.9 (0.9); t2thin; t3surpassing base of α 7; anearer to γ 1than to γ 2, reaching nearly to base of γ 2; bsurpassing base of β 6; cslightly broadened; dreaching base of t3; eand groundedly spatulate and long; f1thinly spatulate; f2thin, reaching base of γ 5; a'slightly thick, reaching base of α 3’; b'1nearer to δ 3'than to δ 4’; b'2thin; c'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) D2and D4thin 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. FIGURE 37. Eosentomon kubotai sp. nov., holotype, female. A, dorsal view of head, left side; B, labrum and rostral region; C, maxillary palpus; D, galea; E, mandible; F, pseudoculus; G, interior view of foretarsus; H, exterior view of foretarsus; I, distal part of middle tarsus; J, dorsal view of hind tarsus. Scales: 20 µm. FIGURE 38. Eosentomon kubotai sp. nov., holotype, female. A, tracheal camerae on thoracic tergite III; B, central lobe on abdominal tergite VI; C, female squama genitalis; D, posterior setae on abdominal tergite VI; E, posterior setae on abdominal tergite VII; F, hind margin of abdominal tergite VIII. Scales: 20 µm. Chaetotaxy as in Table 15. Thoracic and abdominal chaetotaxy similar to E. hitakami, but abdominal sternites IX–X with two pairs of setae, 1and 2.
Diagnosis.Among Eosentomonspp.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 rssetae (absent in others). This species is similar to E. hitakamiin possessing short empodia on middle and hind tarsus, but differs in the presence of labral setae (absent in E. hitakami), pseudoculus without inner structure (with a central spot and weakly V-shaped structure in E. hitakami), and the linear shape of foretarsal sensillum t3(broadened in E. hitakami).
Etymology.This specific name is dedicated to Mr. Tadashi Kubota, who kindly supplied me with materials from Kyushu, including the present new species.
Distribution. Japan(Kyushu).
1988-10-01
NSMT, T
Kubota
Goshogadani
100
33.675278
Yukuhashi
19
130.93083
Tsumori
64
65
1
Fukuoka
holotype
[199,1031,1244,1269]
NSMT
64
65
3
3
Fukuoka
paratype
[662,1432,1280,1304]
1988-10-01
NSMT, T
Kubota
Goshogadani
100
33.675278
Yukuhashi
19
130.93083
Tsumori
64
65
2
2
Fukuoka
1988-10-15
300
33.02861
Omuta
20
130.50389
Miike
64
65
1
1
Fukuoka