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FIGURES 7–10 in Three new species of Coecobrya (Collembola: Entomobryidae) from southern and northwest China
No full textFIGURES 7–10. Coecobrya xui sp. nov.: 7–9, ventral tube. 7, anterior face; 8, posterior face; 9, lateral flap; 10, posterior side of manubrium.Published as part of Zhang, Feng & Dong, Rui-Rui, 2014, Three new species of Coecobrya (Collembola: Entomobryidae) from southern and northwest China, pp. 260-274 in Zootaxa 3760 (2) on page 264, DOI: 10.11646/zootaxa.3760.2.6, http://zenodo.org/record/22946
Coecobrya qin Zhang & Dong, 2014, sp. nov.
No full textCoecobrya qin sp. nov. Figs 20–31, Tab. 1 Types. Holotype: female on slide, China: Mei county: Tangyu town: Long Mountain, alt. 683m, 34 ˚07’ 48 ’’N, 107 ˚ 53 ’ 44 ’’E, in litter of mixed hardwood-conifers forest, 8.viii. 2010, F. Zhang, Z.-X. Pan and D.- Y. Yu leg. (sample number C 9616). Paratypes: female on slide, same data as holotype. All deposited in NJAU. Description. Body length up to 2.09 mm. Body white. Antenna 1.95 times as long as cephalic diagonal. Antennal segments ratio as I: II: III: IV = 1: 2.00: 1.74: 3.47. Smooth spiny mic at base of antennae 3 dorsal and 3 ventral on Ant.I, 2 internal, 1 external and 2 ventral on Ant.II. Ant.II distally with 1 rod-like, unexpanded S. Chaetae 2 and 3 of Ant. III organ rod-like. Antennae without long smooth straight chaetae. Eyes 3 + 3. Prelabral and labral chaetae 4 / 5, 5, 4, all smooth; five chaetae of the first row subequal. Papilla E with 4 guard chaetae; lateral process of labial palp slightly thicker than normal chaetae, with tip reaching beyond apex of labial papilla (Fig. 20). Subapical chaeta of maxillary outer lobe thicker than apical one; 3 smooth sublobal hairs on maxillary outer lobe. Labial chaetae as MREL 1 L 2, all smooth except R, R/M= 0.6; chaetae H 1-2, X, X 2-4 ciliate. Cephalic groove posterior to labium with 7 chaetae, 2 of them smooth (Fig. 21). Clypeus with 12 ciliate chaetae (Fig. 22). Dorsal cephalic chaetotaxy with 4 antennal, 3 median (M) and 5 sutural (S) mac (Fig. 23). Trochanteral organ with 12–13 smooth spiny chaetae; 10 in arms and 2–3 between them (Fig. 24). Partial inner differentiated tibiotarsal chaetae with ciliations closely appressed to axis, appearing smooth at low magnification. Most distal tibiotarsal whorl with 10 chaetae. Unguis with 3 inner teeth; basal paired teeth unequal at 0.5 distance from base of inner edge. Unguiculus with a large outer tooth. Tenent hair clavate (Fig. 25). Abd.IV 2.43 times as Abd.III in length along dorsal midline. Ventral tube anteriorly with 2 + 2 large ciliate chaetae, other chaetae not clearly seen; posteriorly with 11 chaetae, distal four smooth and arranged in a row (Fig. 26); each lateral flap with 7–8 chaetae, 2–3 of them weakly ciliate (Fig. 27). Manubrium without smooth chaetae and anterior side with 12 distal ciliate chaetae in a row. Manubrial plaque with 2 + 2 pseudopores and 3 + 3 ciliate chaetae. Dental lobe with about 8 ciliate chaetae (Fig. 28). Distal smooth part of dens slightly longer than mucro in length. Mucronal basal spine reaching tip of tooth. Th.II with 1 medio-medial (m 1), 3 medio-lateral (m 4, m 4 i, m 4 p), 15 (14) posterior mac, 1 ms and 2 s-chaetae; mac p 3 p rarely absent. Th.III with 23 (22) mac and 2 lateral s-chaetae; mac a 4 i and m 5 i absent (Fig. 29). Abd.I with 6 (a 3, m 2–4, m 2 i, m 4 p) mac, 1 ms and 1 s-chaeta; ms internal to s-chaeta. Abd.II with 4 (m 3, m 3 e, m 3 ep, m 3 ei) central, 1 (m 5) lateral mac and 2 s-chaetae. Abd.III with 2 (a 2, m 3) central, 3 (am 6, pm 6, p 6) lateral mac and 2 s-chaetae. Abd.IV with 7 central (I, M, B 4–6, A 4, A 6), 6 lateral mac (D 3, E 2–4, E 2 p, F 1) and about 17 s-chaetae (Fig. 30). Abd.V with 3 s-chaetae (Fig. 31). Ecology. In litter of mixed hardwood-conifers forest. Etymology. Named after the first Chinese dynasty “ Qin ”, where type locality locates. Remarks. Coecobrya qin sp. nov. is the second species of the genus with 3 + 3 ocelli as in C. mulun Zhang, Qu & Deharveng, 2010. It differs from the latter in body white, labial chaeta R ciliate, presence of ciliate chaeta X 3 posterior to labium, a large outer tooth on unguiculus, and tergal chaetotaxy (Table 1). The discovery of this new species brings confusion to the separation of tenebricosa- and boneti -groups defined by Zhang et al. (2011 a). Eyed Coecobrya species belonging to boneti -group possess smooth or serrate outer edge on unguiculus, but C. qin sp. nov. has a large outer tooth as in tenebricosa -group. It is now unavailable to erect the third group of the genus unless more cases founded.Published as part of Zhang, Feng & Dong, Rui-Rui, 2014, Three new species of Coecobrya (Collembola: Entomobryidae) from southern and northwest China, pp. 260-274 in Zootaxa 3760 (2) on pages 265-269, DOI: 10.11646/zootaxa.3760.2.6, http://zenodo.org/record/22946
Coecobrya xui Zhang & Dong, 2014, sp. nov.
No full text<i>Coecobrya xui</i> sp. nov. <p>Figs 1–19, Tab. 1</p> <p> <b>Types.</b> Holotype: male on slide, China: Guangdong: He Mountain, in soil of secondary eucalypt forest, 22.x.2012, G.-L. Xu leg. Paratypes: 3 females on slide, same data as holotype. All deposited in NJAU.</p> <p> <b>Description.</b> Body length up to 0.93 mm. Body white.</p> <p>Antenna 1.44–1.80 times as long as cephalic diagonal. Antennal segments ratio as I: II: III: IV = 1: 1.59– 1.80: 1.21–1.44: 2.76–3.00. Smooth spiny mic at base of antennae 3 dorsal and 2 ventral on Ant.I, 1 internal, 1 external and 1 ventral on Ant.II. Ant.II distally with 1 expanded S. Chaetae 2 and 3 of Ant.III organ slightly expanded; chaeta 8 spiny; chaeta 9 straight and spiny (Fig. 1). Subapical organite of Ant.IV slender, distally swollen. Antennae without long smooth straight chaetae.</p> <p>Eyes absent. Prelabral and labral chaetae 4/ 5, 5, 4, all smooth; five chaetae of the first row subequal. Papilla E with 4 guard chaetae; lateral process of labial palp thick as normal chaetae, with tip reaching beyond apex of labial papilla. Subapical chaeta of maxillary outer lobe slightly larger than apical one; 3 smooth sublobal hairs on maxillary outer lobe. Labial chaetae as MREL1L2, all smooth, R/M=0.7; chaetae X, X2 and X4 ciliate; chaeta X3 absent; a ciliate chaeta rarely present between X2 and H2. Cephalic groove posterior to labium with 7(6) chaetae, 4 of them smooth (Fig. 2). Clypeus with 7 smooth chaetae (Fig. 3). Dorsal cephalic chaetotaxy with 4 antennal, 3 median (M) and 3 sutural (S) mac (Fig. 4).</p> <p>Trochanteral organ with 7–8 smooth spiny chaetae; 5–6 in arms and 2–3 between them (Fig. 5). Partial inner differentiated tibiotarsal chaetae ciliate with ciliations not closely appressed to axis. Most distal tibiotarsal whorl with 10 chaetae. Unguis with 3 inner teeth; basal paired teeth unequal at 0.45 distance from base of inner edge. Unguiculus with a large outer tooth. Tenent hair I–II pointed, III clavate (Fig. 6). Abd.IV 2.75–3.06 times as Abd.III in length along dorsal midline. Ventral tube anteriorly with 5+5 ciliate chaetae (Fig. 7); posteriorly with 4 smooth chaetae, proximal two much smaller (Fig. 8); each lateral flap with 7 smooth chaetae (Fig. 9). Manubrium anteriorly with 8 ciliate chaetae in middle line and 6 distal ciliate chaetae in a row (Fig. 11); posterior side with 1+1 basal pseudopore, and 2+2 pseudopores and 2+2 ciliate chaetae in manubrial plaque. Dental lobe with 5 ciliate chaetae (Fig. 10). Distal smooth part of dens slightly longer than or subequal to mucro in length. Mucronal basal spine reaching tip of tooth (Fig. 12).</p> <p>Th.II with 3 medio-medial (m1, m2, m 2i), 2 medio-lateral (m4, m4p), 16 posterior mac, 1 ms and 2 s-chaetae (Fig. 14). Th.III with 22–23 mac and 2 lateral s-chaetae; mac m 5i and a 6i absent (Fig. 15). Abd.I with 5 (m2–4, m 2i, m4p) mac, 1 ms and 1 s-chaeta (Fig. 16). Abd.II with 3 (m3, m3e, m3ep) central, 1 (m5) lateral mac and 2 schaetae (Fig. 17). Abd.III with 2 (a2, m3) central, 2 (am6, pm6) lateral mac and 2 s-chetae (Fig. 18). Abd.IV with 5 central (I, M, B4, B5, A6), 4 lateral mac (D3, E2–4) and 9 s-chaetae; 7 s-chaetae much longer than others (Fig. 19). Abd.V with 3 s-chaetae; lateral sens more anterior than normal position (Fig. 13).</p> <p> <b>Ecology.</b> In soil of secondary eucalypt forest.</p> <p> <b>Etymology.</b> Named after G.-L. Xu who collected the animals.</p> <p> <b>Remarks.</b> This new species from South China is closest to Tibetan <i>Coecobrya huangi</i> Chen and Christiansen, 1997 in absence of eyes, claw structure, manubrial smooth chaetae absent, 5+5 mac on Abd.I, 2+2 central mac on Abd.III and 5+5 central and 4+4 lateral mac on Abd.IV, but differs from the latter in 3 sutural and 3 group (Gr.) II mac on dorsal head, ciliate X, X2 and X4 on ventral head, 2 medio-lateral mac on Th.II, absence of mac a 6i on Th.III, and mic p6 on Abd.III (Table 1).</p> <p>Species eyes tdc lotu Ventral tube msc Manubrial plaque</p> <p>anterior posterior flap pseudopores chaetae continued.</p> <p>Species Cephalic chaetotaxy Chaetae on the ventral side of head continued.</p>Published as part of <i>Zhang, Feng & Dong, Rui-Rui, 2014, Three new species of Coecobrya (Collembola: Entomobryidae) from southern and northwest China, pp. 260-274 in Zootaxa 3760 (2)</i> on pages 261-262, DOI: 10.11646/zootaxa.3760.2.6, <a href="http://zenodo.org/record/229466">http://zenodo.org/record/229466</a>
Coecobrya draconis Zhang & Dong, 2014, sp. nov.
No full textCoecobrya draconis sp. nov. Figs 32–46, Tab. 1 Types. Holotype: male on slide, China: Guangxi: Huanjiang: Dacai town: Shenglonggong, alt. 222m, 24 ˚ 46 ’ 24 ’’N, 108 ˚ 23 ’07’’E, in cave, 2.xii. 2012, F. Zhang and Z.-H. Li leg. (sample number GX-SLD- 1). Paratypes: 3 females on slide and 2 in alcohol, same data as holotype. All deposited in NJAU. Description. Body length up to 1.33 mm. Body with scattered orange pigment (Fig. 32). Antenna 2.07–2.11 times as long as cephalic diagonal. Antennal segments ratio as I: II: III: IV = 1: 1.38– 1.64: 1.19–1.24: 2.25–2.71. Smooth spiny mic at base of antennae 3 dorsal and 2 ventral on Ant.I, 1 internal, 1 external and 1 ventral on Ant.II. Ant.II distally with 1 rod-like, expanded S. Chaetae 2 and 3 of Ant.III organ expanded; chaeta 8 dagger-like; chaeta 9 as long, thin sens (Fig. 33). Subapical organite of Ant.IV slender, distally swollen. Antennae without long smooth straight chaetae. Eyes absent. Prelabral and labral chaetae 4 / 5, 5, 4, all smooth; five chaetae of the first row subequal. Papilla E with 3 guard chaetae; lateral process of labial palp thick as normal chaetae, with tip reaching beyond apex of labial papilla (Fig. 34). Subapical chaeta of maxillary outer lobe slightly thicker than apical one; 3 smooth sublobal hairs on maxillary outer lobe. Labial chaetae as MREL 1 L 2, all smooth except R, R/M= 0.7; chaetae H 1-4 smooth and other posterior ones ciliate; X, X 2 and X 4 present. Cephalic groove posterior to labium with 7 chaetae, G 1 smooth and others ciliate (Fig. 35). Clypeus with 7 ciliate chaetae (Fig. 36). Dorsal cephalic chaetotaxy with 4 antennal (An), 3 median (M) and 5 sutural (S) mac (Fig. 37). Trochanteral organ with 10–13 smooth spiny chaetae; 8−10 in arms and 2–3 between them (Fig. 38). Partial inner differentiated tibiotarsal chaetae ciliate with ciliations not closely appressed to axis. Most distal tibiotarsal whorl with 10 chaetae. Unguis with 3 inner teeth; basal paired teeth unequal at 0.25 distance from base of inner edge. Unguiculus outer edge smooth and inner edge truncate. All tenent hair pointed (Fig. 39). Abd.IV 3.27–3.75 times as Abd.III in length along dorsal midline. Ventral tube anteriorly with 5 + 5 large ciliate chaetae (Fig. 40); posteriorly with 6 proximal ciliate and 2 distal smooth chaetae; each lateral flap with 5–6 smooth and 0–3 ciliate chaetae (Fig. 41). Manubrium without smooth chaetae and anterior side with 8 distal ciliate chaetae in a row. Manubrial plaque with 2 + 2 pseudopores and 4 + 4 ciliate chaetae. Distal smooth part of dens 0.7 times of mucro in length. Mucronal basal spine reaching tip of tooth (Fig. 42). Th.II with 3 medio-medial (m 1, m 2, m 2 i), 3 medio-lateral (m 4, m 4 i, m 4 p), 20−22 posterior mac, 1 ms and 2 schaetae. Th.III with about 34 mac and 2 lateral s-chaetae (Fig. 43). Abd.I with 6 (a 3, m 2–4, m 2 i, m 4 p) mac, 1 ms and 1 s-chaeta. Abd.II with 3 (a 2, m 3, m 3 e) central, 1 (m 5) lateral mac and 2 s-chaetae. Abd.III with 1 (m 3) central, 3 (am 6, pm 6, p 6) lateral mac and 2 s-chaetae (Fig. 44). Abd.IV with 4 central (M, B 4–5, A 6), 7 lateral mac (D 3, E 2–4, E 2 p, F 1, De 3) and about 13 s-chaetae; two s-chaetae much shorter (Fig. 45). Abd.V with 3 s-chaetae (Fig. 46). Ecology. In cave. Etymology. Named after the cave name “Shenglong” (draconis), which means dragon in Chinese. Remarks. Coecobrya draconis sp. nov. is the first cave species in the genus reported from China. It is characterized by distal unpaired tooth closer to paired ones on unguis, smooth outer edge and truncate inner edge on unguiculus, 4 smooth chaetae posterior to labium, presence of mac p 5 on Th.II, and 4 + 4 central and 7 + 7 lateral mac on Abd. IV. It is similar to C. communis in absence of eyes and manubrial smooth chaetae, and chaetotaxy of Abd.I, Abd.III and lateral Abd.IV. It differs from the latter in claw structure, absence of postlabial chaeta X3, 4+ 4 chaetae on manubrial plaque, and chaetotaxy of lateral Th.III, Abd.II and central Abd.IV (Table 1).Published as part of Zhang, Feng & Dong, Rui-Rui, 2014, Three new species of Coecobrya (Collembola: Entomobryidae) from southern and northwest China, pp. 260-274 in Zootaxa 3760 (2) on pages 270-273, DOI: 10.11646/zootaxa.3760.2.6, http://zenodo.org/record/22946
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