Entomobrya dingi Ma & Shi, 2018, sp. nov.
Creators: name: Yitong Ma
name: Shidi Shi
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Entomobrya
Entomobrya dingi

description: Entomobrya dingi sp. nov.
urn:lsid:zoobank.org:act:8B3E500B-6261-4944-9A11-D22FE05D1B82
Figs 11 ̅15, Table 3
Diagnosis
Ground colour yellowish and no obvious patches or stripes; head with 8 mac in sutural area and 8–9 mac in Gr. II; 8–10 mac on Abd. I; 5 central mac on Abd. II & III, 18–26 central mac on Abd. IV.
Etymology
The new species is named after Fudong Ding, who collected the specimens.
Type material
Holotype
CHINA: ♀ on slide, Yuanlong Village, Yongfeng Town, Zhaoyang District, Zhaotong City, Yunnan Province, 27°17′25″ N, 103°39′09″ E, in litter of maize, with aspirator, 1 Aug. 2014, Fudong Ding leg. (Nantong University, collection number 1149).
Paratypes
CHINA: 9 ♀♀ on slides, same collecting data as for holotype.
Description
MEASUREMENT. Body length up to 1.66 mm.
COLOUR. Ground colour yellowish. Eyepatches dark blue. Blue pigment present on distal part of each segment of antenna and lateral side of Th. II–III (Fig. 11 A–B).
HEAD. Antenna 0.43–0.53 times as long as body. Antennal segments ratio as I: II: III: IV = 1.00:1.67– 1.96: 1.60–1.83: 2.05–2.74. Distal part of Ant. IV with many sensory chaetae, normal ciliate chaetae and apical bulb bilobed (Fig. 12A). Lateral process (l.p.) of labial palp curved with tip not reaching apex of same papilla (Fig. 12B). Subapical chaeta of maxillary outer lobe subequal to apical one, 3 smooth hairs on sublobal plate (Fig. 12C). Labial chaetae MREL1L2, all ciliate; chaeta R 0.56–0.68 as long as chaeta M (Fig. 12D). Labral chaetae 4/5, 5, 4, prelabral chaetae ciliate and other smooth; labral papillae 4 and each with 3–4 minute denticles (Fig. 12E). Clypeus with 14–16 ciliate chaetae (Fig. 12F). Dorsal cephalic chaetotaxy with 4 antennal (An), 4 median (M) and 8 sutural (S) mac, 8–9 mac in Gr. II (Fig. 12G); interocular chaetae as p, q, r, s, t (Fig. 12H).
THORAX. Th. II with 2(3) (m1, m2, m 2i rarely present) medio-medial, 2 (m4, m 4i) medio-sublateral, 19–27 posterior mac, 1 ms and 2 sens. Th. III with 27–31(34) mac and 2 sens (Fig. 13A). Coxal macrochaetal formula as 2 (2 pseudopores)/ 4+1, 2–3 (2 pseudopores) / 4+2 (2 pseudopores) (Fig. 13B– D). Trochanteral organ with 13–22 chaetae (Fig. 13E). Tenent hair slightly longer than inner side of unguis, with tip strongly clavate. Unguis with 4 inner teeth, basal pair located 0.45̅0.50 distance from base of inner edge of unguis, distal unpaired two respectively at 0.68̅0.73 and 0.84̅0.87 distance from base. Unguiculus acuminate with outer edge serrate (Fig. 13F).
ABDOMEN. Abd. IV 2.82–3.85 times as Abd. III in length along dorsal midline. Abd. I with 8̅10 (m2, m3, m4, m 4i, m4p, a1, a2, a3, a5, a 5i, m 4i and a 5i sometimes absent) mac, 1 ms and 1 sens; sens inner to ms. Abd. II with 5 (a2, a3, m3e, m3ep, m3) central, 1 (m5) lateral mac and and 2 sens. Abd. III with 5 (a1, a2, a3, m3, m3e) central, 3 (am6, pm6, p6) lateral mac and 1 ms and 2 sens (Fig. 14A). Abd. IV with 18̅26 central and 7̅12 lateral mac (Fig. 14B). Abd. V with 3 sens (Fig. 14C–D). Ventral tube with 14–16 ciliate chaetae on anterior face (Fig. 15A), 2 smooth and 9̅14(6) ciliate or much ciliate chaetae on posterior face (Fig. 15B), 3̅4 smooth and 4̅7 ciliate chaetae on each lateral flap (Fig. 15C). Manubrial plaque with 4̅5 ciliate chaetae and 2 pseudopores on each side (Fig. 15D). Distal smooth part of dens about 2.67–3.70 times as long as mucro. Mucro bidentate and subapical tooth smaller than or equal to apical tooth. Basal spine almost reaching apex of subapical tooth (Fig. 15E).
Remarks
The colour pattern of the new species is simple and there is only a little pigment on the body. It is similar to E. dungeri Jordana, Schulz & Baquero, 2011, E. lhotseae Yosii, 1971 and E. huangi Chen & Ma, 1998 in colour pattern, but can be distinguished by the following characters: presence of S1 on head, 8–10 mac on Abd. I, 5 central mac on Abd. II & III respectively and 18–26 central mac on Abd. IV (Table 3).
description: Published as part of Yitong Ma & Shidi Shi, 2018, Three new species of Entomobrya (Collembola: Entomobryidae) from China, pp. 1-21 in European Journal of Taxonomy 419 on pages 13-18, DOI: 10.5852/ejt.2018.419, http://zenodo.org/record/1211301