Entomobrya dingi, Ma & Shi, 2018

Yitong Ma & Shidi Shi, 2018, Three new species of Entomobrya (Collembola: Entomobryidae) from China, European Journal of Taxonomy 419, pp. 1-21 : 13-18

publication ID	https://doi.org/ 10.5852/ejt.2018.419
DOI	https://doi.org/10.5281/zenodo.5672093
persistent identifier	https://treatment.plazi.org/id/343F87A7-FFB5-5E2B-EF59-FB7CFADE5E81
treatment provided by	Plazi
scientific name	Entomobrya dingi
status	sp. nov.

Treatment

Entomobrya dingi View in CoL sp. nov.

urn:lsid:zoobank.org:act:8B3E500B-6261-4944-9A11-D22FE05D1B82

Figs 11 View Fig. 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 ). GoogleMaps

Paratypes

CHINA: 9 ♀♀ on slides, same collecting data as for holotype. GoogleMaps

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 View Fig. 11 ).

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 View Fig. 12 ). Lateral process (l.p.) of labial palp curved with tip not reaching apex of same papilla ( Fig. 12B View Fig. 12 ). Subapical chaeta of maxillary outer lobe subequal to apical one, 3 smooth hairs on sublobal plate ( Fig. 12C View Fig. 12 ). Labial chaetae MREL1L2, all ciliate; chaeta R 0.56–0.68 as long as chaeta M ( Fig. 12D View Fig. 12 ). Labral chaetae 4/5, 5, 4, prelabral chaetae ciliate and other smooth; labral papillae 4 and each with 3–4 minute denticles ( Fig. 12E View Fig. 12 ). Clypeus with 14–16 ciliate chaetae ( Fig. 12F View Fig. 12 ). Dorsal cephalic chaetotaxy with 4 antennal (An), 4 median (M) and 8 sutural (S) mac, 8–9 mac in Gr. II ( Fig. 12G View Fig. 12 ); interocular chaetae as p, q, r, s, t ( Fig. 12H View Fig. 12 ).

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 View Fig. 13 ). Coxal macrochaetal formula as 2 (2 pseudopores)/ 4+1, 2–3 (2 pseudopores) / 4+2 (2 pseudopores) ( Fig. 13B– D View Fig. 13 ). Trochanteral organ with 13–22 chaetae ( Fig. 13E View Fig. 13 ). 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 View Fig. 13 ).

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 View Fig.14 ). Abd. IV with 18̅26 central and 7̅12 lateral mac ( Fig. 14B View Fig.14 ). Abd. V with 3 sens ( Fig. 14C–D View Fig.14 ). Ventral tube with 14–16 ciliate chaetae on anterior face ( Fig. 15A View Fig. 15 ), 2 smooth and 9̅14(6) ciliate or much ciliate chaetae on posterior face ( Fig. 15B View Fig. 15 ), 3̅4 smooth and 4̅7 ciliate chaetae on each lateral flap ( Fig. 15C View Fig. 15 ). Manubrial plaque with 4̅5 ciliate chaetae and 2 pseudopores on each side ( Fig. 15D View Fig. 15 ). 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 View Fig. 15 ).

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).