Entomobrya potterae Jordana & Greenslade 2020, sp. nov.
Creators: name: Jordana, Rafael
name: Greenslade, Penelope
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Entomobryidae
Entomobrya
Entomobrya potterae

description: Entomobrya potterae sp. nov.
(Fig. 2N, 30 A–E)
Holotype. Female, NSW, Robertson, - 34.5833°S, 150.5833°E, 731m asl, on Protea, 10.5.95, C. Weller leg. [SAMA 22654].
Description. Size. Length 2300 µm.
Colour. Label notes pale colour of specimens.
Head. Eight eyes, G and H smaller than E and F. Antennal length 1187 μm, 2.8 times the length of the head. Ant IV with bilobed apical vesicle; relative length of Ant segments: 1/1.6/1.6/1.8. Labral papillae spinulate (Fig. 30A). Prelabral chaetae ciliated, labral chaetae 5,5,4 smooth. Lateral process of labial papilla E not reaching the papilla tip. Labial posterior row with MREL 1 L 2 all ciliated and R smaller than M.
Thorax and abdomen. Ratio of lengths Abd IV/III=3.5. Tibiotarsus without differentiated chaetae, with exception of the presence of the smooth terminal chaetae on legs 3, characteristic for the genus. Trochanteral organ with around 22 chaetae. Unguis with 4 teeth: paired two at 50% from base, first unpaired tooth at 75 % from the base, dorsal tooth basal. Unguiculus acuminated, narrow, external lamella of leg 3 smooth. Tenent hair clavate, longer than unguis. Manubrial plate with 4 chaetae and 2 pseudopores. Mucro bidentate, both teeth similar in size with mucronal basal spine. Mucronal length 15 micrometers; smooth apical portion of dens twice length mucro.
Macrochaetotaxy. Simplified Mc formula: 3,3,0,3,2/3,4/2,3/1,2,2(1)/3,3,4,2,2. Head chaetotaxy (Fig. 30B) An 1 (mes), Mac An 2, An 3a1, An 3 and A 5, (A 6 and A 7 as Mc). M 1 –M 4 present as Mc. In sutural row S 0, S 1, S 2, S 3, S 4i, S 4, S 5i and S 5. Ps 2 and Ps 5 present. Thoracic chaetotaxy with Th II chaetotaxy (Fig. 30C) T1 area with Mac m 1, m 2 and m 2i, T2 area with Mc a 5, m 4, m 4i and m 5. Abdominal chaetotaxy (Fig. 30D) of Abd II with a 2, a 3, m 3,m 3ep and m 3e, on Abd III a 1, a 2, a 3 and m 3 Mc present, Mc m 3a asymmetrically present or absent; Abd IV (Fig. 274) with Mc A 2, A 4 –A 6, A e4, B 1 –B 2, B 4 –B 6, B e2, B e3, C 2a and E 1. Sensillary formula as normal for Entomobrya. Bothriotricha on Abd IV in position T 2 and T 4 (0110).
Remarks. Only one adult specimen available, but the chaetotaxy, with every chaetae present, is unique among world Entomobrya. However, the Mc distribution on Abd II and III, means this new species is similar to some other Entomobrya. The Mc of T1 area on Th II (m 1, m 2 and m 2i) made it similar to E. dungeri Jordana, Schulz & Baquero, 2009, E. leeparkae Jordana, 2012 and E. turcestanica Stach, 1963, These three species differ by having 3, 3 and 6 Mc on T2 area on Th II instead of 4 (m 5 present) Table 8.
Etymology. Named for the completeness of its chaetotaxy.
description: Published as part of Jordana, Rafael & Greenslade, Penelope, 2020, Biogeographical and ecological insights from Australasian faunas: the megadiverse collembolan genus, Entomobrya (Entomobryidae), pp. 1-104 in Zootaxa 4770 (1) on pages 56-59, DOI: 10.11646/zootaxa.4770.1.1, http://zenodo.org/record/3797958