Entomobrya caputovisensis Jordana & Greenslade 2020
- Dataset
- Biogeographical and ecological insights from Australasian faunas: the megadiverse collembolan genus, Entomobrya (Entomobryidae)
- Rank
- SPECIES
- Published in
- Jordana, Rafael, Greenslade, Penelope (2020): Biogeographical and ecological insights from Australasian faunas: the megadiverse collembolan genus, Entomobrya (Entomobryidae). Zootaxa 4770 (1): 1-104, DOI: 10.11646/zootaxa.4770.1.1
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Entognatha
- order
- Collembola
- family
- Entomobryidae
- genus
- Entomobrya
- species
- Entomobrya caputovisensis
description
(Figs 1 F, 4 D, 11 A – E)
description
Description. Size. Length up to 1.4 mm excluding antennae (n = 3). Colour. Pattern as in Figs 1 F and 4 D, ground colour clear brownish with blue violet lateral band on all segments dorsally, near black at posterior of tergites Th III, Abd I – III with some whitish spots on anterior of Abd IV (Figs 1 F, 4 D). Head. Antennal length 626 μm, 2.2 times the length of the head, Ant IV with a bilobed apical vesicle. Relative length of Ant I / II / III / IV = 1.0 / 1.8 / 1.8 / 2.4. Four labral papillae spinulate or with some projections. External process of labial papilla E not reaching at the papilla tip. Labial chaetotaxy with MREL 1 L 2 ciliated chaetae, R 2 / 3 of M in length. Eight eyes, GH smaller than EF. Thorax and abdomen. Length ratio of Abd IV / III = 4 (n = 3). Unguis with 4 teeth on internal edge: first pair at 60 % distance from base of unguis, and 2 unpaired teeth, first one at 75 % distance from the base and the most distal one minute. Dorsal tooth approximately at half distance between the base of unguis and internal pair of teeth. Trochanteral organ with 13 chaetae (Holotype). Unguiculus spike-like, with a smooth external edge on leg III, serrate on legs 2 and 3. Furcal length 635 μm (n = 3). Manubrial plate with 4 chaetae and 2 psp. Mucro with 2 teeth, subapical tooth in size similar to the apical one. Mucronal spine present. Macrochaetotaxy. Simplified formula: 3,1,0,3,2 / 3,4 / 2,3 / 1,0,1 / 0,0,2,3,2. Head chaetotaxy with H 1 area with An 2, An 3 a 1 and An 3, as in Fig. 11 A, H 2 area with A 5, S’ 0 Mc absent on area H 3, H 4 area with S 1, S 3 and S 4 i Mc, H 5 with Ps 2 and Ps 5. Thorax with Area T 1 on Th II with 3 Mc (m 1, m 2, and m 2 i present) (Fig. 11 B). Area T 2 on Th II with 4 Mc present (a 5, m 4, m 4 p and m 4 i). Abdomen with Area A 1 on Abd II with 2 Mc as in Fig. 11 C and area A 2 on Abd II with 3 Mc. Abd III with 1 Mc on areas A 3 and A 5, without Mc on area A 4 as in Fig. 11 D. Abd IV with 14 Mc on central area among bothriotricha (A 4 – A 6, Ae 5, and B 4 – B 6) (Fig 94). Sensillary chaetotaxy S = 22 / 02273, microsensillary chaetotaxy Ms = 10 / 1010.
discussion
Remarks. Only four Entomobrya have the chaetotaxy 2,3 / 1,0,1 on the tergum of Abd II and III: Entomobrya leonensis Jordana & Baquero, 2005 (Spain), Entomobrya nivalis Linnaeus, 1758 (Europe and USA); Entomobrya unostrigata Stach, 1930 (cosmopolitan) and Entomobrya salina sp. nov. All of them differ in not having 3,4 Mc on Th II as occurs in E. caputovisensis sp. nov.. Furthermore, E. unostrigata is also separated from the new species by the presence of 20 to 30 Mc on Abd IV and 1 (2), 4 Mc in the areas T 1 and T 2 of the Th II. Entomobrya nivalis has a characteristic colour and chaetotaxy on Abd IV of 0,3,0,2,2, so different to the new species. Entomobrya leonensis is different by the presence of 4, 4 Mc on Th II and the chaetotaxy of the Abd IV as 0,3,2,2,2. E. salina sp. nov. has Abd IV polychaetose with 36 chaetae. These characters support the erection of this new species of Entomobrya.
etymology
Etymology. The species name is the Latinised version of the locality.
materials_examined
Holotype. Female NSW, South Ramshead, - 31.5 ° S, 148.233 ° E, 1980 m asl, moss, pitfall, Feb 2016, R. Slatyer leg. [SAMA 22641]. Paratypes. All the same locality, collector and date as holotype, two specimens on slide, 1 female, 1 male, [SAMA 22641 – 3]; 1 female on slide, [SAMA 22642 – 2]; nineteen specimens in ethyl alcohol, [SAMA 22642 – 3].