Himalanura draconis 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
- Insecta
- order
- Hymenoptera
- family
- Formicidae
- genus
- Himalanura
- species
- Himalanura draconis
description
(Figs 3 P, 6 F – G 48 A – F)
description
Description. Size. Length up to 1.524 mm excluding antennae (n = 3). Colour. Body colour pattern as in Fig 6 F, ground colour clear brownish with lateral band blue violet lateral in Th II – Abd I. Blue violet almost the whole Abd II – IV, and the tip of Abd V and VI. Antennae blue / violet (Fig. 3 P). Clothing. Body clothed with expanded chaetae like narrow scales (Fig, 6 G, 47 C) characteristic of the genus Himalanura. Head. Antennal length 778 μm (Holotype), 2.5 times the length of the head, Ant IV with a bilobed apical vesicle. The relative length of Ant I / II / III / IV = 1.0 / 3.5 / 2.5 / 2.9. 8 eyes, GH smaller in size than EF. Four labral papillae smooth (Fig. 47 A). Four prelabral chaetae ciliated, 5,5,4 labral smooth chaetae. Lateral process of labial papilla E reaching the papilla tip. Posterior labial row with MREL 1 L 2, but only are present two ciliated chaetae, but the alveoli of chaetae R is small than of that M. Thorax and abdomen. Trochanteral organ with 8 spiny chaetae. Unguis with 4 teeth on internal edge: first pair at 50 % 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 near the internal pair of teeth. Unguiculus spike-like, with a serrated external edge on leg III. Furca length 583 μm (Holotype). Manubrial plate with 4 chaetae and two pseudopores. Mucro with 2 teeth, subapical tooth in size similar to the apical one. Mucronal spine present. Chaetotaxy. Simplified formula: 3,1,0,1,2 / 3,3 / 0,2 / 0,0,1 / 0,0,2,1,2. Head chaetotaxy with H 1 area with An 2, An 3 a 1 and An 3, as in Fig. 47 B, H 2 area with A 5, S’ 0 Mc absent, H 4 area with S 1, S 3, S 4, S 5 i and S 5 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. 47 D). Area T 2 on Th II with 3 Mc present (a 5, m 4, and m 4 i). Abdomen with Area A 1 on Abd II without Mc as in Fig. 47 E and area A 2 on Abd II with 2 Mc. Abd III with 1 Mc on area A 5, without Mc on area A 3 and A 4. Abd IV with 10 Mc on central area among bothriotricha (A 4, A 6, and B 4 – B 6). (Fig 47 F). Measurements. Length ratio of Abd IV / III = 3.38 (n = 3).
discussion
Remarks. The genus, Himalanura, is reported for the first time from Australia. Its chaetotaxy is unique for an Entomobrya and also for a Himalanura. In 2014 Baquero, Mandal & Jordana described a new species from India and gave a complete chaetotaxy for the genus. The genus until now was only known from Taimyr Peninsula (Russia), Yukutia and Magadan provinces (Russia) (Siberia) and high altitude sites in the Himalayas, India, Tadjikistan, Afghanistan and China (Jordana, 2012). Baquero et al. (2014) described it as having an artic-alpine disjunction. The Australian record extends its distribution around 7,000 km south east and to a low altitude habitat of arid grassland. This new species has the same chaetotaxy on Th II as H. maculae Yosii, 1971 and H. nuptsae Yosii, 1971, but the chaetotaxy of Abd II and III separate the three species: 0,2 / 0,0,1 Mc for the sp. nov., 1,2,011 Mc for H. maculae and 2,7 / 0,2,2 Mc for H. nuptsae.
etymology
Etymology. The species name is refers to the legend of the name’s locality (Saint George) near the sampling site.
materials_examined
Holotype. Male, on slide, QLD, St George, - 28.0374 ° N, 148.5807 ° E, 200 m asl, sweeping grasses, 12. v. 1974, P. G leg. [SAMA 22670 - 01]. Paratypes. Two males subadult on the same slide, same collection data as holotype.