Biogeographical and ecological insights from Australasian faunas: the megadiverse collembolan genus, Entomobrya (Entomobryidae) Author Jordana, Rafael Author Greenslade, Penelope text Zootaxa 2020 2020-05-06 4770 1 1 104 journal article 22349 10.11646/zootaxa.4770.1.1 6b7e3a53-0658-4628-bfb6-9f39f0b34c99 1175-5326 3797958 39F2F040-E300-4065-9E8E-83A9D6286D1F Entomobrya multifasciata ( Tullberg, 1871 ) Brook, 1884 ( Figs 2J , 5D , 27 A–D) Degeeria multifasciata Tullberg, 1871 Entomobrya multifasciata , Brook 1884 Entomobrya nicoleti var. multifasciata , Börner 1901 Entomobrya aurantiaca Stach, 1922 Entomobrya multifasciata f. nigra Uchida, 1954 Type locality. Sweden Material examined . SAMA : male, ACT, Constitution Ave , Russell , Canberra , - 35.296°S , 149.150°E , 578m asl , pitfall site 5, 1–5.iv.1991 , J. Dorrow leg. ; NSW , Armidale , Chiswick farm, nr Armidale , - 32°S , 147°E , 980m asl , pasture, grassland, September 1973 , KK leg.; 6 specimen male; NSW , Legume , - 28.40472°S , 152.30758°S , 583m asl open area in woodland, 20.ix.1974 , JG leg.; 3 specimens female, NSW , Armidale , - 32°S , 147°E , 980m asl ; female Juvenile , NSW , Arawana Headland , - 30.065°S , 153.200°E , 5m asl in sea weed on beach, 11.i.1974 ; female NSW Richmond , - 33.600°S , 150.750°E , 19 m asl , grass in garden, 31.xii.1975 ; 4 specimens , NSW , Armidale , - 32°S , 147°E , 980m asl ; female , QLD ,, nr Leslie Dam , - 28.21°S , 151.97°E , sweeping, 13.05.1974 , PG leg.; female QLD , Brisbane , - 27.469°S , 153.025°E , 22m asl , in irrigated pasture 8.ix.1933 ; female SA , Waite Institute , Urrbrae , - 34.967°S , 138.636°E , 118 m asl , sub clover, July 1930 , 24,viii.31, HW leg.; female SA , Cambrai , - 34.663°S , 139.321°E , 305m asl ,, bracken, March , 1972, PG leg.; female SA , Andamooka , - 30.453°S , 137.164°E , 76m asl , 2.iv.72 ; SA , Belair , 1.2 ii.1976 , PG leg.; Belair , - 35.007°S , 138.633°E , 300m asl ; 2 female and male, juvenile, SA , Glen Osmond , - 34.960°S , 138.650°E , 300m asl , 1.ix.1974 ; female , SA , Mitcham , - 34.987°S , 138.625°E , 62m asl , garden soil, 21.xi.85 , R . V . Southcott leg.; 1male , 1female , SA , Hindmarsh Island , Lane’s property, - 35.533°S , 138.86°E , 25m asl , pitfalls , 4.x.2013 , PG GH leg.; male SA , Hindmarsh Island , Anne’s property, young, 4.x.2013 , PG GH leg.; - 35.516°S , 138.866°E , 25m asl , 5.x.2013 , PG GH leg.; Juvenile . SA , Glen Osmond , stray in funnels in laboratory, - 34.960°S , 138.650°E , 300m asl , and - 35.533°S , 138.86°E , 25m asl ; male SA , Hindmarsh Island , Hill’s property, - 35.516°S , 138.866°E , 25m asl ; female TAS, New Town , Hobart , - 42.859°S , 147.305°E , 49m asl , 3.ix.32; juvenile, same location in Tasmania , 3.ix.32; juvenile, 1 male , 1female , WA, Mundijong , - 32.284°S , 115.973°E , 42m asl , 25.vi.98, PG leg.; 3 specimens - 34.9600°S , 138.6502°E , 300m asl PG leg. Redescription based on Australian material. Size. Length up to 0.9 mm excluding antennae (n=7). Colour. Pattern as in Fig 2J , some colour variations shown. Head. Antennal length 847–1020 μm, 2–3 times the length of the head; Ant IV with a bilobed apical vesicle. Relative lengths of Ant I/II/III/IV=1.0/2.1/1.9/2.6. Four spinulate labral papillae or with some projections, four ciliated prelabral chaetae and 5,5,4 labral smooth chaetae. Lateral process of papilla E reaching at the papilla tip. Labial posterior row with MREL 1 L 2 , R smaller than M; eight eyes, G and H similar in size to E and F. Thorax and abdomen. Ratio of lengths of Abd IV/III=4 (n= 7). Trochanteral organ near of 22 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% 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. Unguiculus spike–like, with a smooth or external edge on leg III. Furcal length 636 μm (n=7). 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: 3,1,0,3,2/2,3/2,2/1,2,1/0,2,3,2,2. Head chaetotaxy with H1 area with An 2 , An 3a1 and An 3 , and as in Fig. 27A, H 2 with A 5 , S’ 0 Mc no present; H4 with S 1 , S 3 and S 4i Mc, H5 with Ps2 and Ps5. Thoracic chaetotaxy Area T1 on Th II with 2 Mc (m 1 and m 2i or m 2 present) ( Fig. 27B ). Area T2 on Th II with 3 Mc present (a 5 , m 4 and m4i). Abdominal chaetotaxy Area A1 on Abd II with 2 Mc as in Fig. 85 and area A2 on Abd II with 2 Mc. Abd III with 1 Mc on areas A3 and A5, 2 Mc on area A4 as in Fig. 27C . Abd IV with 18 Mc (A 3 –A 6 , B 4 –B 6 , E 1 and C 2a ) sometimes a variation on Area A7 on Abd IV 1–3 Mc. ( Fig 27D ). Sensillary chaetotaxy S =21/02293 and Ms =10/101, similar position to E. nigrocincta . Remarks. The characteristic colour may fade and only remain on the anterior part of Th II and on a distal part of the body. The only difference from the European E. multifasciata (cf. Jordana, 2012 ) is the presence of 3 Mc on H 4 in the head, but some Australian specimens are asymmetric in this character. FIGURE 27. Entomobrya multifasciata Line drawings A–D: A, head chaetotaxy; B, Th II chaetotaxy; C, Abd II–III chaetotaxy; D, Abd IV chaetotaxy. Bar=0.05 mm. Open circles mean unstable Mc. This introduced species is the most widespread and abundant species of the genus in Australia . It has been misidentified as E. tenuicauda previously and with females of E. nigrocincta because of a similar colour. It is rarely found in native vegetation and nearly always in improved exotic grasses in pasture and on other open disturbed land.