Biogeographical and ecological insights from Australasian faunas: the megadiverse collembolan genus, Entomobrya (Entomobryidae) Jordana, Rafael Greenslade, Penelope Zootaxa 2020 2020-05-06 4770 1 1 104 Schott, 1917 sensu Jordana & Greenslade Schott 1917 [151,1021,1556,1583] Entognatha Entomobryidae Entomobrya Animalia Collembola 44 45 Arthropoda species lamingtonensis  ( Figs 2E, 4M–N, 23A–J)    Holotype. Female, locality and collection details of type locality given above.  Other material examined.  Twofemales, one cleared, one dark, QLD,  Emu Vale,  20 kmE Warwick, - 28.2284°S, 152.2419°E,  515masl, in rotten log,  14.v.1974, PG leg. [ SAMA]; 2 males, one cleared the other dark, TAS, Claremont, near Hobart, Cadbury’s factory, - 42.793°S, 147.267°E,  12masl,  4.viii.1966, Iresonleg.; one specimen cleared on slide with 2 dark females, WA, Perth, - 31.986°S, 115.822°E,  7masl,  18.xi.1930, HW leg.; 4 specimens, 2 femalecleared and female and juvenile (dark blue) on same slide below 2 cover slips, 2 specimens, not cleared and both remounted, WA, Perth, Kings Park, - 31.96°S, 115.83°E,  23masl, wet land ,16.viii.71, M. Johnsonleg. [ SAMA].   Redescription.Size. Length up to 1.49 mmexcluding antennae ( Holotype) (n=11 at1339 μm). Colour. Blue dark with white patches in each chaetal insertion. Ground colour uniform pale yellow; head and every dorsal segment dark blue, with some bleached areas. Ant and legs light blue. Only the furca yellowish. ( Fig.4M, N).   FIGURE 23.  Entomobrya lamingtonensis  sp. nov.Line drawings A–J: A, Ant organ III (bar=0.005 mm); B, labral papillae (bar=0.010 mm); C, trochanteral organ (bar=0.020 mm);; D, unguis, leg 3 (bar=0.020 mm); E, manubrial plate (bar=0.020 mm); F, tip of dens and mucro (bar=0.020 mm); G, head chaetotaxy; H, Th II chaetotaxy; I, Abd II–III chaetotaxy; J, Abd IV chaetotaxy. Bar for G–J=0.050 mm.  Head. Eighteyes, G, H half the size of E and F. Antennallength 543 μm (n= 6) Holotypewithout antennae, 1.99 times the length of the head (n=6). AntIV with bilobed apical vesicle without pin chaeta; 1 small rod and a small sensillum near the tip of AntIV. Relativelength of Ant I/II/III/IV=1/1.8/1.8/2.8. Sensoryorgan of AntIII with rod-like sensilla in addition to 3 guard sensilla ( Fig. 23A); Ant Iwith 3 smooth chaetae at its base. Labralpapillae with 2–5 projections. ( Fig. 23B). Labralformula 4/554, 4 prelabral chaetae ciliated, labral chaetae smooth. Labialchaetae MREL 1L 2all ciliated, only with one M, and R a little shorter than others (80% of M). Five rows of post labial ciliated chaetae. Labial papilla E with external process not reaching the papilla tip. Thorax and abdomen. Length ratio of Abd IV/III=2.7 ( Holotype) (n= 11 at 3.09). Trochanteral organ with 9–11 chaetae ( Fig. 23C); tibiotarsus with smooth terminal chaetae on legs 3, characteristic for the genus and a longer, ciliated and pointed chaetae at the first third of tibiotarsus 3. Trochanteral organ near 12 spiny chaetae. Unguis length 70 μm. Unguis internal edge with 4 teeth, paired two at 53% and first unpaired tooth at 61% from base; lateral and dorsal teeth at level of paired ones ( Fig. 23D). Unguiculus lanceolate, 40 μm, with external serrate lamella. Tenent hair clavate, shorter than unguis. Length of manubrium and dentes 209 and 286 μm respectively, Manubrial plate with 2–3 chaetae and 1 pseudopore ( Fig. 23E). Mucro bidentate with teeth similar in size; mucronal basal spine reaching the tip of subapical tooth. Length of smooth apical dens 3 times the length of mucro ( Fig. 23F).  Macrochaetotaxy. Simplifiedmac formula: 3,1,0,1, 2/2,2/0,1(2)/0,0,1/0,0,0,1,1. Headchaetotaxy ( Fig. 23G) An 1mes, An 2, An 3aiand An 3 Mc. A 0, A 2, A 3, A 5 Mc. Only M 2and M 4present as Mc. Suturalrow with S 2, S 3S 4and S 5, S 0present as Mconly in two specimens; in remaining 8 absent, not seen in the holotypebecause the position of the head. Ps 2and Ps 5present as Mc, in one specimen present as Mc Ps 3. Thoracicchaetotaxy with T1area on Th II with m 1and m 2Mc; T2area on Th II with 2 Mc (a 5and m 4) ( Fig. 23H). Some asymmetries and variation present with mesochaetae on T 1 inthe two males studied. Abdominal chaetotaxy (Figs I–J) A1 area on Abd II without Mc and A2 area with 1 Mc (m 3), m 3epresent in three specimens. Abd III with 0 Mc on areas A3 and A4, and 1 Mc on area A5 (m 3). Abd IV macrochaetotaxy only 2+2 mac present in central areas, B 4and B 6, in one specimen a mesochaeta in A 4position, and in two specimens present A 6as Mc.   Remarks.The holotypeis fixed in an air bubble but retains its natural dark blue colour, which makes it difficult to determine the chaetotaxy. However, two independent taxonomists with a DIC microscope have certified such chaetal arrangements as can be detected. The species is unusual for having few chaetae on Abd IV. The material studied and listed matches the holotypein colour pattern, including the bleached areas, and in chaetotaxy. This species appears to be uncommon but distributed widely. It can be easily confused with other dark blue species that are abundant in Australia. The distribution of the bleached areas on the body allowed identification ( Fig 4M). Its chaetotaxy on Abd II and III (0,1/0,0,1 Mc) is similar to  E. termitophilabut it differs on Th II (0, 2 Mc) and 8 to 16 Mc on Abd IV in  E. termitophilaand 2, 2 Mc on Th II and only 4 Mc on Abd IV. Three slides identified as  E. lamingtonensisoriginally determined by H. Womersley are here identified as  Drepanura. Two are from WA, Nangara, 31.xi.1930and one slide from WA, Mundaring, 25.ii.31, both HW leg. 2610568329 [469,945,1699,1726] QLD Two 44 45 1 2610568378 1930-11-18 1974-05-14 1930-11-18 SAMA Ireson & Perth & Kings Park & M. Johnson 515 -31.96 Emu 728 115.83 44 45 10 2 2 Valais