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 Jordana & Greenslade, 2020 Jordana & Greenslade 2020 [151,403,153,180] Entognatha Entomobryidae Entomobrya Animalia Collembola 50 51 Arthropoda species militum sp. nov.  ( Figs 2I, 5C, 26A–D)     Holotype. Female, ACT, Russell Offices, - 35.296°S, 149.150°E,  578masl, alienated, mown native grassland, adjacent to remnant  Themedawith eucalypts, pitfalls, Nov. 94, PG leg. [ SAMA 22668].   Paratype.Male, the same collection data as holotype.   Description.Size. Length 2.1 mm. Colour. Dark blue including antennae, legs and manubrium ( Fig. 5C). Head. Eight eyes, G and H smaller in size than E and F. Antennal length 952 μm, twice length of head. Ant IV with simple apical vesicle; relative length of Ant segments: 1/1.75/1.65/1.75. Labral papillae multispinate. Labral chaetotaxy with 5 prelabral ciliate chaetae, and 5,5,4 smooth. External process of labial papilla E not reaching to papilla tip. Only one chaetae L 2of posterior labial row can be see and it is ciliated. Ratio Ant/head, 2.55.   FIGURE 26.  Entomobrya militum  sp. nov.Line drawings A–D: A, head chaetotaxy; B, Th II chaetotaxy; C, Abd II–III chaetotaxy; D, Abd IV chaetotaxy. Bar=0.05 mm. Thorax and abdomen. Ratio lengths Abd IV/III=3. Tibiotarsus without differentiated chaetae, with exception of the presence of the smooth terminal chaetae on legs 3, characteristic for the genus. Unguis with 4 teeth, paired two at 50% of the base and long for an  Entomobrya, first unpaired tooth at 75 % from the base and small; lateral and dorsal teeth at intermediate level between base and internal paired teeth. Trochanteral organ with around 21 chaetae. Unguiculus acuminated, narrow, external lamella with three small teeth. Tenent hair clavate, longer than unguis. Manubrial plate with 4 chaetae and 2 pseudopores. Mucro bidentate, both teeth of similar size with mucronal basal spine. Mucro of 15 micrometers and distal, smooth part of dens twice length mucro. Macrochaetotaxy. Simplified Mc formula: 3,1,0,1,1a/1,3/0,2/1,0,1/0,0,2,2,2. Head chaetotaxy ( Fig. 25A) An 2, An 3a1, An 3and A 5Mac. Only M 1and M 4present as Mc. In sutural row present S 0, S 2, S 3, S 4, S 5iand S 5. Only Ps 5present. Thoracic chaetotaxy: Th II chaetotaxy ( Fig. 25B) with Mc m 1on T1 area, on T2 area with Mc a 5, m 4and m 5. Abdominal chaetotaxy ( Fig. 25C): Abd II m 3epand m 3e; on Abd III a 1and m 3Mc present; Abd IV ( Fig. 25D) with Mc A 4–A 6, B 4–B 6. Sensillary formula usual of  Entomobrya, the bothriotricha on Abd IV in position T 2and T 4(0110).   Remarks.Only one adult was available which could be confused with other dark coloured  Entomobrya. The chaetotaxy of Abd II and III is similar to  E. imbre  sp. nov.but m 5Mc is present on Th II in  E. militumand absent on  E. imbre  sp. nov.See also the remarks for  E. imbre  sp. nov. The collection site of this species is a small remnant of grassy woodland remaining in the centre of Canberra city that was surveyed for invertebrates as it was threatened with being cleared for a car park. On the basis of its vegetation and invertebrate fauna it was given protection. The site was adjacent to the offices of the Department of Defence hence the species name. The species appears to be a short-range endemic.   Etymology.Named for its location adjacent to Department of Defence offices. 2610568538 SAMA 578 -35.296 71 149.15 50 51 SAMA 22668 1 holotype