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 kitchingi sp. nov. ( Figs 2D , 22 A–F) Holotype . Female , QLD , Lamington N.P , O’Reillys Resort , - 28.2342°S , 153.1363°E , 1000m asl , canopy fogging, Jan. 1990 , R . Kitching leg. [ SAMA 22651 ]. Description. Size. Length 2.179 mm . Colour cleared, presumably dark blue. Head. Eight eyes, G and H smaller in size than E and F. Antennal length 1397 μm, 2.6 times the length of the head. Ant IV with bilobed apical vesicle; relative length of Ant segments: 1/1.94/1.66/1.9. Sensory organ of Ant III as figure 22B. Labium with posterior row with MREL 1 L 2 ciliated chaetae, R 172 than M. Four prelabral chaeta smooth and small ( 0.017 mm ), labral chaetae smooth 5, 5, and 4. Labral papillae smooth. FIGURE 22. Entomobrya kitchingi sp. nov. Line drawings A–F: A, head chaetotaxy; B, Ant organ III (bar=0.008 mm); C, Th II chaetotaxy; D, Abd II–III chaetotaxy; E, Abd IV chaetotaxy; F, unguis, a leg 3, b unguiculus leg 1&2 (bar=0.040 mm). Bar for A, C–E=0.05 mm. Thorax and abdomen. Ratio lengths of Abd IV/III=3.3. Tibiotarsus without differentiated chaetae, with exception of the smooth terminal chaetae on legs 3, characteristic for the genus. Trochanteral organ with near 30 chaetae. Unguis ( Fig. 22F ) with 4 teeth, paired teeth at 33% of the base, first unpaired tooth at 75 % from the base; lateral and dorsal teeth basal at a level below the internal paired teeth. Unguiculus acuminated, narrow, external lamella of leg 3 smooth, serrate on legs 1 and 2, with 10 minute teeth. Tenent hair clavate, same size or shorter than unguis. Manubrial plate with 4 chaetae and 2 pseudopores. Mucro bidentate, both teeth of similar size with mucronal basal spine, Mucro of 20 μm and smooth distal part of dens twice the length mucro. Macrochaetotaxy. Simplified Mc formula: 3,1,0,1(2),1a/0,2/1,2/1,0,1/0,2,0,2,2. Head chaetotaxy ( Fig. 22A ) An 2 , An 3a1 , An 3 and A 5 Mc. Only M 2 and M 4 present as Mc. Sutural row present S 0 , S 2 , S 3 , S 4i (present or absent), S 4 , S 5i and S 5 . Only Ps 5 present. Thoracic chaetotaxy of Th II ( Fig. 22C ) only with Mc a 5 and m 4 . Abdominal chaetotaxy ( Fig. 22D ): of Abd II with a 3 , m 3 and m 3e ; on Abd III a 1 and m 3 Mc present; Abd IV ( Fig. 22E ) with Mc A 3 , A 5 –A 6 , E 1 , B 5 –B 6 . Sensillary formula as normal for Entomobrya . The bothriotricha on Abd IV in position T 2 and T 4 (0110). Remarks. Only one adult specimen was available of unknown colour but the chaetotaxy is unique for an Entomobrya . The chaetotaxy of Abd II and III (1,2/1,0,1) and 12 Mc on central part of Abd IV are similar to some European species: E. boneti Jordana & Baquero, 2006 , E. pusilla Latzel, 1918 , E. schulzi Jordana & Baquero, 2011 , E. albocincta Templeton, 1835 and E. marginata ( Tullberg, 1871 ) . The chaetotaxy of Th II (0, 2 Mc) of E, kitchingi sp. nov. differs at (2, 3 Mc) for the three first cited species and from the 2, 4 Mc of E, marginata . Etymology. Named for Professor Roger Kitching who made, with his team, numerous collections of Collembola from Lamington National Park.