taxonID	type	description	language	source
03BB5233FF80FFCDE5DA615426B0FD4A.taxon	materials_examined	Type specimen: Isotoma viridis Bourlet, 1839 (type locality: Europe (not specified ))	en	Park, Kyung-Hwa (2018): Redescription of Isotoma grana Lee, Kim & Kim, 1993 and description of a new species of Isotoma Bourlet, 1839 (Collembola: Isotomidae) from Korea. Zootaxa 4450 (4): 473-480, DOI: 10.11646/zootaxa.4450.4.5
03BB5233FF80FFCEE5DA61CE2462F844.taxon	materials_examined	Type material. Holotype: female on slide, KOREA: Jejudo Island: 508 m alt., Mulyeongari oreum N 33 ˚ 21 ′ 51 ″, E 126 ˚ 41 ′ 26 ″, Sumang-ri, Namwon-eup, Seogwipo-si, collected from fallen leaves of broad-leaf bamboo at the foot of the Parasite volcano, 20 – XI – 2009, leg. Kyung-Hwa Park. Paratypes: 3 females and 2 males on slides, the same data as holotype. 1 female and 1 male on slides, KOREA: Shinhapri N 36 ˚ 08 ′ 19 ″, E 126 ˚ 33 ′ 16 ″, Seocheon-gun, Chungcheongnam-do Province; collected from fallen leaves of oak trees, 19 – III – 2010, leg. Kyung-Hwa Park. Holotype is deposited in the National Institute of Biological Resources (NIBR), Incheon, Republic of Korea. Paratypes are deposited in NIBR and the Insect Collection, Department of Biology Education, Chonbuk National University, Jeonju, Korea (ICCU).	en	Park, Kyung-Hwa (2018): Redescription of Isotoma grana Lee, Kim & Kim, 1993 and description of a new species of Isotoma Bourlet, 1839 (Collembola: Isotomidae) from Korea. Zootaxa 4450 (4): 473-480, DOI: 10.11646/zootaxa.4450.4.5
03BB5233FF80FFCEE5DA61CE2462F844.taxon	description	Description. Body length up to 2.6 mm. Habitus as for the genus. Abd. V and VI separate. Colour of body greyish yellow in alcohol (Fig. 1); Antenna blue; Head with front transverse band connecting eye-spots and medial patch in a posterior position (Figs 1, 2). Th. II – Abd. II with distinct narrow longitudinal middorsal dark stripe; Lateral sides of Th. II – III with longitudinal stripes; All segments with narrow transverse band along the posterior edge, especially thicker on Abd. II, III and IV; Abd. III and IV, sometimes even Abd. II, with irregular transverse bands on mid dorsally. Furca pale. Head. Eye patch black, with 8 ocelli on each side (Fig. 4), G and H smaller. PAO small, roundish, shorter than 1 / 2 diameter of nearest ocellus. All antennal segments with many hair-like sensilla. Ant. I with 2 – 4 short ventral sensilla and 3 – 6 ventrolateral sensilla (Figs 5, 6). Ant. II with a curved, thickened lateroapical sensillum and several hair-like sensilla in ventral and dorsal sides (Figs 7 – 10). Ant. III organ normal, surrounded by several short blunt sensilla and thin hair-like sensilla (Fig. 11). Ant. IV without apical bulb, with simple or bifurcate subapical pin-chaeta (Fig. 12) and short rod-shaped subapical organite in a pit (Fig. 13). Labrum 4 / 554, with four apical folds, lateral folds much larger than median pair. Frontoclypeal area with 15 chaetae. Maxilla with 6 short lamellae covered with denticles, lamella 1 not passing tip of capitulum. Maxillary palp bifurcate with 4 sublobal chaetae (Fig. 14). Labium with 4 proximal and 7 – 11 basomedian chaetae, and guards; guard e 7 present. Body chaetotaxy. Ordinary chaetae varying lengths and thickness abundant. Macrochaetae long and moderately serrated. Macrochaetae on Abd. I – VI as 3,3,3,3,5,4 (Fig. 3; short simple chaetae omitted from the drawing). Median macrochaetae on Abd. V are more than 5 times of length of inner claw III. Mesochaetae on Th. II – Abd. I often hardly distinguished from macrochaetae in large specimens. Unpaired central chaeta on dorsal side of Abd. VI (m 0) short simple chaeta. Sensillary chaetotaxy of Th. II – Abd. IV as 66 / 5556, including 11 / 111 spinelike microsensilla. All posterior chaetae on anal valves smooth. Appendages. Unguis simple, with 1 pair of lateral teeth and 2 inner teeth. Unguiculus with one corner tooth (Figs 15, 16). Tita with spine-like serrated chaetae along inner edge, stronger on leg III; without clavate hairs, tenant hairs pointed; apical whorl has 8 chaetae. Ventral tube with 16 – 23 anterior and 25 – 39 laterodistal chaetae on each side, 32 – 40 posterior chaetae (Fig. 18). Retinaculum with 4 + 4 teeth and 18 – 28 chaetae (Fig. 20). Furcula long and tapering, reaching ventral tube. Manubrium with 3 – 6 + 3 – 6 strong, spine-like smooth chaetae in ventroapical position (Fig. 19). Manubrial thickening simple. Dorsal manubrial macrochaeta A shorter than B. Dens long and continuously narrowing, on posterior side with many crenulations. Posterior side of dens with few chaetae, two of which in the basal part are larger (Fig. 17). Mucro tridentate (Fig. 21).	en	Park, Kyung-Hwa (2018): Redescription of Isotoma grana Lee, Kim & Kim, 1993 and description of a new species of Isotoma Bourlet, 1839 (Collembola: Isotomidae) from Korea. Zootaxa 4450 (4): 473-480, DOI: 10.11646/zootaxa.4450.4.5
03BB5233FF80FFCEE5DA61CE2462F844.taxon	etymology	Etymology. The name of the new species refers to Korea, the country of the type locality.	en	Park, Kyung-Hwa (2018): Redescription of Isotoma grana Lee, Kim & Kim, 1993 and description of a new species of Isotoma Bourlet, 1839 (Collembola: Isotomidae) from Korea. Zootaxa 4450 (4): 473-480, DOI: 10.11646/zootaxa.4450.4.5
03BB5233FF80FFCEE5DA61CE2462F844.taxon	discussion	Remarks. The new species Isotoma koreana sp. nov. belongs to the species group as it has simple manubrial thickening, and two inner teeth on unguis and one corner tooth on unguiculus. This new species is allied to Isotoma pinnata by having middorsal longitudinal line on body and much smaller PAO than nearest ommatidia (Yosii, 1939, 1963; Lim & Park, 2013). However, it can be easily distinguished from the latter by the body pattern (strong central stripe in I. pinnata vs. fine central stripe in I. koreana sp. nov.) and the structure of apical spines on manubrium (serrated in I. pinnata vs. smooth in I. koreana sp. nov.). Morphologically it is near I. iranica Arbea & Kahrarian (2015), but it can be easily separated from it by its simple (in I. koreana sp. nov.) vs. bispinose (in I. iranica) manubrial thickening and the chaetotaxy. An indentification key to the Sino-Japanese species of Isotoma is provided here.	en	Park, Kyung-Hwa (2018): Redescription of Isotoma grana Lee, Kim & Kim, 1993 and description of a new species of Isotoma Bourlet, 1839 (Collembola: Isotomidae) from Korea. Zootaxa 4450 (4): 473-480, DOI: 10.11646/zootaxa.4450.4.5
03BB5233FF82FFC8E5DA66612601F83E.taxon	description	Specimens examined. holotype and 5 paratypes (3 paratypes remount): N. KOREA, Myohyangsan (Mt.), Pyunganbuk-do Province, Collection No. 782, July 1982. Type specimens are deposited in the National Institute of Biological Resources (NIBR), Incheon, Republic of Korea, and the Insect Collection, Department of Biology Education, Chonbuk National University, Jeonju, Korea (ICCU). Redescription. Body length up to 0.9 mm. Body shape as common for the genus. Abd. V and VI separate. Anal valves as spine-like papillae. General colour of body greyish yellow, mottled with blue pigment randomly dispersed in alcohol. Head with a dark spot in center. Head. Eye patch black, with 8 ocelli on each side, G and H smaller. PAO roundish, shorter than diameter of nearest ocellus. Ant I with a few ventral sensilla. Ant. II – III with many hair-like sensilla on dorsal side. Ant. III organ normal. Ant. IV with numerous hair-like sensilla, without apical bulb, with simple or bifurcate subapical pinchaeta and short rod-shaped subapical organite in a pit. Labrum 4 / 554, with four apical folds, lateral folds larger than median pair. Frontoclypeal area with 15 chaetae. Maxilla with short unmodified lamellae. Maxillary palp bifurcate with 4 sublobal setae. Labium with 4 proximal and 7 – 11 basomedian setae, and guards; guard e 7 present. Body chaetotaxy. Very similar to Isotoma koreana sp. nov., in the plurichaetotic body chaetae. Ordinary chaetae varying lengths and thickness abundant. Macrochaetae long and moderately serrated (Fig. 22). Macrochaetae on Abd. I – VI as 3,3,3,3,5,4. Median macrochaeta on Abd. V shorter than 5 times of length of inner claw III. Unpaired central chaeta on dorsal side of Abd. VI (m 0) serrated mesochaeta (Fig. 23). Mesochaetae on Th. II – Abd. I often hardly distinguished from macrochaetae in large specimens. Sensillary chaetotaxy of Th. II – Abd. IV as 66 / 5556, including 11 / 111 spine-like microsensilla. All posterior setae on anal valves smooth (Fig. 24). Appendages. Unguis simple, with 1 pair of lateral teeth and 2 inner teeth. Unguiculus with one corner tooth. Tita with spine-like serrated chaetae along inner edge, stronger on leg III; without clavate hairs, tenant hairs pointed; apical whorl has 8 setae. Ventral tube with 9 anterior setae. Retinaculum with 4 + 4 teeth and 10 setae. Furcula long and tapering, reaching ventral tube. Manubrium with 3 – 5 + 3 – 5 strong, spine-like smooth chaetae in ventroapical position (Fig. 25). Manubrial thickening simple. Dorsal manubrial macrochaeta A shorter than B. Dens long and continuously narrowing, on posterior side with many crenulations. Posterior side of dens with few chaetae, two of which in the basal part are larger. Mucro tridentate.	en	Park, Kyung-Hwa (2018): Redescription of Isotoma grana Lee, Kim & Kim, 1993 and description of a new species of Isotoma Bourlet, 1839 (Collembola: Isotomidae) from Korea. Zootaxa 4450 (4): 473-480, DOI: 10.11646/zootaxa.4450.4.5
03BB5233FF82FFC8E5DA66612601F83E.taxon	discussion	Remarks. This species is similar to Isotoma koreana sp. nov., in possessing fine middorsal longitudinal band on body and in the plurichaetotic body setae. But it is distinguished by the colour pattern on Abd. IV – VI, the size of PAO, and the unpaired central seta (m 0) on dorsal side of Abd. VI: Abd. IV – Abd. VI is dark in I. grana vs. Abd. VI not dark in I. koreana sp. nov.; PAO larger than 1 / 2 of nearest ocellus in I. grana vs. much smaller than 1 / 2 of nearest ocellus in I. koreana sp. nov., and unpaired central seta (m 0) on dorsal side of Abd. VI is serrated mesoseta in I. grana vs. short simple seta in I. koreana sp. nov.	en	Park, Kyung-Hwa (2018): Redescription of Isotoma grana Lee, Kim & Kim, 1993 and description of a new species of Isotoma Bourlet, 1839 (Collembola: Isotomidae) from Korea. Zootaxa 4450 (4): 473-480, DOI: 10.11646/zootaxa.4450.4.5
