Morulina

• Main Authors: Palacios-Vargas, José G., Gao, Yan
• Format: Text
• Language: unknown
• Published: Zenodo 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Entognatha; Collembola; Neanuridae; Morulina; Canada; Coleman; Wrangel Island; Sakhalin; Alaska; Siberia
• Online Access: https://dx.doi.org/10.5281/zenodo.5611457; https://zenodo.org/record/5611457

Key to species of the genus Morulina 1. Tubercles De and Dl separated on the Abd. IV. De displaced to hind margin of the segment......................... 2 - Tubercles De and Dl fused into a single mass on the Abd. IV................................................. 13 2. Interocular area with 3 tubercles: 2 antennal and 1 frontal..................................................... 3 - Interocular area with 2 tubercles: composed of the fusion of each antennal with half of frontal....................... 12 3. Pigmented blue-black, not homogeneous, or pigment absent................................................... 4 - Body colorations blue-black, homogeneous................................................................ 7 4.- Yellow areas on the thoracic segments I and II, and abdominal I, II, III and IV. Mandible with three teeth...................................................................................... M. gilvipunctata (Uchida, 1938) (Japan) - Dorsal ground whitish, with traces of pigment on dorsal tubercles. Mandible 5 or 7 teeth............................. 5 5. Prothorax with 8 tubercles.................................................... M. delicata Bernard, 2006 (USA) - Prothorax with 6 tubercles as most Morulina spp............................................................. 6 6. Mandible with 5 teeth.................................................. M. pallidissima Cassagnau, 1997 (Japan) - Mandible with 7 teeth.............................................. M. alia Christiansen & Bellinger, 1980 (USA) 7. Pectiniform mandible with 12–15 teeth, maxilla elongate....................................................................................... M. mackenziana Hammer, 1953 (Canada, Wrangel Island, Northern parts of Nearctic) - Mandible with 5 ̶ 7 teeth, apical two more or less curved...................................................... 8 8. Maxilla with elongated capitulum, styliform, ocular tubercles with 2–3 setae...................................... 9 - Maxilla with short thick capitulum with 3 teeth, ocular tubercle with 5–6 setae.................................... 11 9. Ventral tube with 8–10 pairs of setae; mandible with 7 teeth................................ nucifera sp. nov. (China) - Ventral tube with fewer than 8 setae; mandible with 5–6 teeth................................................. 10 10. Strong hypertrichosis, frontal tubercle with 5 setae. Macrosetae with globular or cylindrical apex. Di of Th. I with 4–7 setae........................................................................... M. orientis Tanaka, 1984 (Japan) - Weak hypertrichosis, frontal tubercle with 2 setae. Macrosetae acuminate or tapering apex. Di of Th. I with 2 setae............................................................................. M. himalayana Cassagnau, 1977 (Nepal) 11. Strong hypertrichosis, Di of Th. I with 9–12 setae. Antennal tubercles with 9–12 setae. Mandible with 5 teeth.................................................................................. M. alata Yosii 1954 (Russia and Japan) - Weak hypertrichosis, Di of Th. I with 3–7 setae. Antennal tubercles with 5–7 setae. Mandible with 6 teeth whose of apex out- ward–hooking................................... M. thulensis Hammer, 1953 (Nearctic & North–Eastern Palearctic) 12. Cephalic tubercles Di+De with 8–10 setae.............................. M. triverrucosa Tanaka 1978 (Japan, Korea) - Cephalic tubercles Di+De with 6–7 setae; hypertrichosis usually less intense than in previous species ( M. triverrucosa )................................................................ M. pawlowskii Deharveng & Weiner, 1984 (Korea) 13. Ocular tubercle with more than 3 setae................................................................... 14 - Ocular tubercle with 3 setae............................................................................ 16 14. Ocular tubercle with 4 setae................................................... M. callowayia Wray, 1953 (USA) - Ocular tubercle with more than 4 setae................................................................... 15 15. Ocular tubercle with 5–6 setae. Mouthparts not elongated: maxilla with capitulum thick and short, apex with 3 teeth; mandible with 6 teeth.............................................. M. gigantea (Tullberg, 1877) (Siberia, Alaska, Sakhalin) - Ocular tubercle with 6–7 setae. Mouthparts elongated: Maxilla with 4 reduced lamellae, mandible with 5 teeth............................................................. M. stevehopkini Palacios ̶Va rg a s & Si m ón ̶Benito, 2007 (USA) 16. Maxilla with a stout capitulum composed of 6 strong teeth and 2 slender lamellae.................................................................................................. M. crassa Chistiansen & Bellinger, 1980 (USA) - Maxilla styliform, with 2–3 lamellae, one of them with (less than 6) or without teeth............................... 17 17. Mandible with 11–13 teeth.......................................... M. theeli Babenko & Fjellberg, 2001 (Siberia) - Mandible with fewer than 8 teeth........................................................................ 18 18. Mandible with 7–8 teeth.............................................. M. verrucosa (Börner, 1903) (Carpathians) - Mandible with 5 or 6 teeth............................................................................ 19 19. Mandible with 5 curved teeth. Ventral tube with 5–6 setae........................... M. australis Tanaka 1984 (Japan) - Mandible with 6 teeth. Ventral tube with 8–12 setae....................... M. multatuberculata (Coleman, 1941) (USA) : Published as part of Palacios-Vargas, José G. & Gao, Yan, 2013, Study on the genus Morulina (Collembola: Neanuridae) with description of a new species from Northwest China, pp. 179-186 in Zootaxa 3702 (2) on pages 180-181, DOI: 10.11646/zootaxa.3702.2.6, http://zenodo.org/record/218315