Fig. 4 in Ultrastructure of attachment specializations of hexapods (Arthropoda): evolutionary patterns inferred from a revised ordinal phylogeny
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Fig. 4. Details of hexapod tarsi and pretarsi. (A) Lepisma saccharina (Zygentoma), foreleg, pretarsus, lateral aspect. (B) Paraleptophlebia sp. (Ephemeroptera), midleg, pretarsus, ventral aspect. (C) Blatella germanica (Blattodea), midleg, tarsus, ventrolateral aspect. (D) Omocestus viridulus (Caelifera), foreleg, tarsus, ventral aspect. (E) Cercopis vulnerata (Auchenorrhyncha), midleg, pretarsus, ventrolateral aspect. (F) Chrysoperla carnea (Neuroptera), pretarsus, ventral aspect. (G, H) Schistocerca gregaria (Caelifera), foreleg, arolium sagittal section, triple stain after Cason. (I) Brachyptera risi (Plecoptera), midleg, arolium, sagittal section, triple stain after Cason. (J) Cercopis vulnerata (Auchenorrhyncha), midleg, sagittal section, triple stain after Cason. Black arrows indicate ventral directions. AR, arolium; CP, claw pad; EU, euplantulae; RD, chitinous threads; TAR, tarsal segments; TI, tibia; UN, claw, UN1, ephemeropteran hooklike claw, UN2, ephemeropteran padbearing claw
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