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43 results for “plesiomorphic”
FIGURE 19. A–E Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 19. A–E Nanohystrix hammerae n. sp. tritonymph (appendages and many setae incomplete). A, dorsal aspect; B, close-up of right humeral region of hysterosoma; C. lateral aspect; D, close-up of proterosomal coxisternum region (cf. C), some epimeral setae represented only by alveoli; E, ventral view of hysterosoma. Abbreviations: cd1–5 (cuticular disks), cpc (podocephalic canal), ia, im, ip, ih, ips (lyrifissures), sp2 (dorsal spine of epimere 2), Pf (palp femur), pK (prodorsal condyle), Tr1, Tr2 (trochanters of legs 1, 2); other labels indicate setae (see text). Scale bars: 100 Μm (A, C, E); 20 Μm (B, D).
FIGURE 12. A–F Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 12. A–F Nanohystrix hammerae n. sp. adults, transmitted light compound microscope images except B (SEM). A, distal quarter of extended ovipositor with lobes spread, lateral aspect, anterior to right; B, similar, but distal lobes only slightly spread; C, spermatopositor, ventral aspect; D, lateral aspect of genu I solenidion σ1 and coupled seta d; E, dorsolateral aspect of tibia I seta d (coupled solenidion removed); F, distal end of tarsus IV of male, showing potential for bending. All labels relate to setae (see text). Except B, all composites of 5–20 layers. Scale bars: 25 Μm (A–C, F); 10 Μm (D, E).
FIGURE 9. A–B Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 9. A–B Nanohystrix hammerae n. sp., adult female. A, several of the large setae that are abbreviated in B and in Fig. 2B; B, ventral aspect, legs and some setae only partially shown. Abbreviations: ips (lyrifissure); other labels indicate setae (see text). Scale bar: 100 Μm.
FIGURE 11. A–G Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 11. A–G Nanohystrix hammerae n. sp. adults, transmitted light compound microscope images. A, mid-region of epimeres I and II, ventral aspect, showing granular soft cuticle; B, right supracoxal seta eI, anterolateral aspect; C, dorsal aspect (anterior to top) of left supracoxal region of epimeres I and II, showing spinous process at anterior border of epimere II (inserts show variation in process); D soft lateral cuticle above epimere I, showing cerotegument granules, some elongated, vermiform; E, same, enlargement of lower right corner, showing underlying fine striation and porosity; F, portion of incursion of pale cuticle lateral to adanal region of notogaster (cf. lower right side of Fig. 9B), ventral aspect, anterior to top; G, close-up of cupule ips; H, shallow internal view of dissected (partial) anogenital region, showing preanal apodeme and genital plate muscles; I, same, but more internal focal plane, showing transverse compressor muscles. Abbreviations: ep1, ep2 (epimeral plates), g.mu (genital plate muscles), ips (lyrifissure), pa (base of preanal seta), pr.a (preanal apodeme), pra.m (transverse preanal muscles); other labels indicate setae (see text). All composites of 5–20 layers. Scale bars: 50 Μm (H, I); 20 Μm (A, D); 10 Μm (C); 5 Μm (B, E–G).
FIGURE 8. A–E Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 8. A–E Nanohystrix hammerae n. sp., transmitted light compound microscope images of adults (A, C uncleared). A, Anterior portion of notogaster dissected from body (midline indicated by thin black line; prodorsal retractor muscles torn anteriorly) under strong DIC illumination to show muscles; B, left cuticular disk cd4 and pale extension from middle scissure (posterodorsal view, anterior to right); C, region of cuticular disk cd3 showing tendon insertion files and proximal parts of thin tendons (lateral aspect, anterior to right); D, portion of seta f1, transmitted bright-field illumination; E, same, but with polarized light. A–C composites of 5-15 layers. Abbreviations: cd1, cd3 (cuticular disks), e1.mu, f1.mu (muscles acting on respective setae), pr.mu (dorsal components of prodorsal retractor muscles), ti (tendon insertions), t.sul (transverse sulcus, with concave wall appearing brown in transmitted light; other labels indicate setae (see text). Scale bars 20 Μm (A); 10 Μm (B–E).
FIGURE 2. A–E Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 2. A–E Nanohystrix hammerae n. sp., adult female, dorsal aspect. A, habitus of fully distended specimen (legs and some setae incompletely drawn for overall clarity); B, enlargement of same (larger setae abbreviated, see Fig. 9A); C, left side of anterior notogastral scissure (arrow at midline, setae indicated only by alveolus on basal tubercles); D, same view of middle scissure, showing extensive pale cuticle and disk cd4; E, entire posterior scissure and cuticular disks cd5 (posterodorsal aspect). Abbreviations: bng (border of notogaster), cd1–5 (cuticular disks), ia, im, ip (lyrifissures), nc (nuchal constriction), ti (tendon insertions); other labels indicate setae (see text). Scale bars: 100 Μm (C–E to same scale).
FIGURE 17. A–C Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 17. A–C Nanohystrix hammerae n. sp., adult legs, abaxial aspect. A, left leg III, tarsus partially shown; B, left tarsus III; C, left leg IV (slightly twisted at base). Labels all indicate setiform organs (see text). Scale bars: 100 Μm.
FIGURE 18. A–K Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 18. A–K Nanohystrix hammerae n. sp. juveniles: larva (A –I), protonymph (J, K). A, venter, legs partially shown; B, right leg I, abaxial aspect, tarsus simplified; C, right tarsus I, abaxial aspect, slightly rotated dorsally; D, right genu and tibia I, dorsal aspect; E, right leg II, abaxial aspect, tarsus simplified; F, right genu II, dorsal aspect; G, right tarsus II, abaxial aspect; H, left leg III, abaxial aspect, tarsus simplified; I, left tarsus III, abaxial aspect; J, right genu I, dorsal aspect (cf. D); K, right genu II, dorsal aspect (cf. F). Tibial seta d broken in H, I. Abbreviations: cd5 (cuticular disk), ih (lyrifissure), t.e. (vestige of leg IV); other labels indicate setiform organs (see text). Scale bars: 50 Μm (A, B, E, H to same scale); 25 Μm (C, D, F, G, I–K to same scale, except famulus enlargements in C, G).
FIGURE 21. A–F Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 21. A–F Nanohystrix hammerae n. sp., food boluses dissected from ventriculus or colon of various adults, compound light microscope images. A, mixture of dark fungal hyphae and septate spores, light hyphae and simple spores; B, large septate spores and mixed hyphae; C, dense mass of dark hyphae, some septate spores; D, dark hyphae with setae from cuticle of endeostigmatid mite, probably Alicorhagiidae or Alycidae (enlarged in insert); E, hyphal fragments, collembolan scales and probable collembolan seta; F, leg of prostigmatid mite (Cheyletoidea or Raphignathoidea), with insert showing apotele of different leg. All composites of 5–10 layers. Scale bars: all 20 Μm.
FIGURE 16. A–G Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 16. A–G Nanohystrix hammerae n. sp., adult legs, abaxial aspect. A, right leg I, tarsus partially shown; B, right tarsus I; C, enlargement of tarsus I famulus (e); D, tibia I solenidion φ1 with minute coupled seta d; E, right leg II, tarsus partially shown; F, right tarsus; G, two variations of tarsus II famulus (e). Labels all indicate setiform organs (see text). Scale bars: 50 Μm (A, B, D–F); 5 Μm (C, G).
FIGURE 6. A–G Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 6. A–G Nanohystrix hammerae n. sp., scanning electron micrographs of adults (most with small surface debris artifacts). A, sejugal region of partly distended specimen, dorsolateral aspect (anterior to left)—arrow indicates minute surface granules (probably cerotegument); B, anterior third, ventral aspect, showing rostrum, gnathosoma and epimeres I–III; C, same, ventrolateral aspect, with chelicerae spread; D, bothridium and base of bothridial seta; E, portion of sejugal region of contracted specimen, anterodorsal view (cf. left side of Fig. 4B), showing reticulation (arrow) on notogaster; F, enlargement of C, right center; G, prodorsum, lateral aspect (slightly anterodorsal). Abbreviations: ca1, ca2 (prodorsal carinae), cpc (podocephalic canal), Ch (chelicera), dc (dorsal carina of chelicera), ep1–3 (plates of epimeres 1–3), fl (flange of bothridial wall), Ge (gena), Ls (labrum), nc (nuchal constriction), oc.l (lateral eye), rb (rostral bulge), rm (rostral margin), sub.t (subcapitular tubercle); other labels indicate setae (see text). Scale bars: 50 Μm (B, C, G); 25 Μm (A, F); 10 Μm (E); 5 Μm (D).
FIGURE 5. A–G Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 5. A–G Nanohystrix hammerae n. sp., transmitted light compound microscope images of uncleared adult females, coarsely sectioned near sagittal plane (all lateral views, anterior to right). A, overview of fully distended specimen, with marked sections showing location of indicated close-ups; B, anterior third of fully contracted specimen, with close-up indicated; C, dorsal sejugal region, showing occipital wall and nuchal constriction of prodorsum, and extrinsic retractor muscles of chelicera; D, dorsal sejugal region and anterior region of notogaster, showing prodorsal retractor muscles (pr.mu; broken in C) inserted near border of nuchal constriction; E, posterior slope of hysterosoma in region of third scissure—at two focal planes, showing postanal suspensor muscle (po.mu) and deeper plane (right) with cuticular disk cd5 (with underlying fibers, fib) and seta h1 (with depressor muscle, h1.mu); F, section of middle scissure (more lateral than indicated in A) showing base of seta f1 and associated depressor muscle (f1.mu); G, ventrosejugal region, showing narrow ventral part of sejugal articulation and broad soft cuticle of epimere I. Other abbreviations: bng (anterior border of notogaster), cr.mu (cheliceral retractor muscles); cw (caecum wall), ep1–3 (plates of epimeres 1–3), nc (nuchal constriction), t.gr (transverse groove), sej (sejugal articulation), t.sul (transverse sulcus). All composites of 5–20 layers. Scale bars: 100 Μm (A, B); 25 Μm (C–G).
Fig. 6 in Direct development in African squeaker frogs (Anura: Arthroleptidae: Arthroleptis) reveals a mosaic of derived and plesiomorphic characters
Fig. 6 Different discrete developmental events subsumed within TS 4 in Arthroleptis. a Early TS 4 of A. wahlbergii, left: close-up of head region, right: lateral view with head facing left. b Mid-TS 4 of A. wahlbergii, left: close-up of head region; right: lateral view, arrow indicates somites. c Late TS 4 of A. xenodactyloides, left: close-up of head region, forelimb buds clearly defined, right: lateral view, arrow indicates somites. Scale bars = 1 mm
Fig. 1 in Direct development in African squeaker frogs (Anura: Arthroleptidae: Arthroleptis) reveals a mosaic of derived and plesiomorphic characters
Fig. 1 Habitat (a) and clutch (b) of Arthroleptis xenodactyloides at Luhota Forest, Mufindi, Southern Udzungwas, Tanzania. c Clutch of A. wahlbergii at Entumeni Forest, KwaZulu-Natal, South Africa. Clutches were photographed in situ after the removal of covering leaves and soil
Figure 3 in New species of the plesiomorphic genus Nixonia Masner (Hymenoptera, Platygastroidea, Platygastridae) from South Africa
Figure 3. Distribution and habitat association of Nixonia masneri and N. mcgregori. Biome map from Rutherford et al. (2006).
Figs 4-6. Baliomorpha cyclopsensis spec. nov. holotype, male genital structures. Fig. 4 in New Baliomorpha species (Trichoptera, Hydropsychidae) from Papua, Indonesia, with plesiomorphic state of the phallic head János Oláh & Peter Jan de Vries
Figs 4-6. Baliomorpha cyclopsensis spec. nov. holotype, male genital structures. Fig. 4. Lateral view of phallus; Fig. 5. Ventral view of phallus head; Fig. 6. Dorsal view of phallus head.
Figs 1-3. Baliomorpha cyclopsensis spec. nov. holotype, male genital structures. Fig. 1 in New Baliomorpha species (Trichoptera, Hydropsychidae) from Papua, Indonesia, with plesiomorphic state of the phallic head János Oláh & Peter Jan de Vries
Figs 1-3. Baliomorpha cyclopsensis spec. nov. holotype, male genital structures. Fig. 1. Lateral view of genitalia; Fig. 2. Ventral view of left gonopode; Fig. 3. Dorsal view of segments IX-X and cerci.
Figures 28-32 from: McKamey S, V. Brodbeck B (2013) Immature Stages and Hosts of Two Plesiomorphic, Antillean Genera of Membracidae (Hemiptera) and a new species of Antillotolania from Puerto Rico. ZooKeys 301: 1-12. https://doi.org/10.3897/zookeys.301.4234
Figures 28-32 - Photographs of live Puerto Rican Membracidae. 28–31 Antillotolania myricae, sp. n. adult female (28), adult male (29), third instar (defensive position) (30), and fifth instar (31), all on Myrica splendens (Myrtaceae) 32 Nessorhinus abbreviatus Ramos in same xeric habitat of Deiroderes inermis type locality (Guánica) on an unidentified host.
Figures 11-17 from: McKamey S, V. Brodbeck B (2013) Immature Stages and Hosts of Two Plesiomorphic, Antillean Genera of Membracidae (Hemiptera) and a new species of Antillotolania from Puerto Rico. ZooKeys 301: 1-12. https://doi.org/10.3897/zookeys.301.4234
Figures 11-17 - Antillotolania myricae sp. n. 11–15 fifth instar in anterior, dorsal, lateral and detail ventral views, respectively 16 third instar, with proportionately longer 'anal tube' (ventrally fused tergum IX) 17 surface vestiture of adult abdominal tergum IV.
Figures 1-10 from: McKamey S, V. Brodbeck B (2013) Immature Stages and Hosts of Two Plesiomorphic, Antillean Genera of Membracidae (Hemiptera) and a new species of Antillotolania from Puerto Rico. ZooKeys 301: 1-12. https://doi.org/10.3897/zookeys.301.4234
Figures 1-10 - Antillotolania myricae, sp. n. 1–3 female habitus in anterior, dorsal, and lateral views, respectively 4–6 male, same views 7 Dorsal views, distal half of pygofer with aedeagus and styles in resting position over subgenital plates. 8 Lateral view, aedeagus and styles 9–10 left forewing and hind wing, respectively.
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