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48 results for “alternans”
Figure 2 in Sybra alternans (Wiedemann) (Lamiinae: Apomecynini): an Asian cerambycid established on Easter Island, Chile
Figure 2. Collection sites for Sybra alternans on Easter Island, Chile (black circles). Rapa Nui National Park is indicated in light grey.
Figure 1 in Sybra alternans (Wiedemann) (Lamiinae: Apomecynini): an Asian cerambycid established on Easter Island, Chile
Figure 1. Female specimen of Sybra alternans (Wiedemann) collected on Easter Island (Chile), dorsal habitus. Scale bar = 2 mm.
Abb. 4 in Beobachtungen zur Biologie von Mecaspis alternans (Herbst, 1795) im Wallis, Schweiz (Curculionidae, Lixinae)
Abb. 4. Fundpunkte von Mecaspis alternans (Herbst, 1795) aus der Schweiz; unausgefüllte Fundpunkte zeigen Funde vor 1960. Datengrundlage boten Fundangaben von 99 Individuen aus den untersuchten Sammlungen sowie ausgewertete Literaturangaben (siehe Text).
Abb. 3. A in Beobachtungen zur Biologie von Mecaspis alternans (Herbst, 1795) im Wallis, Schweiz (Curculionidae, Lixinae)
Abb. 3. A) Junglarven von Mecaspis alternans (Herbst, 1795); B) und C) beim ersten Frass an Karottenstücken (Daucus carota); D) die grosse Larve in der Wurzel von Pastinaca sativa urens; E) die beiden Larven in Zucht. Ihre unterschiedliche Grösse ist auffällig, die Schlupftermine liegen nur rund 12 Tage auseinander. (Bilder C. Germann)
Abb. 2. A in Beobachtungen zur Biologie von Mecaspis alternans (Herbst, 1795) im Wallis, Schweiz (Curculionidae, Lixinae)
Abb. 2. A) Blick von Osten her ins Auffangbecken. Der Pfeil zeigt die exakte Fundstelle; B) Frassbild von Mecaspis alternans (Herbst, 1795) an Pastinaca sativa urens. (Bilder C. Germann)
Abb. 1. A in Beobachtungen zur Biologie von Mecaspis alternans (Herbst, 1795) im Wallis, Schweiz (Curculionidae, Lixinae)
Abb. 1. A) Imago von Mecaspis alternans (Herbst, 1795); B) Fundstelle der belegten Wirtspflanzen (Pfeil auf Pastinaca sativa urens) am Rand des Auffangbeckens bei Les Salaux; C) freigelegte Wurzel der Wirtspflanze; D) angeheftetae Klümpchen mit enthaltenen Eiern im oberen Wurzelbereich; E) freigelegtes olivgrünes Ei. (Bilder C. Germann)
Degree of alternans depends on AP morphology and pacing frequency.
<p>Dataset to determine how degree of alternans depends on AP morphology and pacing frequency.</p> <p>Clampfit files</p>
Data from: The life history of Chelymorpha alternans (Coleoptera: Chrysomelidae: Cassidinae) in Panamá
Here we describe an investigation of the life history characteristics, behavior, immature and adult morphologies of the Neotropical tortoise beetle Chelymorpha alternans (Boheman; Coleoptera: Chrysomelidae: Cassidinae) from the Republic of Panamá. Developmental times and behavioral characteristics for individuals maintained under laboratory and field conditions are evaluated. Survival rates of individuals maintained under field and laboratory conditions are compared. A list of convolvulaceous host plants utilized by C. alternans is provided. Empirical studies investigating the biology of C. alternans are reviewed. This study contributes to our knowledge of quantitative and qualitative aspects of this species' biology. These findings demonstrate that C. alternans is an organism that develops, behaves, and interacts with host plants, much as other tortoise beetles do. Rigorous, multi-year investigation of this ecologically representative species has produced a comparative life history description that expands our knowledge of general Cassidinae and Coleoptera biology. The natural history background, life history descriptions, diet breadth information, and literature review provided in this contribution make a compelling case for continued utilization of C. alternans as a representative tortoise beetle species for a variety of field and laboratory based studies in plant–insect interactions, chemical ecology, natural enemy ecology, and phenotypic trait and diet breadth evolution.
FIGURE 6 in Redescription of Lusitanipus alternans (Verhoeff, 1893) (Diplopoda, Callipoda, Dorypetalidae) and ecological data on its Laboulbeniales ectoparasites in caves
FIGURE 6. Lusitanipus alternans (Verhoeff, 1893) infected with fungi order Laboulbeniales. A) Black dots on the legs correspond to the insertion of the fungus Diplopodomyces lusitanipodos Santam., Enghoff & Reboleira, 2014. B) Scanning electron micrograph of the gonopod with the fungus Diplopodomyces veneris Santam., Enghoff & Reboleira, 2014 artificially colored in green.
FIGURE 5 in Redescription of Lusitanipus alternans (Verhoeff, 1893) (Diplopoda, Callipoda, Dorypetalidae) and ecological data on its Laboulbeniales ectoparasites in caves
FIGURE 5. Lusitanipus alternans (Verhoeff, 1893) scanning electron micrograph, gonopods. A–B) anterior and posterior view, c—coxite, f—pseudoglagellum, t—telepodite, s—solenomere; C–D) detail of the tip of telepodite, curved processes of the telepodite lamella (l): α, β, γ. Scales: 100 µm (A, B); 10 µm (C, E) and 1 µm (D).
FIGURE 1 in Redescription of Lusitanipus alternans (Verhoeff, 1893) (Diplopoda, Callipoda, Dorypetalidae) and ecological data on its Laboulbeniales ectoparasites in caves
FIGURE 1. Lusitanipus alternans (Verhoeff, 1893) habitus from d´el Rey Cave, Portugal and detail of colour pattern in the head and collum.
FIGURE 4 in Redescription of Lusitanipus alternans (Verhoeff, 1893) (Diplopoda, Callipoda, Dorypetalidae) and ecological data on its Laboulbeniales ectoparasites in caves
FIGURE 4. Lusitanipus alternans (Verhoeff, 1893). scanning electron micrograph. A–C) midbody rings; D) ozopore, E) spinnerets and F) close-up of left spinneret. Scales: 100 µm (A–C); 10 µm (D, E) and 1 µm (D, F).
FIGURE 2 in Redescription of Lusitanipus alternans (Verhoeff, 1893) (Diplopoda, Callipoda, Dorypetalidae) and ecological data on its Laboulbeniales ectoparasites in caves
FIGURE 2. Number of body rings of Lusitanipus alternans (Verhoeff, 1893) in different caves. Red—d´el Rey in Cantanhede- Outil massif; green—Corujeiras and blue—Soprador do Carvalho, both in Sicó massif.
FIGURE 3 in Redescription of Lusitanipus alternans (Verhoeff, 1893) (Diplopoda, Callipoda, Dorypetalidae) and ecological data on its Laboulbeniales ectoparasites in caves
FIGURE 3. Lusitanipus alternans (Verhoeff, 1893) scanning electron micrograph. A) head in dorsal view; B) head in lateral view; C) cuticle surface detail in the dorsal part of the collum, D) tip of the antenna. Scales: 100 µm (A, B, C) and 10 µm (D).
FIGURES 11–17. Tetramorium alternans Santschi, 1929 in Taxonomic revision of the Palaearctic Tetramorium chefketi species complex (Hymenoptera: Formicidae)
FIGURES 11–17. Tetramorium alternans Santschi, 1929. Gyne: alitrunk petiole and postpetiole, Fig. 11. dorsal view, Fig. 12. lateral view, Fig. 13. head. Worker: Fig. 14. head. Alitrunk petiole and postpetiole, Fig. 15. dorsal view, Fig. 16. lateral view, Fig. 17. scape, dorsal view.
FIGURE 2. Ultimate prefemora, dorsal A. Scolopendra longipes, Florida B. Scolopendra alternans, Haiti C in Resurrection of Scolopendra longipes Wood and Scolopendra cubensis Saussure from synonymy with Scolopendra alternans Leach (Chilopoda, Scolopendromorpha, Scolopendridae): an enigmatic species-group needing phylogeographic analysis, with an overview on the origin
FIGURE 2. Ultimate prefemora, dorsal A. Scolopendra longipes, Florida B. Scolopendra alternans, Haiti C. Scolopendra alternans, Puerto Rico; Ultimate prefemora, ventral D. Scolopendra longipes, Florida E. Scolopendra alternans, Haiti F. Scolopendra alternans, Puerto Rico (Scale bars = 2 mm).
FIGURE 5. Ultimate tergites, dorsal A. Scolopendra longipes, Florida B. Scolopendra alternans, Haiti C in Resurrection of Scolopendra longipes Wood and Scolopendra cubensis Saussure from synonymy with Scolopendra alternans Leach (Chilopoda, Scolopendromorpha, Scolopendridae): an enigmatic species-group needing phylogeographic analysis, with an overview on the origin
FIGURE 5. Ultimate tergites, dorsal A. Scolopendra longipes, Florida B. Scolopendra alternans, Haiti C. Scolopendra alternans, Puerto Rico (Scale bars = 2 mm)
FIGURE 4 in Resurrection of Scolopendra longipes Wood and Scolopendra cubensis Saussure from synonymy with Scolopendra alternans Leach (Chilopoda, Scolopendromorpha, Scolopendridae): an enigmatic species-group needing phylogeographic analysis, with an overview on the origin
FIGURE 4. Coxosternal tooth-plate, ventral A. S. longipes, Florida, RJM Collection B. S. longipes, Florida, Sugar Loaf Key, USNM, Neotype C. S. cubensis, Cuba, Matanzas, USNM D. S. cubensis, Cuba, El Guama, USNM E. S. alternans, Haiti, Planisance, USNM F. S. alternans, Haiti, Trou Caiman, USNM G. S. alternans, Dominican Republic, Santo Domingo, USNM H. S. alternans, Puerto Rico, RJM Collection I. S. alternans, Puerto Rico, Mayaqüez, FMNH J. S. alternans, Saba Island, FMNH (Scale Bars = 1 mm).
FIGURE 1. Live dorsal habitus A. Scolopendra longipes from Florida, measuring 105 in Resurrection of Scolopendra longipes Wood and Scolopendra cubensis Saussure from synonymy with Scolopendra alternans Leach (Chilopoda, Scolopendromorpha, Scolopendridae): an enigmatic species-group needing phylogeographic analysis, with an overview on the origin
FIGURE 1. Live dorsal habitus A. Scolopendra longipes from Florida, measuring 105 mm contracted and 120 mm extended. B. Scolopendra alternans from Haiti, measuring 140 mm contracted and 160 mm extended.
FIGURE 7. Left penultimate prefemur, dorsal A in Resurrection of Scolopendra longipes Wood and Scolopendra cubensis Saussure from synonymy with Scolopendra alternans Leach (Chilopoda, Scolopendromorpha, Scolopendridae): an enigmatic species-group needing phylogeographic analysis, with an overview on the origin
FIGURE 7. Left penultimate prefemur, dorsal A. Scolopendra longipes, Florida, B. Scolopendra longipes, Bimini C. Scolopendra alternans, Haiti D. Scolopendra alternans, Puerto Rico (Scale bars = 1 mm).
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