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356 results for “larval instar”
FIGURES 1–7. Andogyrus seriatopunctatus, first instar larva. 1 in Morphology and chaetotaxy of the larval stages of Andogyrus seriatopunctatus Régimbart (Coleoptera: Adephaga: Gyrinidae)
FIGURES 1–7. Andogyrus seriatopunctatus, first instar larva. 1, Head capsule, dorsal view; 2, antenna, dorsal view; 3, mandible, dorsal view; 4, maxilla, dorsal view; 5, maxilla, ventral view; 6, labium, ventral view; 7, labium, dorsal view. Additional setae marked with a black square. Scale bars, Fig. 1: 0.5 mm; Figs 2–7: 0.1 mm.
Figure 5 in Larval instars of the ant Strumigenys solifontis Brown (Hymenoptera: Formicidae): the fallacy of size distribution
Figure 5. Scanning electron microscope images of the second- to fourth-instar larvae. (a) Lateroventral view of a second-instar larva. (b) Tip of a dorsal long seta of a second-instar larva. (c) Lateroventral view of a third-instar larva. (d) Lateroventral view of a fourth-instar larva.
Figure 4 in Larval instars of the ant Strumigenys solifontis Brown (Hymenoptera: Formicidae): the fallacy of size distribution
Figure 4. Four larval instars of Strumigenys solifontis observed in transmitted illumination. (a) First larval instar. The outer integument was separated from the interior tissue due to the latter's shrinkage by fixation in ethanol. Scale bar 200 µm. (b) First larval instar (above) and second larval instar (below). Scale bar 200 µm. (c) Second larval instar (left) and third larval instar (right). The arrowhead points to the shed exuviae of the previous instar. Scale bar 300 µm. (d) Fourth larval instar. Three different types of setae, unbranched, bifid and anchor-tipped, are indicated by arrowheads a, b and c, respectively. Scale bar 300 µm.
Figure 3 in Larval instars of the ant Strumigenys solifontis Brown (Hymenoptera: Formicidae): the fallacy of size distribution
Figure 3. Scanning electron microscope images of the first larval instar. (a) Lateroventral view of the whole body. The posterior body part is still in the egg membrane as indicated by an asterisk. The arrowhead points to the dorsal region enlarged in (b).
Figure 1 in Larval instars of the ant Strumigenys solifontis Brown (Hymenoptera: Formicidae): the fallacy of size distribution
Figure 1. Head widths of Strumigenys solifontis larvae. The x-axis is represented by divisions of the ocular micrometre used. (a) Head widths of 215 larvae examined at 250× magnification (1 division = 7.3 µm). The three peaks correspond to the second, third and fourth instars. (b) Head widths of 8 first-instar larvae that were found attached to the egg pile. They have practically no long setae and are clearly distinguished from the second instar (see Figure 4). (c) Head widths of 161 larvae examined at 160× (1 division = 10.0 µm).
Figure 2 in Larval instars of the ant Strumigenys solifontis Brown (Hymenoptera: Formicidae): the fallacy of size distribution
Figure 2. Relationship between head width and body length in 113 larvae (+) and 11 prepupae (o) of Strumigenys solifontis. The head width was measured at 250× and the body length was measured at 250×, or at 100× magnification for larger larvae and prepupae.
Figures 44–53. Hybogralius hartmeyeri, third instar larva. 44–46 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)
Figures 44–53. Hybogralius hartmeyeri, third instar larva. 44–46, head capsule (44, dorsally; 45, ventrally; 46, labroclypeus). 47–48, mandibles, dorsal view (47, left mandible; 48, right mandible). 49, antenna, dorsal view. 50–51, maxilla (50, dorsal view; 51, ventral view). 52, mentum and prementum, dorsal view. 53, prementum, ventral view. Scale bars: Figs 44–45: 0.1 mm, Figs 46–53: 0.05 mm.
Figures 35–43. Ametor scabrosus, first instar larva. 35–37 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)
Figures 35–43. Ametor scabrosus, first instar larva. 35–37, head capsule (35, dorsally; 36, ventrally; 37, labroclypeus). 38, antenna, dorsal view. 39, right mandible, dorsal view. 40–41, maxilla (40, dorsal view; 41, ventral view). 42–43, mentum and prementum (42, dorsal view; 43, ventral view). Scale bars: Figs 35–36: 0.1 mm, Figs 37–43: 0.05 mm.
FIGURE 4. A in Larval morphology of Epomis circumscriptus (Duftschmid 1812) and of first instar E. dejeani, Dejean, 1831, (Coleoptera, Carabidae, Chlaeniini), with morphofunctional remarks
FIGURE 4. A, Epomis circumscriptus (I instar larva) head (scale bar, 0.50 mm); B, E. circumscriptus (III instar larva) head (scale bar, 1 mm) and C, Labium (scale bar, 0.50 mm); D, Inner lobe with lateral seta of E. circumscriptus (I instar larva) (scale bar, 0.10 mm); E, E. dejeani (I instar larva) head (scale bar, 0.50 mm) and F, Lateral view of head (scale bar, 0.50 mm); G, E. dejeani (III instar larva) head (scale bar, 1 mm).
FIGURE 2 in Larval morphology of Epomis circumscriptus (Duftschmid 1812) and of first instar E. dejeani, Dejean, 1831, (Coleoptera, Carabidae, Chlaeniini), with morphofunctional remarks
FIGURE 2. Epomis circumscriptus (III instar larva). A, Head, dorsal view (scale bar, 1 mm); B, Right antenna (scale bar, 0.50 mm); C, Right mandible (scale bar, 0.25 mm); D, Nasale (scale bar, 0.50 mm); E, Right maxilla (scale bar, 0.50 mm); F, Cerci, dorsal view (scale bar, 0.50 mm); G, Pronotum (scale bar, 0.50 mm); H, Mesonotum (scale bar, 1 mm); I, Tergite I abdominal (scale bar, 1 mm).
FIGURE 1 in Larval morphology of Epomis circumscriptus (Duftschmid 1812) and of first instar E. dejeani, Dejean, 1831, (Coleoptera, Carabidae, Chlaeniini), with morphofunctional remarks
FIGURE 1. Epomis circumscriptus (I instar larva). A, Head, dorsal view (scale bar, 0.50 mm); B, Left antenna (scale bar, 0.50 mm); C, Left mandible (scale bar, 0.25 mm); D, Nasale (scale bar, 0.5 mm); E, Right maxilla (scale bar, 0.25 mm); F, Labium, dorsal view (scale bar, 0.25 mm); G, Cerci, dorsal view (scale bar, 0.50 mm); H, Pronotum (scale bar, 0.50 mm); I, Mesonotum (scale bar, 0.50 mm); L, Tergite I abdominal (scale bar, 0.50 mm).
FIGURE 5. Dendrograms from cluster analysis. a in Intra- and interspecific analysis of first instar larval morphology in the genus Berberomeloe Bologna 1989 (Coleoptera: Meloidae)
FIGURE 5. Dendrograms from cluster analysis. a—CA on morphometric measurements (asterisks indicate misclassifications); b—CA on morphometric measurements + discriminant characters among the two species (on grey: individuals from Granada). Broken line = height of cut.
FIGURE 4. Principal component analysis. a in Intra- and interspecific analysis of first instar larval morphology in the genus Berberomeloe Bologna 1989 (Coleoptera: Meloidae)
FIGURE 4. Principal component analysis. a—Factor loadings of principal component analysis (BL: body length; HL: head length; HW: maximum head width; HW2: head width at the posterior bend; TL: thorax length; PTL: 1st thoracic segment length; AL: abdomen length; SA1L: antennal sensory appendix I length; SA1W: antennal sensory appendix I width; SA2L: antennal sensory appendix II length; SA2W: antennal sensory appendix II width;); b—Factor scores of the examined populations on the first two principal component; c—Factor scores of the two species on the first two principal component.
FIGURE 3 in Intra- and interspecific analysis of first instar larval morphology in the genus Berberomeloe Bologna 1989 (Coleoptera: Meloidae)
FIGURE 3. Berberomeloe majalis, SEM photographs of first instar larva. a—head in dorsal; b—ventral; and c—in frontal view; d—mandibles in dorsal view; e—mouthparts, ventral view; f—left antenna, ventral view; g—claw, dorsal view; e—abdominal segments I and II, lateral view. Scale bars: 100 µm (Figs. a–c); 50 µm (Figs. d–f, h); 20 µm (Fig. g).
FIGURE 1. Berberomeloe, first instar larva habitus. a—B in Intra- and interspecific analysis of first instar larval morphology in the genus Berberomeloe Bologna 1989 (Coleoptera: Meloidae)
FIGURE 1. Berberomeloe, first instar larva habitus. a—B. insignis, lateral view (SEM photograph) (scale bar=500 µm); b—B. insignis, dorsal view; and c—B. majalis, dorsal view (optical microscope photographs). Scale bars: 500 µm (Fig. a); 1 mm (Figs. b, c).
FIGURE 2 in Intra- and interspecific analysis of first instar larval morphology in the genus Berberomeloe Bologna 1989 (Coleoptera: Meloidae)
FIGURE 2. Berberomeloe insignis, SEM photographs of first instar larva. a—head, dorsal view; b—head, ventral view; c—head, frontal view; d—mandibles, dorsal view; e—mouthparts, ventral view; f—left antenna, ventral view; g—claw, dorsal view; h –abdominal segments I and II, lateral view. Scale bars: 200 µm (Figs. a–c); 50 µm (Figs. d–f); 20 µm (Fig. g) 100 µm (Fig. h).
FIGURES 1–10. Leptagrion andromache, last larval instar. 1 in Description of the bromeliad-dwelling final instar larva of Leptagrion andromache Hagen in Selys (Zygoptera: Coenagrionidae)
FIGURES 1–10. Leptagrion andromache, last larval instar. 1. Right mandible, inner view; 2. Left mandible, inner view; 3. Prementum, dorsal view; 4. Labial palp, dorsal view; 5. Median caudal lamella, lateral view; 6. Lateral caudal lamella, lateral view; 7. Male S9–10, dorsal view; 8. Male S9–10, lateral view; 9. Female S9–10, dorsal view; 10. Female S9–10, lateral view. Scales: Figs. 1–2 = 0.1 mm; Figs. 3, 7–8 = 0.22 mm; Fig. 4 = 0.076 mm; Figs. 5–6 = 0.08 mm; Figs. 9–10 = 0.25 mm.
Figs. 5–6. Darwinhydrus solidus, instar III. 5 in Larval Description and Phylogenetic Placement of the South African Endemic Genera Coelhydrus Sharp and Darwinhydrus Sharp (Coleoptera: Dytiscidae: Hydroporinae: Hyphydrini)
Figs. 5–6. Darwinhydrus solidus, instar III. 5) Head capsule, dorsal view; 6) Abdominal segment VIII and proximal portion of urogomphi, dorsal view. Scale bars = 0.50 mm.
Figs. 12–15. Onichodon rugicollis, fifth instar. 12 in Eucnemid Larvae of the Nearctic Region. Part III: Mature Larval Descriptions for Three Species ofOnichodonNewman, 1838 (Coleoptera: Eucnemidae: Macraulacinae: Macraulacini), with Notes on Their Biology
Figs. 12–15. Onichodon rugicollis, fifth instar. 12) Head, dorsal view; 13) Head and thoracic region, dorsal view;
Figs. 7–10. Onichodon orchesides, fifth instar. 7 in Eucnemid Larvae of the Nearctic Region. Part III: Mature Larval Descriptions for Three Species ofOnichodonNewman, 1838 (Coleoptera: Eucnemidae: Macraulacinae: Macraulacini), with Notes on Their Biology
Figs. 7–10. Onichodon orchesides, fifth instar. 7) Head, dorsal view; 8) Head and thoracic region, dorsal view;
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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