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427 results for “lady beetles”
Fig. 2 in Missing geographic link: minute lady beetles (Coleoptera: Coccinellidae: Microweiseinae) from Mount Wilhelm, New Guinea
Fig. 2. Morphology of Scymnomorphus species. A–H – S. bimaculatus sp. nov.: A – abdomen, female; B – antenna; C – ovipositor; D – spermatheca; E – tegmen; inner view; F – tegmen, lateral view; G – penis, lateral view; H – abdomen, male. I–P – S. kausi sp. nov.: I – abdomen, female; J – antenna; K – ovipositor; L – spermatheca; M – tegmen, inner view; N – tegmen, lateral view; O – penis, lateral view; P – abdomen, male (arrows indicate glandular opening pores).
Data from: Semi-natural habitat, but not aphid amount or continuity, predicts lady beetle abundance across agricultural landscapes
<p>The amount of semi-natural habitat surrounding farm fields is a common but inconsistent predictor of natural enemy populations and predation services. Standard land cover metrics may not accurately capture the actual availability of limiting resources for natural enemies and can miss important dynamics across space and time. Theory from animal movement and landscape ecology predicts that regions with more, spatio-temporally continuous resources (i.e. food, shelter) should have larger predator populations and enhanced biological control. To test these predictions empirically, we designed a study measuring aphids, lady beetles, and predation services in agricultural landscapes in Wisconsin, USA. In two study years, we sampled lady beetles and aphids in 336 crop fields (corn, soybean, alfalfa, and small grains) and adjacent semi-natural habitat patches (grasslands and woodlands) across 24 1.5 km buffer landscapes at 4–7 time points each, and in one year we assessed predation rates with sentinel egg cards. We used aphid counts to model habitat-specific aphid phenologies, from which we calculated landscape indices of prey amount and continuity. These indices, along with semi-natural habitat area, were used to predict lady beetle abundance. While there were strong differences in the abundance and timing of aphids by habitat, semi-natural habitat amount was still a better predictor of lady beetle counts and sentinel egg predation than either aphid amount or continuity indices in these landscapes.</p> <p>Synthesis and application: Our findings confirm the robust relationship between lady beetles and semi-natural habitat in agricultural landscapes, and highlight the complexities of measuring fine-scale resource heterogeneity in real landscapes. Retaining or adding woodland and grassland patches in agricultural landscapes is likely to support larger lady beetle populations and enhance predation in crop fields. Our results suggest that these habitats may be more important for shelter than prey continuity, though this mechanism warrants further investigation. Future work should continue to refine experimental methods for the successful integration of landscape ecology and animal behavior to support conservation goals.</p>
Fig. 4 in Lady beetle oviposition site choices: maternal effects on offspring performance
Fig. 4. Chroma (carotenoids) of Cycloneda sanguinea (A) and Hippodamia convergens (B) adults that developed with the Uroleucon (grey) and Brevicoryne (black) diets during the immature stages as a function of the mean brightness. Females are indicated with triangles and males with crosses. The dashed ellipse highlights the difference in mean brightness of Cycloneda sanguinea adults for each diet.
Fig. 2 in Lady beetle oviposition site choices: maternal effects on offspring performance
Fig. 2. Individual adult weight (mg) for Cycloneda sanguinea, Hippodamia convergens, and Harmonia axyridis that emerged afer the Uroleucon (grey) and Brevicoryne (black) larvae diets as a function of development time (d). Females are indicated with triangles and males with crosses. The dashed line indicates the weight difference of Cycloneda sanguinea in each diet.
Fig. 1 in Lady beetle oviposition site choices: maternal effects on offspring performance
Fig. 1. Survival curves as a function of time for Harmonia axyridis (A) and Cycloneda sanguinea (B) immatures fed with aphids Brevicoryne (white) or Uroleucon (grey). Straight lines demarcate the average periods for instars (first to fourth in Roman numerals) and pupae.
Fig. 3 in Lady beetle oviposition site choices: maternal effects on offspring performance
Fig. 3. Reflectance spectrum for the elytra of Cycloneda sanguinea (n = 33) (A) and Hippodamia convergens (n = 18) (B) adults when fed with Uroleucon or Brevicoryne aphids during the immature stages. Each curve represents the average of 6 spectral measures (3 in each elytra) performed for each individual.
Fig. 5 in Lady beetle oviposition site choices: maternal effects on offspring performance
Fig. 5. PCA graph performed for the following variables: development time (time), brightness, weight, and chroma derived from carotenoids, with the position of Hippodamia convergens (A) and Cycloneda sanguinea (B) adults which have emerged from the Uroleucon (grey) and Brevicoryne (black) diet during the immature stages, when sorted in function of the 2 main axes of data variation.
Linked collectors and determiners for: Review of lady beetles in the Cycloneda germainii species complex (Coleoptera; Coccinellidae: Coccinellinae: Coccinellini) with descriptions of new and unusual species from Chile and surrounding countries.
Natural history specimen data linked to collectors and determiners held within, "Review of lady beetles in the Cycloneda germainii species complex (Coleoptera; Coccinellidae: Coccinellinae: Coccinellini) with descriptions of new and unusual species from Chile and surrounding countries". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/3057cbcd-031a-4a23-b2df-c3f768da9262">https://bionomia.net/dataset/3057cbcd-031a-4a23-b2df-c3f768da9262</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/3057cbcd-031a-4a23-b2df-c3f768da9262">https://gbif.org/dataset/3057cbcd-031a-4a23-b2df-c3f768da9262</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Vermont Lady Beetle (Coccinellidae) Specimens in the Vermont Forest, Parks and Recreation Insect Collection.
Natural history specimen data linked to collectors and determiners held within, "Vermont Lady Beetle (Coccinellidae) Specimens in the Vermont Forest, Parks and Recreation Insect Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/c1e163c3-30f4-4230-a551-bbfc0677853e">https://bionomia.net/dataset/c1e163c3-30f4-4230-a551-bbfc0677853e</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/c1e163c3-30f4-4230-a551-bbfc0677853e">https://gbif.org/dataset/c1e163c3-30f4-4230-a551-bbfc0677853e</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Fairbanks Museum and Planetarium Lady Beetle (Coccinellidae) Specimens.
Natural history specimen data linked to collectors and determiners held within, "Fairbanks Museum and Planetarium Lady Beetle (Coccinellidae) Specimens". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/58dfb99f-44d0-4cfb-a08b-8b62cfcf91de">https://bionomia.net/dataset/58dfb99f-44d0-4cfb-a08b-8b62cfcf91de</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/58dfb99f-44d0-4cfb-a08b-8b62cfcf91de">https://gbif.org/dataset/58dfb99f-44d0-4cfb-a08b-8b62cfcf91de</a>. Formatted as a Frictionless Data package.
Data from: Semi-natural habitat, but not aphid amount or continuity, predicts lady beetle abundance across agricultural landscapes
Open the record for dataset details and reuse information.
Fig. 4 in Multicoloured Asian lady beetle (Harmonia axyridis (Pallas, 1773)) (Coleoptera: Coccinellidae) for the first time in the fauna of Latvia
Fig. 4. Imago of Harmonia axyridis (Pall.)
Fig. 3 in Multicoloured Asian lady beetle (Harmonia axyridis (Pallas, 1773)) (Coleoptera: Coccinellidae) for the first time in the fauna of Latvia
Fig. 3. Imago and pupa of Harmonia axyridis (Pall.)
FIGURES 11–14 in A new monotypic genus and new species of lady beetle (Coleoptera: Coccinellidae Coccinellini) from western South America
FIGURES 11–14. Genera of the Neda-group, key characters drawn from exemplars of the type species of each genus: a, body form in dorsal view, males; b, diagrammatic view of venter, males, elytral epipleuron shown in red, abdominal ventrites in white; c, apex of abdomen, female, arrow points to hind margin of 4th ventrite; d, shape of elytra in cross-sectional view through widest part; e, basal lobe of male genitalia in ventral view rescaled to the same length for comparative purposes. Scale bar applies to figures in rows a–d. 11, Argosadalia priscilla sp. nov.; 12, Neoharmonia venusta Melsheimer, 1847; 13, Neda norrisii (Guérin-Méneville, 1844); 14, Mononeda marginata (L., 1767).
FIGURES 1–10 in A new monotypic genus and new species of lady beetle (Coleoptera: Coccinellidae Coccinellini) from western South America
FIGURES 1–10. External morphology of lady beetles in the tribe Coccinellini. 1–4, Argosadalia priscilla sp. nov. habitus illustrations: 1–3, holotype, male (scale bar lower left): 1, dorsal; 2, lateral; 3, frontal; 4, paratype, female (scale bar upper right), dorsal. 5–6, A. priscilla sp. nov., ventral view of mouthparts: 5, labial prementum and palpi; 6, maxillary palp. 7–10, abdominal postcoxal lines: 7, A. priscilla sp. nov.; 8, Adalia bipunctata L., 1758; 9, Neoharmonia venusta (Melsheimer, 1847); 10, Coccinella sp.
FIGURE 20 in A new monotypic genus and new species of lady beetle (Coleoptera: Coccinellidae Coccinellini) from western South America
FIGURE 20. Known distribution of Argosadalia priscilla sp. nov. plotted on a vegetation map of tropical South America (after Eva et al. 1999). Data points are represented in red dots. The hollow dots show the two conflicting interpretations of the locality of a specimen collected by Garlepp: Ocobamba, Peru vs. Ocobaya, Bolivia (see "Remarks," below, for further information).
FIGURE 7 in Review of lady beetles in the Cycloneda germainii species complex (Coleoptera; Coccinellidae: Coccinellinae: Coccinellini) with descriptions of new and unusual species from Chile and surrounding countries
FIGURE 7. Male genitalia of Cycloneda species (above, ventral and right lateral views of phallobase; below, right lateral view of sipho (=aedeagus)): A, C. sicardi (Brèthes), specimen from Tacuil, Salta; B, C. boliviana (Mulsant), specimen from Molinos, Salta.
FIGURE 8 in Review of lady beetles in the Cycloneda germainii species complex (Coleoptera; Coccinellidae: Coccinellinae: Coccinellini) with descriptions of new and unusual species from Chile and surrounding countries
FIGURE 8. Female genitalia of Cycloneda species (oriented with anterior end pointing left): A, C. lacrimosa González & Vandenberg, new species, allotype; B, C. disconsolata Vandenberg & González, new species, holotype; C, C. patagonica González & Vandenberg, new species; D, Cycloneda germainii (Crotch); E, C. eryngii (Mulsant); F, C. sicardi (Brèthes), specimen from Tacuil, Salta; G, C. boliviana (Mulsant), specimen from Molinos, Salta.
FIGURE 2 in Annotated list of island lady beetles from Chile (Coleoptera: Coccinellidae)
FIGURE 2. Islands landscapes: a: San Ambrosio Island, Islas Desventuradas (Lukas Mekis, Island Conservation). b: Rano Kau crater, Rapa Nui (DDC). c: Robinson Crusoe Island, Juan Fernández archipelago (DDC). d: Isla Mocha (DDC) e: Isla Tenglo (foto Manxuc, Wikipedia). f: Isla de Chiloé, (DDC). g: Isla Guarello (Carlos Pedraza, Wikipedia). h: Isla Riesco (kauyeken. cl). i: Isla Grande de Tierra del Fuego (DDC). j: Isla Navarino (DDC).
FIGURE 5. Island Coccinellidae from Chile, other tribes. a in Annotated list of island lady beetles from Chile (Coleoptera: Coccinellidae)
FIGURE 5. Island Coccinellidae from Chile, other tribes. a: Neoryssomus germainii; b: N. variabilis; c: Neorhyzobius fuegensis; d: Parastethorus histrio; e: Cryptolaemus montrouzieri; f: Novius cardinalis; g: Scymnus bicolor; h: Scymnus loewii; i: Hyperaspis festiva; j: Parasidis brethesi; k: Coccidophilus sp.; l: Stictospilus darwini.
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