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294 results for “Cresson”
FIGURES 29–34 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURES 29–34. Eiphosoma caqueta sp. nov. (LEUA–53646). Holotype female. 29, Habitus, lateral view; 30, Head and mesosoma, lateral view; 31, Head, anterior view; 32, Head, mesoscutum and scutellum, dorsal view; 33, Scutellum and propodeum, dorsal view; 34, Wings.
FIGURES 57–62 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURES 57–62. Eiphosoma rumi sp. nov. (LEUA–53657). Holotype female. 57, Habitus, lateral view; 58, Head and mesosoma, lateral view; 59, Head, anterior view; 60, Head, mesoscutum and scutellum, dorsal view; 61, Scutellum and propodeum, dorsal view; 62, Wings.
FIGURES 78–83. Eiphosoma laphygmae Costa Lima, 1953 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURES 78–83. Eiphosoma laphygmae Costa Lima, 1953 (LEUA–53571). Female. 78, Habitus, lateral view; 79, Head and mesosoma, lateral view; 80, Head, anterior view; 81, Head, mesoscutum and scutellum, dorsal view; 82, Scutellum and propodeum, dorsal view; 83, Wings.
FIGURES 8–13 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURES 8–13. Eiphosoma interpunctum sp. nov. (LEUA–53650). Holotype female. 8, Habitus, lateral view; 9, Head and mesosoma, lateral view; 10, Head, anterior view; 11, Head, mesoscutum and scutellum, dorsal view; 12, Scutellum and propodeum, dorsal view; 13, Wings.
FIGURES 92–97 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURES 92–97. Eiphosoma macrum (Enderlein, 1921) (LEUA–53614). Female. 92, Habitus, lateral view; 93, Head and mesosoma, lateral view; 94, Head, anterior view; 95, Head, mesoscutum and scutellum, dorsal view; 96, Scutellum and propodeum, dorsal view; 97, Wings.
FIGURE 21 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURE 21. Geographic distribution of Eiphosoma nigrum (Szépligeti, 1906). Yellow circles represent new records and red represent previous records.
FIGURES 15–20 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURES 15–20. Eiphosoma nigrum (Szépligeti, 1906) (LEUA–53604). Male. 15, Habitus, lateral view; 16, Head and mesosoma, lateral view; 17, Head, anterior view; 18, Head, mesoscutum and scutellum, dorsal view; 19, Scutellum and propodeum, dorsal view; 20, Wings.
FIGURE 49 in Five new species of Eiphosoma Cresson, 1865 (Ichneumonidae: Cremastinae) from Colombia, new records, and a key to Colombian species
FIGURE 49. Geographic distribution of Eiphosoma eneke sp. nov..Yellow circles represent new records.
Figure 4 from: Miller LA, Benefield TD, Lounsbury SA, Lohrmann V, Blaschke JD (2019) DNA barcoding of rhopalosomatid larvae reveals a new host record and genetic evidence of a second species of Rhopalosoma Cresson (Hymenoptera, Rhopalosomatidae) in America north of Mexico. Journal of Hymenoptera Research 74: 35-46. https://doi.org/10.3897/jhr.74.38276
Figure 4 Neighbor Joining phylogeny of Rhopalosoma with Olixon sp. as the outgroup. Consensus support shown for important nodes. Cricket photos by Carl Strang (Hapithus agitator), and Wil Hershberger/Lang Elliott (H. saltator and Anaxipha exigua s.g.).
Figure 3 from: Miller LA, Benefield TD, Lounsbury SA, Lohrmann V, Blaschke JD (2019) DNA barcoding of rhopalosomatid larvae reveals a new host record and genetic evidence of a second species of Rhopalosoma Cresson (Hymenoptera, Rhopalosomatidae) in America north of Mexico. Journal of Hymenoptera Research 74: 35-46. https://doi.org/10.3897/jhr.74.38276
Figure 3 Maximum Likelihood phylogeny of Rhopalosoma with Olixon sp. as the outgroup. Bootstrap support shown for important nodes. Cricket photos by Carl Strang (Hapithus agitator), and Wil Hershberger/Lang Elliott (H. saltator and Anaxipha exigua s.g.).
Figure 1 from: Miller LA, Benefield TD, Lounsbury SA, Lohrmann V, Blaschke JD (2019) DNA barcoding of rhopalosomatid larvae reveals a new host record and genetic evidence of a second species of Rhopalosoma Cresson (Hymenoptera, Rhopalosomatidae) in America north of Mexico. Journal of Hymenoptera Research 74: 35-46. https://doi.org/10.3897/jhr.74.38276
Figure 1 Adult female Rhopalosoma cf. nearcticum attracted to a mercury-vapor lamp in Fairfax County, VA, USA on July 29, 2018. Photo by Ashley Bradford, initially posted on bugguide.net.
Figure 2 from: Miller LA, Benefield TD, Lounsbury SA, Lohrmann V, Blaschke JD (2019) DNA barcoding of rhopalosomatid larvae reveals a new host record and genetic evidence of a second species of Rhopalosoma Cresson (Hymenoptera, Rhopalosomatidae) in America north of Mexico. Journal of Hymenoptera Research 74: 35-46. https://doi.org/10.3897/jhr.74.38276
Figure 2 Life stages and representative specimens of RhopalosomaA 5th instar larva prior to burrowing (MK991305) B pupal case extracted from soil (MK991302) C adult after failing to emerge properly from cocoon (MK991303) D disarticulated mandible from pupal case (MK991302) E pupal case extracted from dirt showing still living pre-pupa (MK991301) F pupal case awaiting adult emergence (MK991300) G–I early instar larvae attached to: GHapithus agitator adult (larva: MK991304) and HH. saltator nymph (larva: MK991307) IAnaxipha exigua species group (inset: detached larva: MK991302).
Figs 5-6 in Mexican species of Labena Cresson (Hymenoptera, Ichneumonidae) with description of a new species
Figs 5-6. Labena spp., areolation of propodeum, dorsoposterior view: 5 – L. acerba sp. n., ♀ (holotype); 6 – L. tarsata Gauld, ♀, var. (Cañón del Novillo, 27.IV.1985).
Landscape composition and local floral resources influence foraging behavior but not the size of Bombus impatiens Cresson (Hymenoptera: Apidae) workers
<p>Here, we assessed how the morphology, weight and foraging behavior of individual workers are affected by their surrounding landscape. We hypothesized that colonies established in landscapes showing high cover of intensive crops and low cover of flowering crops, as well as low amounts of local floral resources, would produce smaller workers, which would perform fewer foraging trips and collect pollen loads less constant in species composition. We tested these predictions with 80 colonies of commercially reared <i>Bombus impatiens</i> Cresson placed in 20 landscapes spanning a gradient of agricultural intensification in southern Québec, Canada. We estimated weekly rate at which workers entered and exited colonies and captured eight workers per colony over a period of 14 weeks during the spring and summer of 2016. Captured workers had their wing, thorax, head, tibia, and dry weight measured, as well as their pollen load extracted and identified to the lowest possible taxonomic level. We did not detect any effect of landscape habitat composition on worker morphology or body weight, but found that foraging activity decreased with intensive crops. Moreover, higher diversity of local floral resources led to lower pollen constancy in intensively cultivated landscapes. Finally, we found a negative correlation between the size of workers and the diversity of their pollen load. Our results provide additional evidence that conservation actions regarding pollinators in arable landscapes should be made at the landscape rather than at the farm level.</p>
FIGURE 7 in Description of three new species of Labena Cresson from Mexico (Hymenoptera, Ichneumonidae, Labeninae), with notes on tropical species richness
FIGURE 7. Phenology of L. tekalina.
FIGURE 8 in Description of three new species of Labena Cresson from Mexico (Hymenoptera, Ichneumonidae, Labeninae), with notes on tropical species richness
FIGURE 8. Phenology of L. madoricola.
FIGURE 6 in Description of three new species of Labena Cresson from Mexico (Hymenoptera, Ichneumonidae, Labeninae), with notes on tropical species richness
FIGURE 6. Phenology of L. littoralis.
FIGURE 1 in The Peruvian Amazonian species of Epirhyssa Cresson (Hymenoptera: Ichneumonidae: Rhyssinae), with notes on tropical species richness
FIGURE 1. Hind wings of Epirhyssa spp.: A—E. cochabambae; B—E. braconoides.
FIGURE 9 in The Peruvian Amazonian species of Epirhyssa Cresson (Hymenoptera: Ichneumonidae: Rhyssinae), with notes on tropical species richness
FIGURE 9. Country-level distribution and species richness of Epirhyssa species.
FIGURE 2 in Association of the female of Perdita (Xeromacrotera) cephalotes (Cresson), and a replacement name for Perdita bohartorum Parker (Hymenoptera: Andrenidae)
FIGURE 2. Distribution of P. cephalotes (circles) and P. boharti (triangles). Scale bar = 200 km.
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