Browsing by Author "Herhold, Hollister W."
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Item Comparative anatomy of the insect tracheal system, part 1. Introduction, apterygotes, Paleoptera, Polyneoptera (Bulletin of the American Museum of Natural History, no. 459)(American Museum of Natural History., 2023-03-10) Herhold, Hollister W.; Davis, Steven R., 1983-; DeGrey, Samuel P.; Grimaldi, David A.A broad comparative study of insect respiratory morphology is presented. Tracheae, epidermal invaginations extending into the body in branching networks of tubes, supply tissues with direct access to air for gas exchange. While previous tracheal studies focused on a handful of taxa and lacked in consistency, here a unified system of tracheal nomenclature is established using visualizations from micro-CT scanning of representatives from apterygotes, Paleoptera, and Polyneoptera, totaling 29 species, 29 genera, and 26 families in 13 insect orders. Three-dimensional visualizations of named tracheal branches establish robust assessments of homology and provide a framework for further studies across class Insecta. Patterns in respiratory architecture are presented along with a discussion of future investigations into phylogenetic and physiological questions.Item Supplemental Material for 'Comparative anatomy of the insect tracheal system, part 1. Introduction, apterygotes, Paleoptera, Polyneoptera (Bulletin of the American Museum of Natural History, no. 459)'(New York, NY : American Museum of Natural History, 2023-03-10) Herhold, Hollister W.; Davis, Steven R., 1983-; Degrey, Samuel P.; Grimaldi, David A.Supplemental Material for 'Comparative anatomy of the insect tracheal system, part 1. Introduction, apterygotes, Paleoptera, Polyneoptera (Bulletin of the American Museum of Natural History, no. 459)' - https://digitallibrary.amnh.org/handle/2246/7313Item Unique metasomal musculature in sweat bees (Hymenoptera, Apoidea, Halictidae) revealed by micro-CT scanning. (American Museum novitates, no. 3920)(American Museum of Natural History., 2019-02-12) Herhold, Hollister W.; Davis, Steven R., 1983-; Smith, Corey Shepard.; Engel, Michael S.; Grimaldi, David A.Bees of the family Halictidae (Apoidea: Anthophila) have three pairs of thick, bundled muscles that are circular to subcircular in cross section within the first metasomal segment, as revealed by micro-CT scanning of 16 species in 15 genera of five bee families. In nonhalictids and the basal halictid subfamily Rophitinae, these muscles are planar (flat and sheetlike), typically lying between the anterior air sacs and abdominal wall. In Nomiinae and Halictinae, these muscles, especially the dorsal-ventral pair, bulge into air-sac space, partly enveloped by air-sac membrane. A possible function may be to facilitate metasomal compression and contraction, and thus air flow. The bundled shape of these derived halictid muscles is similar to that of flight muscles, but further data is needed to determine if they are fibrillar, which would suggest a completely different function.