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. 2022 May 19;12:8358. doi: 10.1038/s41598-022-12351-w

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Scanning electron micrographs of a third instar larva of Chrysomya albiceps from the AlP group. (A) Larval body composed of groups of tubercles (t) located at the anterior and posterior ends of each segment, anterior (ae), and posterior ends (pe). Notes: Shrinkage in larval length, arrows abdominal segments. (B) Ventral view of the cephalic region with antennae (a), maxillary palp (mp), spines (s), dental sclerite (ds), short mouth hooks (mh), oral cristae (oc). (C) Dorsal view of the cephalic region with antennae (a), maxillary palp (mp), spines (s), dental sclerite (ds), short mouth hooks (mh), oral cristae (oc), and deformed anterior spiracle (as). (D) Details of antennae (a) and maxillary palp with five papillae and deformed anterior spiracle (as), spines (s), oral cristae (oc), and dental sclerite (ds). (E) Details of anterior spiracles (as) in a row. (F) Anal segment with posterior spiracles (arrows), tubercles (t). (G) Magnified part of the micrograph. (F) Details of posterior spiracles. (H) Details of the anal segment with deformed three spiracular openings (arrows). (I) Hypogenesis of posterior spiracles (arrows). (J) Completely deformed three spiracular openings (arrows).