Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial Lineages

While adult fireflies are terrestrial, their larvae inhabit various habitat types, and a lack of comprehensive research on the feeding habits of these larvae across different habitats has greatly impeded the development of artificial diets. Here, we tested 14 types of foods, primarily covering gastr...

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Main Authors: Lin-Yu Yang, Da-Rui Tang, Fu-Xin Li, Shi-Qi Luo, Cheng-Quan Cao, Qi-Lin Zhang
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Insects
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Online Access:https://www.mdpi.com/2075-4450/15/12/1004
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author Lin-Yu Yang
Da-Rui Tang
Fu-Xin Li
Shi-Qi Luo
Cheng-Quan Cao
Qi-Lin Zhang
author_facet Lin-Yu Yang
Da-Rui Tang
Fu-Xin Li
Shi-Qi Luo
Cheng-Quan Cao
Qi-Lin Zhang
author_sort Lin-Yu Yang
collection DOAJ
description While adult fireflies are terrestrial, their larvae inhabit various habitat types, and a lack of comprehensive research on the feeding habits of these larvae across different habitats has greatly impeded the development of artificial diets. Here, we tested 14 types of foods, primarily covering gastropods, vertebrates, and fruit, to survey feed for aquatic (<i>Aquatica leii</i> and <i>Sclerotia substriata</i>), semi-aquatic (<i>Pygoluciola qingyu</i> and <i>Pygoluciola</i> sp.), and terrestrial (<i>Pyrocoelia analis</i>) fireflies. The results show that <i>A. leii</i>, <i>S. substriata</i>, <i>P. qingyu</i>, <i>Pygoluciola</i> sp., and <i>P. analis</i> fed on 12, 6, 10, 10, and 7 different foods, respectively, showing an obvious difference in feeding range among various inhabit types of fireflies. Aquatic lineages preferred to consume freshwater snails, followed by pork meat and land slugs, while semi-aquatic fireflies favored freshwater snails, followed by fish and shrimp. Favorite foods were thus freshwater snails such as <i>Cipangopaludina chinensis</i> for both aquatic and semi-aquatic fireflies, but feeding preference differed for second favorite foods (e.g., pork vs. fish meat). Terrestrial <i>Pyrocoelia analis</i> showed different feeding preferences compared withthe other two habitat lineages, with terrestrial snails and slugs as their favorite foods, followed by freshwater snails, such as <i>C. chinensis</i>. These findings not only uncovered larval feeding habits of fireflies across various inhabit types but also indicated that readily available and affordable <i>C. chinensis</i> products can serve as wild snail alternatives in the artificial feeding of fireflies. This study is the first to explore the feeding habits of firefly species inhabiting water and land habitat types, adding to the understanding of the feeding characteristics of fireflies.
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series Insects
spelling doaj-art-d7e73af2a0ce41f8bb2270b7710bebb72025-08-20T02:56:07ZengMDPI AGInsects2075-44502024-12-011512100410.3390/insects15121004Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial LineagesLin-Yu Yang0Da-Rui Tang1Fu-Xin Li2Shi-Qi Luo3Cheng-Quan Cao4Qi-Lin Zhang5Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaCollege of Life Sciences, Leshan Normal University, Leshan 614004, ChinaFaculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaWhile adult fireflies are terrestrial, their larvae inhabit various habitat types, and a lack of comprehensive research on the feeding habits of these larvae across different habitats has greatly impeded the development of artificial diets. Here, we tested 14 types of foods, primarily covering gastropods, vertebrates, and fruit, to survey feed for aquatic (<i>Aquatica leii</i> and <i>Sclerotia substriata</i>), semi-aquatic (<i>Pygoluciola qingyu</i> and <i>Pygoluciola</i> sp.), and terrestrial (<i>Pyrocoelia analis</i>) fireflies. The results show that <i>A. leii</i>, <i>S. substriata</i>, <i>P. qingyu</i>, <i>Pygoluciola</i> sp., and <i>P. analis</i> fed on 12, 6, 10, 10, and 7 different foods, respectively, showing an obvious difference in feeding range among various inhabit types of fireflies. Aquatic lineages preferred to consume freshwater snails, followed by pork meat and land slugs, while semi-aquatic fireflies favored freshwater snails, followed by fish and shrimp. Favorite foods were thus freshwater snails such as <i>Cipangopaludina chinensis</i> for both aquatic and semi-aquatic fireflies, but feeding preference differed for second favorite foods (e.g., pork vs. fish meat). Terrestrial <i>Pyrocoelia analis</i> showed different feeding preferences compared withthe other two habitat lineages, with terrestrial snails and slugs as their favorite foods, followed by freshwater snails, such as <i>C. chinensis</i>. These findings not only uncovered larval feeding habits of fireflies across various inhabit types but also indicated that readily available and affordable <i>C. chinensis</i> products can serve as wild snail alternatives in the artificial feeding of fireflies. This study is the first to explore the feeding habits of firefly species inhabiting water and land habitat types, adding to the understanding of the feeding characteristics of fireflies.https://www.mdpi.com/2075-4450/15/12/1004firefliesfeeding habitsfeeding rangefeeding preferencehabitat types
spellingShingle Lin-Yu Yang
Da-Rui Tang
Fu-Xin Li
Shi-Qi Luo
Cheng-Quan Cao
Qi-Lin Zhang
Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial Lineages
Insects
fireflies
feeding habits
feeding range
feeding preference
habitat types
title Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial Lineages
title_full Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial Lineages
title_fullStr Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial Lineages
title_full_unstemmed Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial Lineages
title_short Larval Feeding Habits of Five Firefly Species Across Aquatic, Semi-Aquatic, and Terrestrial Lineages
title_sort larval feeding habits of five firefly species across aquatic semi aquatic and terrestrial lineages
topic fireflies
feeding habits
feeding range
feeding preference
habitat types
url https://www.mdpi.com/2075-4450/15/12/1004
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