An in-depth description of head morphology and mouthparts in larvae of the black soldier fly Hermetia illucens.

Animals Diptera / anatomy & histology Head / anatomy & histology Larva / anatomy & histology Microscopy Microscopy, Electron, Scanning Mouth / anatomy & histology
Black soldier fly Feeding habits Functional morphology Insect mouthparts Mandibular-maxillary apparatus

Journal

Arthropod structure & development
ISSN: 1873-5495
Titre abrégé: Arthropod Struct Dev
Pays: England
ID NLM: 100972232

Informations de publication

Date de publication:
Sep 2020
Historique:
received: 09 03 2020
revised: 15 06 2020
accepted: 17 06 2020
pubmed: 10 8 2020
medline: 22 12 2020
entrez: 10 8 2020
Statut: ppublish

Résumé

The larvae of the black soldier fly (BSF) Hermetia illucens are increasingly being used for waste management purposes given their ability to grow on a wide range of organic decaying materials. Although significant efforts have been spent to improve the mass rearing of BSF larvae on specific substrates and their bioconversion capability, little is known about the biology of this insect, especially with regards to the digestive system. In this study, we analyzed the morphology of the head and buccal apparatus of H. illucens larvae by using optical and scanning electron microscopy, evaluating the different mouthparts and their modifications during larval development. Our analysis showed that the larval head of H. illucens presents similarities to those of campodeiform insect larvae, whereas the mandibular-maxillary complex represents a food intake solution typical of Stratiomyidae that enables BSF larvae to ingest semiliquid food. The mouthparts resemble a "tunnel boring machine", where the hypopharynx separates finer organic particles from coarser and inorganic ones.

Identifiants

DOI: 10.1016/j.asd.2020.100969 PMID: 32769052
pubmed: 32769052
pii: S1467-8039(20)30092-X
doi: 10.1016/j.asd.2020.100969
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

100969

Informations de copyright

Copyright © 2020 Elsevier Ltd. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of Competing Interest The authors declare that they have no conflict of interest.

Auteurs

Daniele Bruno (D)

Department of Biotechnology and Life Sciences, University of Insubria, Via J. H. Dunant, 3, Varese, 21100, Italy.

Teresa Bonacci (T)

Department of Biology, Ecology and Earth Sciences, University of Calabria, Ponte P. Bucci, Cubo 4B, Rende, 87036, Italy.

Marcella Reguzzoni (M)

Department of Medicine and Surgery, University of Insubria, Via F. Guicciardini, 9, Varese, 21100, Italy.

Morena Casartelli (M)

Department of Biosciences, University of Milano, Via G. Celoria, 26, Milano, 20133, Italy; BAT Center - Interuniversity Center for Studies on Bioinspired Agro-environmental Technology, University of Napoli Federico II, Via Università, 100, Portici, 80055, Italy.

Annalisa Grimaldi (A)

Department of Biotechnology and Life Sciences, University of Insubria, Via J. H. Dunant, 3, Varese, 21100, Italy; BAT Center - Interuniversity Center for Studies on Bioinspired Agro-environmental Technology, University of Napoli Federico II, Via Università, 100, Portici, 80055, Italy.

Gianluca Tettamanti (G)

Department of Biotechnology and Life Sciences, University of Insubria, Via J. H. Dunant, 3, Varese, 21100, Italy; BAT Center - Interuniversity Center for Studies on Bioinspired Agro-environmental Technology, University of Napoli Federico II, Via Università, 100, Portici, 80055, Italy. Electronic address: gianluca.tettamanti@uninsubria.it.

Pietro Brandmayr (P)

Department of Biology, Ecology and Earth Sciences, University of Calabria, Ponte P. Bucci, Cubo 4B, Rende, 87036, Italy.

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