Original paper

Insect Fauna and Degradation Activity of Thanatophilus species on Carrion in Southern Italy (Coleoptera: Silphidae)

[Insektenfauna und Abbauwirkung von Aaskäfer-Arten der Gattung Thanatophilus auf Tierleichen in Süditalien (Coleoptera: Silphidae)]

Bonacci, T; Greco, S; Brandmayr, T Z

Entomologia Generalis Volume 33 Number 1-2 (2011), p. 63 - 70

26 references

published: Jun 30, 2011

DOI: 10.1127/entom.gen/33/2011/63

BibTeX file

ArtNo. ESP146003301004, Price: 9.90 €

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Abstract

Necrophagous insects (Diptera, Coleoptera, Hymenoptera) can colonize the decomposing corps and everyone play an important ecological role in forensic investigations. The aim is to identify seasonal succession of major arthropod taxa of forensic importance in a rural area in southern Italy, during winter 2008. The principal fly invaders were Calliphora vicina Robineau-Desvoidy 1830, C vomitoria (L), Lucilia caesar (L), L sericata (Meigen 1826), Sarcophaga (Meigen 1826) spp, Musca domestica (L) and Muscina stabulans (Fallen 1817). The beetle species collected in winter belonged to Silphidae (Thanatophilus rugosus and T sinuatus), Dermestidae (Dermestes maculatus (De Geer 1774), Cleridae (Necrobia ruf pes (De Geer 1775), and Histeridae (Margarinotus (Ptomister) brunneus Fabricius 1775 = cadaverinus). It is well known that the successional pattern of the carrion insects is quite unique and that Diptera Calliphoridae are usually the most important necrophagous colonizers but in particular environmental conditions, other invaders can replace them. This is a report on the carrion-frequenting insects in Calabria (southern Italy). A case is described in which maggots (Diptera: Calliphoridae) were not able to consume the pig bodies during winter months. It was observed that both Silphidae species, Thanatophilus rugosus (L) and T sinuatus (Fabricius 1775), were the major vector in the breakdown of the carcasses.

Résumé

Gli insetti necrofagi che colonizzano un corpo in decomposizione (Diptera, Coleoptera, Hymenoptera) svolgono un ruolo ecologico fondamentale in entomologia forense. L ’obiettivo del nostro lavoro è quello di individuare la successione stagionale dei taxa di artropodi che ri vestono, nella nostra regione, importanza nell’ambito delle indagini forensi. I principali ditteri sono stati Calliphora vicina Robineau-Desvoidy 1830, C vomitoria (L), Lucilia caesar (L), L sericata (Meigen 1826), Sarcophaga (Meigen 1826) spp, Musca domestica (L) e Muscina stabulans (Fallen 1817). I Coleotteri raccolti appartengono alle famiglie Silphidae (Thanatophilus rugosus and T sinuatus), Dermestidae (Dermestes maculatus (De Geer 1774), Cleridae (Necrobia ruf pes (De Geer 1775), e Histeridae (Margarinotus (Ptomister) brunneus Fabricius 1775 = cadaverinus). Generalmente i ditteri Calliphoridae sono i primi a colonizzare un corpo esposto, ma in particolari condizioni ambientali altri colonizzatori possono sostituirli.

Keywords

Calliphora vicina RobineauDesvoidy 1830C vomitoria (Linnaeus 1758)arthropod faunacarrion colonizationdecomposition stagesscavengers