Effects of Different Temperatures on the Development of <i>Dermestes Frischii</i> and <i>Dermestes Undulatus</i> (Coleoptera, Dermestidae): Comparison Between Species

Lambiase, Simonetta; Murgia, Giulia; Sacchi, Roberto; Ghitti, Michele; Lucia, Valeria di

doi:10.1111/1556-4029.13580

Cited by 9 publications

(5 citation statements)

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“…In the study of Dermestes undulatus Brahm, 1790 (Coleoptera: Dermestidae) and D . frischii Kugelann, 1792 (Coleoptera: Dermestidae), each larva was kept in a different jar [ 10 ]. In studies on the development of Thanatophilus micans (Fabricius 1794) and T .…”

Section: Introductionmentioning

confidence: 99%

Insect rearing protocols in forensic entomology: Benefits from collective rearing of larvae in a carrion beetle Necrodes littoralis L. (Silphidae)

Gruszka

Matuszewski

2021

PLoS ONE

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Forensic entomologists frequently use a developmental method to estimate a post-mortem interval (PMI). Such estimates are based usually on the blow fly larvae or puparia. Data on their development is obtained by rearing them in colonies. In the case of beetles, which can be also useful for PMI estimation, development data is frequently collected by rearing them individually. However, some carrion beetles are gregarious, for instance, Necrodes littoralis (Linnaeus, 1758) (Silphidae). We compared mortality, rate of development and body size of emerged adult beetles reared individually and in aggregations. Mortality was much higher for beetles reared individually, particularly at low temperatures. The rearing protocol affected the time of immature development and the size of adult insects. Individually reared specimens developed much longer at 16°C, whereas at 20°C and 26°C development times of individually reared beetles were slightly shorter. Significant differences in the body size were observed only at 16°C; beetles that developed in aggregations were larger at this temperature. These findings demonstrate that aggregating is particularly beneficial for larvae of N. littoralis at low temperatures, where it largely reduces mortality and facilitates growth. Moreover, these results indicate that in forensic entomology the protocol of individual rearing is unsuitable for gregarious beetles, as it produces reference developmental data of low quality.

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Section: Introductionmentioning

confidence: 99%

Insect rearing protocols in forensic entomology: Benefits from collective rearing of larvae in a carrion beetle Necrodes littoralis L. (Silphidae)

Gruszka

Matuszewski

2021

PLoS ONE

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“…In fact, in this case, active larval stage of Dermestes frischii ( Krugelann ) indicated a longer PMI min of no less than 30 days. Based on developmental data [ 12 ], D. frischii needs at least 29.7 days to get pre-pupa larval stage at 23 °C as a complete life cycle of this Coleoptera has been observed in 111–115 days at 20 °C [ 13 ]. Case 2 …”

Section: Introductionmentioning

confidence: 99%

Decomposition pattern and insect colonization in two cases of suicide by hanging

Bugelli

Focardi

Pinchi

et al. 2018

Forensic Sciences Research

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Hanging is one of the most common methods of suicide worldwide. Despite the high incidence, only a little knowledge about the pattern of cadaver colonization by insects on hanging corpse is available. Different types of hanging can alter the body decomposition process as well as the pattern and rate of insect colonization. Two case studies where the hanging occurred with a similar postmortem interval of 34 days are described. The two bodies showed different patterns of insect colonization and decomposition scored using the Total Body Score (TBS) and the TBS for hanging (TBShang). The first case was about the body of a 24-years-old male, with mummification of the unclothed upper anatomical parts. A TBS of 14 and a TBShang of 18 were assigned. The second body, belonging to a 15-years-old male, was found pre-skeletonized lying on the ground with the skull disarticulated. A TBS of 31 and a TBShang of 32 were assigned. Average temperatures of (21.5 ± 2.5) °C for the first body and (25.1 ± 2.7) °C for the second body were recorded in the 34 days preceding the bodies’ discovery for a total of 731 and 853 Accumulated Degree Days (ADD) respectively. According to previous studies, the different decomposition patterns were related to temperatures of exposition and to the diversity of arthropod community found on the bodies because of the different types of hanging: totally suspended vs. in contact with the soil. The limited insect activity caused by hanging explains the delay in decomposition of hanging bodies in which mummification can take place, especially on the upper body parts. In vertical body position, the body fluids accumulated in the lower body parts accelerating the desiccation of soft tissues on the upper parts. The effect of gravity can also explain the decrease of internal maggot mass as larvae easily fall from the hanging body to the drip zones below where they are unable to recolonize the body if totally suspended. Furthermore, in a hanging body a greater surface is exposed to wind and sun with a quicker skin drying preventing the additional Diptera colonization. This paper shows the weaknesses of scoring scales and regression models developed to predict ADD when irregular decomposition and mummification have not taken into account.

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“…Dermestes frischii is a holometabolous insect, and goes through four stages of development: egg, larva, pupa, and adult. Previous studies have systematically studied the growth and developmental patterns of this species using morphology, providing important indicators for pest control and PMI estimation (Martín-Vega et al 2017; Lambiase et al 2018;Hu et al 2023). As a storage pest perspective, the differential expression of genes at different developmental stages is the molecular basis for insect growth and development.…”

Section: Introductionmentioning

confidence: 99%

Full-length transcriptome-referenced analysis reveals developmental and olfactory regulatory genes in Dermestes frischii

Hu,

Li,

et al. 2024

Preprint

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Dermestes frischii Kugelann, 1792 is a storage pest worldwide, and is important for estimating the postmortem interval in forensic entomology. However, because of the lack of transcriptome and genome resources, population genetics and biological control studies on D. frischii have been hindered. Here, single-molecule real-time sequencing and next-generation sequencing were combined to generate the full-length transcriptome of the five developmental stages of D. frischii, namely egg, young larva, mature larva, pupa, and adult. A total of 41665 full-length non-chimeric sequences and 59385 non-redundant transcripts were generated, of which 42756 were annotated in public databases. By comparing the transcripts from adjacent developmental stages, 24376, 11802, 20726, and 13262 differentially expressed genes were identified, respectively. Using the weighted gene co-expression network analysis, gene co-expression modules related to the five developmental stages were constructed and screened, and the genes in these modules subjected to Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. The expression patterns of the DEGs related to olfaction and insect hormone biosynthesis were also explored. Transcription of most odorant binding proteins was up-regulated in the adult stage, suggesting they are important for foraging in adults. Many genes encoding for the ecdysone-inducible protein were up-regulated in the pupal stage. The results of the qRT-PCR were consistent with the RNA-seq results. This is the first full-length transcriptome sequencing of dermestids, and the data obtained here is vital for understanding the stage-specific development and olfactory system of D. frischii, providing valuable resources for storage pest and forensic research.

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Effects of Different Temperatures on the Development of Dermestes Frischii and Dermestes Undulatus (Coleoptera, Dermestidae): Comparison Between Species

Cited by 9 publications

References 10 publications

Insect rearing protocols in forensic entomology: Benefits from collective rearing of larvae in a carrion beetle Necrodes littoralis L. (Silphidae)

Insect rearing protocols in forensic entomology: Benefits from collective rearing of larvae in a carrion beetle Necrodes littoralis L. (Silphidae)

Decomposition pattern and insect colonization in two cases of suicide by hanging

Full-length transcriptome-referenced analysis reveals developmental and olfactory regulatory genes in Dermestes frischii

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