Instar Determination of the Neotropical Beetle Oxelytrum discicolle (Coleoptera: Silphidae)

The carrion beetle Oxelytrum discicolle (Brullé, 1840) has forensic importance in the Neotropical region. The age of their larvae can provide important information to estimate the minimum postmortem interval of the corpse. This study was designed to determine the larval stages of this species, using...

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Bibliographic Details
Published in:Journal of medical entomology 2010-09, Vol.47 (5), p.723-726
Main Authors: Velásquez, Yelitza, Viloria, Angel L
Format: Article
Language:English
Subjects:
Age
Animals
Biological and medical sciences
Carrion
Coleoptera
Coleoptera - growth & development
Entomology
forensic entomology
Forensic medicine
Forensic science
Forensic Sciences
Fundamental and applied biological sciences. Psychology
insect morphology
Insecta
instars
Invertebrates
Larva - growth & development
larvae
Medical sciences
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
MORPHOLOGY, SYSTEMATICS, EVOLUTION
Oxelytrum discicolle
Public health. Hygiene
Public health. Hygiene-occupational medicine
Silphidae
Vectors. Intermediate hosts
Venezuela
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Summary:The carrion beetle Oxelytrum discicolle (Brullé, 1840) has forensic importance in the Neotropical region. The age of their larvae can provide important information to estimate the minimum postmortem interval of the corpse. This study was designed to determine the larval stages of this species, using three morphological measurements, as follows: distance between dorsal stemmata, pronotal width, and total body length. Three instars were identified. Distance between dorsal stemmata and pronotal width were good discriminating variables to determine instars, whereas total length was widely variable. For each instar, intervals of three morphological measures are given.
ISSN:0022-2585
1938-2928
0022-2585
DOI:10.1603/ME09058