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{{Short description|Species of beetle}}
{{italictitle}}
{{Speciesbox
{{Taxobox
| name = ''Creophilus maxillosus'' | image = Creophilus maxillosus (Linné, 1758) (3411620571).jpg
| image = Creophilus.maxillosus.-.calwer.11.25.jpg | genus = Creophilus
| regnum = ]ia | species = maxillosus
| authority = (], ])
| phylum = ]a
| classis = ]a
| ordo = ]
| familia = ]
| subfamilia = ]
| genus = '']''
| species = '''''C. maxillosus '''''
| binomial = ''Creophilus maxillosus''
| binomial_authority = (], 1758)
}} }}


'''Creophilus ''maxillosus''''', the '''hairy rove beetle''', is a species of ].
⚫ '''Creophilus ''maxillosus''''' belongs to the order ] and is most commonly referred to as the hairy rove beetle. The ] is a large family, having almost 2,900 species in ]. This ] can be found in woods and wherever ] is found, usually from the spring to autumn months. These active beetles fly swiftly or run rapidly over the ground with the tip of the ] raised like a ]'s stinger.<ref>Bryan, Nora. "Hairy Rove Beetle." Talk about Wildlife. 1999. 12 Mar 2009 http://talkaboutwildlife.ca/profile/index.php?s=1419.</ref> Although a few are known to be ], most ] and their larvae prey upon ], other ], and small ]s.


==Physical Characteristics and Life Cycle== ==Physical characteristics and life cycle==
⚫ ]e of the hairy ] range from {{convert|20|–|25|mm}} long and are cylindrical and stout. The adult is a shiny black color and approximately {{convert|12|–|18|mm|abbr=on}} long.<ref>Byrd, J. H., & Castner, J. L. (Eds.). (2001). Insects of forensic importance. In Forensic entomologist: The utility of arthropods in legal investigations (''Phaenicia cuprina''). Florida: CRC Press.</ref> They are easily characterized by their ], which cover the first few ] segments. They have large eyes, and their ] close across each other in the front of the head and can inflict a painful stab if harassed or handled carelessly. Golden ] are located on ] angles of the head and slightly on the ] angle of the ]. These ] can be found on the last few abdominal segments and on ]. The hairy rove beetle has needle-like jaws that close across in front of head and large, prominent eyes. The ] are thick, beaded, and composed of 11 ].


⚫ The development of ] is around 4 days, ]e 14 days, and ] 16 days. The eggs are milky white colored, {{convert|2|to|3|mm|abbr=on}} long and hatch in about 3 days (depending on temperature). The ] lasts around 14 days. The pupae, which is around 11&nbsp;mm wide lasts 16 days. The estimation of the total duration of ''Creophilus maxillosus'' lasts 37 days.<ref>{{cite web |author1=Bourassa, S. |date=2004 |url=https://search.museums.ualberta.ca/g/2-5432 |title=Species Details ''Creophilus maxillosus'' |website=] Museums |publisher=E.H. Strickland Entomological Museum |access-date=November 10, 2020}}</ref>
⚫ ]e of the hairy ] range from 20–25&nbsp;mm long and are cylindrical and stout. The adult is a shiny black color and approximately 12–18&nbsp;mm long.<ref>Byrd, J. H., & Castner, J. L. (Eds.). (2001). Insects of forensic importance. In Forensic entomologist: The utility of arthropods in legal investigations (phaenicia cuprina). Florida: CRC Press.</ref> They are easily characterized by their ], which cover the first few ] segments. They have large eyes, and their ] close across each other in the front of the head and can inflict a painful stab if harassed or handled carelessly. Golden ] are located on ] angles of the head and slightly on the ] angle of the ]. These ] can be found on the last few abdominal segments and on ]. The hairy rove beetle has needle-like jaws that close across in front of head and large, prominent eyes. The ] are thick, beaded, and composed of 11 ].


⚫ ==Habitat and geography==
⚫ The development of ] is around 4 days, ]e 14 days, and ] 16 days. The eggs are milky white colored, 2 to 3&nbsp;mm long and hatch in about 3 days (depending on temperature). The ] lasts around 14 days. The pupae, which is around 11&nbsp;mm wide lasts 16 days. The estimation of the total duration of Creophilus maxillosus lasts 37 days.<ref>"Species Page: Creophilus Maxillosus." Entomology Collection. 2001. University of Alberta's E.H. Strickland Entomological Museum. 12 Mar 2009 http://www.entomology.ualberta.ca/searching_species_details.php?c=8&rnd=58024223&s=5432.</ref>
⚫ These beetles can be found in woods and wherever ] is found, usually from the spring to autumn months. These active beetles fly swiftly or run rapidly over the ground with the tip of the ] raised like a ]'s stinger.<ref>Bryan, Nora. "Hairy Rove Beetle." Talk about Wildlife. 1999. 12 Mar 2009 http://talkaboutwildlife.ca/profile/index.php?s=1419 {{Webarchive|url=https://web.archive.org/web/20110706204657/http://talkaboutwildlife.ca/profile/index.php?s=1419 |date=2011-07-06 }}.</ref>


⚫ Generally, ''C. maxillosus'' are found throughout the eastern U.S. in the fall and spring, but can also be found in the summer. They are usually in wooded habitats such as forest leaf litter, decaying plant material (including fruit), and under dead tree bark.<ref>Frank, J.H. and Michael Thomas. "Rove Beetles of Florida (Insecta: Coleoptera: Staphylinidae)." January 2010. http://entomology.ifas.ufl.edu/creatures/misc/beetles/fl_rove_beetles.htm</ref> They can also be found in carrion, dung, under stones or rocks, and in fresh water areas in washed-up brown algae.
⚫ ==Habitat and Geography==


⚫ ==Defense==
⚫ Generally, C. ''maxillosus'' are found throughout the eastern U.S in the fall and spring, but can also be found in the summer. They are usually in wooded habitats such as forest leaf litter, decaying plant material (including fruit), and under dead tree bark <ref>Frank, J.H.. "Rove Beetles of Florida, Staphylinidae (Insecta:." October 1999: 1. http://edis.ifas.ufl.edu/pdffiles/IN/IN27200.pdf</ref>. They can also be found in carrion, dung, under stones or rocks, and in fresh water areas in washed-up brown algae.
⚫ ''Creophilus maxillosus'' has ] defensive glands used to secrete a mixture of substances that act as an ] to predators. These glands are located beneath the abdominal ]. When threatened or disturbed, the beetle revolves its abdomen and touches abdominal tip to offender to wipe the glands. ] (''Formica exsectoides'') are a common offender and have portrayed that this defense takes place. The ] are shown to be repelled by the four major components of secretion (], iridodial, E-8-oxocitronellyl acetate, and dihydronepetalactone). ] is the main principal ingredient of ].<ref>"Chemical Defense of Rove Beetle." Journal of Chemical Ecology 9 (Jan 1983): 159-180.</ref>

⚫ ==Defense Mechanisms==

⚫ C. ''maxillosus'' has ] defensive glands used to secrete a mixture of substances that act as an ] to predators. These glands are located beneath the abdominal ]. When threatened or disturbed, the beetle revolves its abdomen and touches abdominal tip to offender to wipe the glands. ] (Formica ''exsectoides'') are a common offender and have portrayed that this defense takes place. The ] are shown to be repelled by the four major components of secretion (], iridodial, E-8-oxocitronellyl acetate, and dihydroneptalactone). ] is the main principal ingredient of ].<ref>"Chemical Defense of Rove Beetle." Journal of Chemical Ecology 9(Jan 1983): 159-180.</ref>


==Diet== ==Diet==
⚫ This particular species is ] in both the ]e and ] stages of life. The larvae and adults have long, curved ]s which are used for chewing. They feed on ] (from the hours after death to the advanced stages of ]), as well as on ], specifically hairy maggot blow flies that tend to be on dead animals.

] ].]]
⚫ This particular species is ] in both the ]e and ] stages of life. The larvae and adults have long, curved ] which are used for chewing. They feed on ] (hours after death all the way up to the advanced stages of ]), as well as on ] that tend to be on dead animals.


==Control== ==Control==
⚫ The hairy rove beetle is considered beneficial in the environment because it is a successful ] and ]. However, infestation of houses has been reported by this beetle. A reason why ''C. maxillosus'' infests houses is not known for certain, but a study of rearing this beetle in the laboratory has shown that adults like to lay eggs in fresh sand and not sand that is old or contaminated. To solve the problem of infestation certain pesticides have been found to affect the adults and larvae of this beetle and can be used to control their numbers.<ref>Greene, Gerald L. Rearing Techniques for ''Creophilus maxillosus'', a predator of fly larvae in cattle feedlots. Journal of Economic Entomology 89 (4): 848-851 Aug. 1996</ref> Atroban, a chemical pesticide composed of ] (0.05%), decreases the number of adults and larvae of the family ]. Short term reductions of this family were caused by a chemical named ] (0.05%). Both of these pesticides were tested on moist spots on poultry dung.<ref>Wills, Laura E.; Mullens, Bradley A.; Mandeville, J. David. Effects of pesticides on filth fly predators in caged layer poultry manure. Journal of Economic Entomology. 1990. 83: 2, 451-457.</ref>


==Forensics==
⚫ The hairy rove beetle is considered beneficial in the environment because it is a successful ] and ]. However, infestation of houses has been reported by this beetle. A reason why C. ''maxillosus'' infests houses is not known for certain, but a study of rearing this beetle in the laboratory has shown that adults like to lay eggs in fresh sand and not sand that is old or contaminated. To solve the problem of infestation certain pesticides have been found to affect the adults and larvae of this beetle and can be used to control their numbers.<ref>Greene, Gerald L. Rearing Techniques for Creophilus Maxillosus, a Predator of Fly Larvae in Cattle Feedlots. Journal of Economic Entomology 89 (4): 848-851 Aug. 1996</ref> Atroban, a chemical pesticide composed of ] (0.05%), decreases the number of adults and larvae of the family ]. Short term reductions of this family were caused by a chemical named ] (0.05%). Both of these pesticides were tested on moist spots on poultry dung.<ref>Wills, Laura E.; Mullens, Bradley A.; Mandeville, J. David. Effects of ] on filth fly predators in caged layer ] manure. Journal of Economic Entomology. 1990. 83: 2, 451-457.</ref>
⚫ ''Creophilus maxillosus'' is one of the many forensically important insect species commonly encountered during crime scene investigations. This species can be used in investigative ] to aid in establishing a time of colonization or ] (PMI), both of which usually prove helpful in general crime scene investigation. Hairy rove beetles are considered forensically important, however; their use is somewhat limited due to their transient nature and widespread distribution. ''Croephilus maxillosus'' frequency at crime scene investigations conducted in their natural habitat often disqualifies them from being an indicator of body relocation. ''Creophilus maxillosus'' forensic relevance, however, is proportionally associated with predation of ] larvae, which is one of the most important secondary predations encountered at crime scenes.

==Forensic Relevance==

⚫ Creophilus ''maxillosus'' is one of the many forensically important insect species commonly encountered during crime scene investigations. This species can be used in investigative ] to aid in establishing a time of colonization or ](PMI), both of which usually prove helpful in general crime scene investigation. Hairy rove beetles are considered forensically important, however; their use is somewhat limited due to their transient nature and widespread distribution. Croephilus maxillosus' frequency at crime scene investigations conducted in their natural habitat often disqualifies them from being an indicator of body relocation. Creophilus maxillosus' forensic relevance, however, is proportionally associated with predation of ] larvae, which is one of the most important secondary predations encountered at crime scenes.

⚫ Both larvae and adults of the ] Creophilus maxillosus feed on the ] remains of carrion as well as nutrient-packed diptera larvae. Their appearance in the 'common' faunal succession usually follows the first Diptera larvae colonization and continues throughout the later stages of decomposition. The presence of C. maxillosus on carrion is sometimes associated with a marked reduction or in some instances an unexplained absence of ] larvae. This predation causes an overall misrepresentation of the overall entomofaunical succession, and must be considered in some instances.<ref name = Matuszewski >Matuszewski S., Bajerlein D., Konwerski S., Szpila K. An initial study of insect succession and carrion decomposition in various forest habitats of Central Europe. Forensic Science International, Vol. 180. Issue 2. Pg. 61-69.</ref>

⚫ ==Forensic case studies==


⚫ Both larvae and adults of the ]y ''Creophilus maxillosus'' feed on the ] remains of carrion as well as nutrient-packed dipteran larvae. Their appearance in the 'common' faunal succession usually follows the first Diptera larvae colonization and continues throughout the later stages of decomposition. The presence of ''C. maxillosus'' on carrion is sometimes associated with a marked reduction or in some instances an unexplained absence of ] larvae. This predation causes an overall misrepresentation of the overall entomofaunical succession, and must be considered in some instances.<ref name = Matuszewski >Matuszewski S., Bajerlein D., Konwerski S., Szpila K. An initial study of insect succession and carrion decomposition in various forest habitats of Central Europe. Forensic Science International, Vol. 180. Issue 2. Pg. 61-69.</ref>
⚫ A study done in central Europe explores ] on near identical swine carcasses set out in a pine-oak forest, hornbeam-oak forest, and an alder forest in western ]. The results show that C. ''maxillosus'' adults begin to appear during the ‘late-bloating’, ‘early-active’ phase and were present up to the earlier stages of the ‘remains’ phase. On average, they were first seen after about 6 days of decomposition (range of 5–7 days of decomposition ) and the last C. ''maxillosus'' adults were observed on average on day 25 of decomposition (range of 14–38 days of decomposition ). C. ''maxillosus'' larvae began to appear after an average of 17 days of decomposition (range of 13–25 days of decomposition) and were present until day 40 of decomposition (range 34–50 days of decomposition).<ref name = Matuszewski/>


⚫ ===Case studies===
While in the nascent, but promising, stages of forensic entomology, studies such as this aid entomologists' understanding of faunal succession, and their results prove useful in many cases.
⚫ A study carried out in ] explored ] on near identical swine carcasses set out in a pine-oak forest, hornbeam-oak forest, and an alder forest in western ]. The results show that ''C. maxillosus'' adults begin to appear during the ‘late-bloating’, ‘early-active’ phase and were present up to the earlier stages of the ‘remains’ phase. On average, they were first seen after about 6 days of decomposition (range of 5–7 days of decomposition ) and the last ''C. maxillosus'' adults were observed on average on day 25 of decomposition (range of 14–38 days of decomposition ). ''C. maxillosus'' larvae began to appear after an average of 17 days of decomposition (range of 13–25 days of decomposition) and were present until day 40 of decomposition (range 34–50 days of decomposition).<ref name = Matuszewski/>


==References== ==References==
{{Reflist}}
<references/>


{{Taxonbar|from=Q844763}}
{{DEFAULTSORT:Creophilus Maxillosus}}
⚫ ]
⚫ ]


⚫ ]
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⚫ ]
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Latest revision as of 13:18, 4 November 2024

Species of beetle

Creophilus maxillosus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Staphylinidae
Genus: Creophilus
Species: C. maxillosus
Binomial name
Creophilus maxillosus
(Linnaeus, 1758)

Creophilus maxillosus, the hairy rove beetle, is a species of rove beetle.

Physical characteristics and life cycle

Larvae of the hairy rove beetle range from 20–25 millimetres (0.79–0.98 in) long and are cylindrical and stout. The adult is a shiny black color and approximately 12–18 mm (0.47–0.71 in) long. They are easily characterized by their elytra, which cover the first few abdominal segments. They have large eyes, and their mandibles close across each other in the front of the head and can inflict a painful stab if harassed or handled carelessly. Golden setae are located on posterior angles of the head and slightly on the anterior angle of the pronotum. These setae can be found on the last few abdominal segments and on elytra. The hairy rove beetle has needle-like jaws that close across in front of head and large, prominent eyes. The antennae are thick, beaded, and composed of 11 segments.

The development of eggs is around 4 days, larvae 14 days, and pupae 16 days. The eggs are milky white colored, 2 to 3 mm (0.079 to 0.118 in) long and hatch in about 3 days (depending on temperature). The larval stage lasts around 14 days. The pupae, which is around 11 mm wide lasts 16 days. The estimation of the total duration of Creophilus maxillosus lasts 37 days.

Habitat and geography

These beetles can be found in woods and wherever carrion is found, usually from the spring to autumn months. These active beetles fly swiftly or run rapidly over the ground with the tip of the abdomen raised like a scorpion's stinger.

Generally, C. maxillosus are found throughout the eastern U.S. in the fall and spring, but can also be found in the summer. They are usually in wooded habitats such as forest leaf litter, decaying plant material (including fruit), and under dead tree bark. They can also be found in carrion, dung, under stones or rocks, and in fresh water areas in washed-up brown algae.

Defense

Creophilus maxillosus has abdominal defensive glands used to secrete a mixture of substances that act as an irritant to predators. These glands are located beneath the abdominal tergites. When threatened or disturbed, the beetle revolves its abdomen and touches abdominal tip to offender to wipe the glands. Ants (Formica exsectoides) are a common offender and have portrayed that this defense takes place. The ants are shown to be repelled by the four major components of secretion (isoamyl acetate, iridodial, E-8-oxocitronellyl acetate, and dihydronepetalactone). Dihydroneptalactone is the main principal ingredient of chemical defense.

Diet

This particular species is predacious in both the larvae and adult stages of life. The larvae and adults have long, curved mandibles which are used for chewing. They feed on carcasses (from the hours after death to the advanced stages of decomposition), as well as on maggot, specifically hairy maggot blow flies that tend to be on dead animals.

Hairy rove beetles at four days and larva at seven days under rabbit carrion.

Control

The hairy rove beetle is considered beneficial in the environment because it is a successful scavenger and predator. However, infestation of houses has been reported by this beetle. A reason why C. maxillosus infests houses is not known for certain, but a study of rearing this beetle in the laboratory has shown that adults like to lay eggs in fresh sand and not sand that is old or contaminated. To solve the problem of infestation certain pesticides have been found to affect the adults and larvae of this beetle and can be used to control their numbers. Atroban, a chemical pesticide composed of permethrin (0.05%), decreases the number of adults and larvae of the family Staphylinidae. Short term reductions of this family were caused by a chemical named dimethoate (0.05%). Both of these pesticides were tested on moist spots on poultry dung.

Forensics

Creophilus maxillosus is one of the many forensically important insect species commonly encountered during crime scene investigations. This species can be used in investigative forensic entomology to aid in establishing a time of colonization or post mortem interval (PMI), both of which usually prove helpful in general crime scene investigation. Hairy rove beetles are considered forensically important, however; their use is somewhat limited due to their transient nature and widespread distribution. Croephilus maxillosus frequency at crime scene investigations conducted in their natural habitat often disqualifies them from being an indicator of body relocation. Creophilus maxillosus forensic relevance, however, is proportionally associated with predation of Diptera larvae, which is one of the most important secondary predations encountered at crime scenes.

Both larvae and adults of the predatory Creophilus maxillosus feed on the organic remains of carrion as well as nutrient-packed dipteran larvae. Their appearance in the 'common' faunal succession usually follows the first Diptera larvae colonization and continues throughout the later stages of decomposition. The presence of C. maxillosus on carrion is sometimes associated with a marked reduction or in some instances an unexplained absence of fly larvae. This predation causes an overall misrepresentation of the overall entomofaunical succession, and must be considered in some instances.

Case studies

A study carried out in Central Europe explored insect succession on near identical swine carcasses set out in a pine-oak forest, hornbeam-oak forest, and an alder forest in western Poland. The results show that C. maxillosus adults begin to appear during the ‘late-bloating’, ‘early-active’ phase and were present up to the earlier stages of the ‘remains’ phase. On average, they were first seen after about 6 days of decomposition (range of 5–7 days of decomposition ) and the last C. maxillosus adults were observed on average on day 25 of decomposition (range of 14–38 days of decomposition ). C. maxillosus larvae began to appear after an average of 17 days of decomposition (range of 13–25 days of decomposition) and were present until day 40 of decomposition (range 34–50 days of decomposition).

References

  1. Byrd, J. H., & Castner, J. L. (Eds.). (2001). Insects of forensic importance. In Forensic entomologist: The utility of arthropods in legal investigations (Phaenicia cuprina). Florida: CRC Press.
  2. Bourassa, S. (2004). "Species Details Creophilus maxillosus". University of Alberta Museums. E.H. Strickland Entomological Museum. Retrieved November 10, 2020.
  3. Bryan, Nora. "Hairy Rove Beetle." Talk about Wildlife. 1999. 12 Mar 2009 http://talkaboutwildlife.ca/profile/index.php?s=1419 Archived 2011-07-06 at the Wayback Machine.
  4. Frank, J.H. and Michael Thomas. "Rove Beetles of Florida (Insecta: Coleoptera: Staphylinidae)." January 2010. http://entomology.ifas.ufl.edu/creatures/misc/beetles/fl_rove_beetles.htm
  5. "Chemical Defense of Rove Beetle." Journal of Chemical Ecology 9 (Jan 1983): 159-180.
  6. Greene, Gerald L. Rearing Techniques for Creophilus maxillosus, a predator of fly larvae in cattle feedlots. Journal of Economic Entomology 89 (4): 848-851 Aug. 1996
  7. Wills, Laura E.; Mullens, Bradley A.; Mandeville, J. David. Effects of pesticides on filth fly predators in caged layer poultry manure. Journal of Economic Entomology. 1990. 83: 2, 451-457.
  8. ^ Matuszewski S., Bajerlein D., Konwerski S., Szpila K. An initial study of insect succession and carrion decomposition in various forest habitats of Central Europe. Forensic Science International, Vol. 180. Issue 2. Pg. 61-69.
Taxon identifiers
Creophilus maxillosus
Staphylinus maxillosus
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