Forensic Entomology
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| crop | This is where maggots store their undigested food | This is located near the anterior end of a maggot and is not yet full in the 1st instar stage |
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| 1st instar | This maggot stage has two spiracle slits in total | This sheds it skin (molts) to become the 2nd instar maggot | This maggot stage is usually finished within 1.5 - 2 days from death | This is the smallest maggot stage
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| 2nd instar | The crop is most clearly visible in this maggot stage | This maggot stage has four spiracle slits in total | This sheds it skin (molts) to become the 3rd instar maggot | This maggot stage is usually finished within 2.5 - 3 days from death
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| 3rd instar | The crop is covered by fatty covering in this maggot stage | The maggot skin in this stage hardens, darkens, and retracts to become to pupa shell | This maggot stage has six spiracle slits in total | This maggot stage is usually finished within 7.5 - 8 days from death
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| spiracle slits | These are located on the maggot’s posterior end and used to breathe | The number of these can help determine the instar stage of a maggot |
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| posterior | This end of a maggot contain the spiracle slits | This is the end of the maggot that they breathe from | This is the end of the maggot that is thicker and rounder | This is the “butt” end of a maggot
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| anterior | This is the end of the maggot with their mouth | This is the end of the maggot that burrows into flesh when consuming it | This is the end of the maggot that is thinner and more pointed |
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| mouth hooks | These are used to help maggot dig into the flesh they are consuming | These are located at the anterior end of the maggot |
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| eggs | This is the first stage of the blow fly life cycle | About 50 of these are laid at a time by blow flies that reach a body |
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| blow fly | This is usually the first insect to reach a body after death, due to their ability to smell death within minutes from over a mile away | These insects are shiny metallic colors in their adult form, such as green, blue, and bronze | Putrescine and cadaverine gases attract this insect to the body very soon after death |
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| flesh fly | This insect lays live larvae instead of eggs, meaning it is ovoviviparous | This insect can be differentiated from a house fly because of the checkerboard pattern on its abdomen |
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| house fly | Seeing this fly around a body could indicate presence of urine and feces, and this possibly abuse and neglect of the deceased |
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| hide beetle | This insect is a primary player in the dry decay stage because it is so adept at cleaning bones of dried flesh |
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| oviposition | This is the term for egg-laying | Blow flies do this action within 1 hour of reaching a body, as long as conditions are good | This will not occur in rain, at night, or at extreme temperatures |
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| body farm | This is the location of a research facility in which researchers studies decaying corpses in a wide variety of conditions | This helped get Forensic Entomology accepted as usable evidence in court |
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| hister beetle | This insect is also known as the clown beetle | This insect arrives partway through bodily decay and feeds primarily on other insects at the body |
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| coffin fly | This insect is as tiny as a fruit fly and adept at getting into hard to reach places | Presence of this insect only indicates the body was originally placed someone that most other insects could not reach |
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| colonization | This is the term for when insects arrive at a body and begin aiding in the decomposition process | This term for the insect arrival process can be delayed by the body being wrapped or inaccessible |
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| proboscis | This straw-like mouth part is used by flies such as the blow fly to suck up liquids for food | Insects with this mouthpart are likely to arrive in the early stages of decay when the body is moist |
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| sharp mouthparts | Insects with this kind of mouthpart are likely to arrive in the later stages of decay when the body is drier | Hide beetles and carrion beetles have this feature that make it easier for them to feed on dry decay |
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| pupa | This is the second to last stage of the blow fly life cycle | In order to prepare for this stage, blow fly maggots will stop eating, empty their crop, and move to a dark, dry area | This blow fly life cycle stage can take a few weeks depending on conditions |
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| medico-legal | This is one of three classifications of forensic entomology, along with Urban and Stored Product forensic entomology | This is type of forensic entomology that deals with how entomology can be used to in criminal and civil cases to solve death, abuse, and neglect cases |
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| species succession | This is the term for the process by which different kinds of insects will arrive at a corpse at different times, one after the other | If a body has been dead for a while, this is a reliable way to use insect evidence to determine how long it has been dead |
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| maggot milkshake | This can be made with evidence from the scene to determine if the body was exposed to any drugs, poisons, or toxins |
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| larval development | This is the method for finding PMI that relies on analyzing the stage of certain insects, like the blowfly, which have a very predicable life cycle. |
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