title: Investigating the potential of fluorescent fingerprint powders as a marker for blow fly larvae (Diptera: calliphoridae).
abstract: Four fluorescent fingerprint powders (RedWop(™) , GreenWop(™) , Basic Yellow(™) , and Yellow Powder(™) ) were evaluated as a marker for blow fly larvae. Administration methods included ingestion (high vs. low concentration) or topical. Ingestion of high concentrations of Basic Yellow(™) and RedWop(™) caused higher larval mortality. Basic Yellow(™) delayed development and adult emergence while RedWop(™) and Yellow Powder(™) had a significant effect on particular stages of development, however, emergence time was not altered. Optimal administration is through ingestion at low concentration levels (<10%) or topically, with GreenWop(™) demonstrating minimal adverse effects. Optimum wavelength for discrimination between powders was 450 nm. This research can aid in investigative training to increase visibility of larval and pupal blow flies. It can also be used in entomological studies to differentiate between larval blow flies (or other dipteran) species or individuals to further understand complex interactions and behavior during larval development.
authors.affiliation: Department of Sciences, John Jay College of Criminal Justice, City University of New York, 524 West 59th St, New York, NY, 10019, U.S.A.
authors.forename: Jennifer Y
authors.initials: JY
authors.lastname: Rosati
authors.forename: Scott D
authors.initials: SD
authors.lastname: Robinson
authors.forename: Richard
authors.initials: R
authors.lastname: Devine
mesh_terms: D000818:Animals; D004396:Coloring Agents; D004175:Diptera; D005453:Fluorescence; D007814:Larva; D011208:Powders
chemical_list: D004396:Coloring Agents; D011208:Powders
keywords: alternative light source; biomarker; blow flies; crime scene investigative training; fluorescent fingerprint powder; forensic entomology