“…Leptus larvae are ectoparasites of a wide range of arthropods: arachnids (Acari, Araneae, Opiliones, Pseudoscorpiones, Scorpiones) (Baker & Selden 1997), Mecoptera (Seeman & Palmer 2011), Heteroptera (Pereira et al 2012;coracini & SamuelS 2002), social insects (FletcHtmann 1980;teixeira 2011) (vieira et al 2011). In Brazil, Leptus was reported parasitizing predatory and phytophagous bugs in Minas Gerais (Pereira et al 2012), honeybees in São Paulo (teixeira 2011), and Sarcophaga fly Tricharaea (Sarothromyia) femoralis (Schiner) (Diptera: Sarcophagidae) in Itaipu beach, Maricá, Rio de Janeiro (Pinto et al 2014). During October-December 2013 several specimens of T. importunus were collected by insect hand net in Vacaria Velha, an ecotone area between secondary Atlantic Forest and meadow, next to a pond (23°03'47" S, 043°59'16" W), Marambaia Island, Mangaratiba county, Rio de Janeiro, southeastern Brazil (Collection Authorization MMA-ICMBio-SISBIO nº 33382-1) (Figure 1).…”