Rediscovery of Forcipomyia (Trichohelea) opilionivora (Lane, 1947) (Diptera, Ceratopogonidae) in Brazil after 75 years

The species Forcipomyia (Trichohelea) opilionivora (Lane, 1947) (Diptera, Ceratopogonidae) was rediscovered in the state of Rio de Janeiro, Brazil, 75 years after its original description. This study aimed to investigate ectoparasitic relationship between F. (T.) and host document occurrence, which recorded serendipitously during collection Opiliones (harvestmen) specimens Parque Nacional do Itatiaia Brazil. After collection, both were subjected photographic documentation preserved for further examination. presents first record a harvestman, shedding light on poorly studied interaction. specimen identified as female Holcobunus nigripalpis Roewer, 1910 (Opiliones, Sclerosomatidae), gagrelline commonlyfound Atlantic Forest southeastern Previous records ectoparasitism Ceratopogonidae harvestmen limited family level (Sclerosomatidae species, specifically Gagrellinae or Leiobuninae). However, no specific had been until now. rediscovery opilionivora, along with identification host, addresses significant gap our knowledge regarding biology distribution this provides valuable insights into intricate relationships biting midges arachnids. emphasizes need investigations these underscores importance documenting studying lesser-known interactions within ecosystems.