Larval morphology of the avian parasitic genus Passeromyia: playing hide and seek with a parastomal bar

Research output: Contribution to journalJournal articleResearchpeer-review

  • Kinga Walczak
  • Krzysztof Szpila
  • Leanne Nelson
  • Pape, Thomas
  • Martin J. R. Hall
  • Fernanda Alves
  • Andrzej Grzywacz

The enigmatic larvae of the Old World genus Passeromyia Rodhain & Villeneuve, 1915 (Diptera: Muscidae) inhabit the nests of birds as saprophages or as haematophagous agents of myiasis among nestlings. Using light microscopy, confocal laser scanning microscopy and scanning electron microscopy, we provide the first morphological descriptions of the first, second and third instar of P. longicornis (Macquart, 1851) (Diptera: Muscidae), the first and third instar of P. indecora (Walker, 1858) (Diptera: Muscidae), and we revise the larval morphology of P. heterochaeta (Villenueve, 1915) (Diptera: Muscidae) and P. steini Pont, 1970 (Diptera: Muscidae). We provide a key to the third instar of examined species (excluding P. steini and P. veitchi Bezzi, 1928 (Diptera: Muscidae)). Examination of the cephaloskeleton revealed paired rod-like sclerites, named 'rami', between the lateral arms of the intermediate sclerite in the second and third instar larva. We reveal parastomal bars fused apically with the intermediate sclerite, the absence of which has so far been considered as apomorphic for second and third instar muscid larvae. Examination of additional material suggests that modified parastomal bars are not exclusive features of Passeromyia but occur widespread in the Muscidae, and rami may occur widespread in the Cyclorrhapha.

Original languageEnglish
JournalMedical and Veterinary Entomology
Number of pages13
Publication statusE-pub ahead of print - 5 Aug 2022

    Research areas

  • confocal laser scanning microscopy, Diptera, light microscopy, Muscidae, myiasis, scanning electron microscopy, 3RD INSTAR LARVAE, DIPTERA MUSCIDAE, FORENSIC IMPORTANCE, PREIMAGINAL STAGES, IMMATURE STAGES

ID: 317443931