Ischnocera
Guides
Brueelia
Brueelia is a hyperdiverse genus of chewing lice in the family Philopteridae, forming the core of the 'Brueelia-complex'—one of the largest and most heterogeneous groups of avian lice. Over 300 species have been described, with estimates suggesting more than 1,000 species may exist from African hosts alone. The genus is predominantly associated with Passeriformes (perching birds), with most species exhibiting high host specificity; more than 85% of described species are known from a single host bird species.
Chelopistes meleagridis
Large Turkey Louse
Chelopistes meleagridis is a chewing louse (suborder Ischnocera, family Philopteridae) that parasitizes domestic turkeys (Meleagris gallopavo). Known as the Large Turkey Louse, this ectoparasite has been studied extensively in laboratory settings to understand its reproductive biology and developmental requirements. The species exhibits high fecundity relative to other Ischnocera, with females producing approximately 2-3 eggs daily and 26-29 eggs over their lifetime. Development from egg to adult requires about 29 days under optimal conditions, but successful maturation depends critically on access to host skin fragments in addition to feathers.
Craspedorrhynchus
Craspedorrhynchus is a genus of chewing lice in the family Philopteridae (suborder Ischnocera). Species in this genus are ectoparasites of birds of prey, particularly eagles (Accipitriformes). The genus was established by Kéler in 1938. At least one species, C. naevius, has been documented infesting the Lesser Spotted Eagle (Clanga pomarina) in Türkiye.
Degeeriella
Degeeriella is a genus of ischnoceran feather lice in the family Philopteridae. Species in this genus are ectoparasites of birds of prey, with documented host associations including vultures and related Accipitriformes. The genus is characterized by distinctive genitalia with penial sclerite and typically more than four sternocentral setae on abdominal segments III and IV. Phylogenetic analyses indicate that Degeeriella is paraphyletic, with some species showing closer relationships to other genera than to congeneric species.