By D D Colwell, M J Hall, P J Scholl
This ebook offers a entire dialogue on present wisdom at the biology of oestrid flies. It contains 14 chapters, each one devoted to the dialogue of the oestrid flies' systematics, morphology, host-parasite relationships, and lifestyles heritage. an in depth survey of every genus is defined. particular modifications among the flies' grownup and larval phases are emphasised. Such discussions can be of serious importance to researchers in entomology, parasitology, biology and veterinary technology. on hand In Print
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Extra resources for The oestrid flies: biology, host-parasite relationships, impact and management
Pecorum and Gasterophilus ternicinctus show the plesiomorphic ventricular larval position, while larvae of Gasterophilus nasalis and Gasterophilus nigricornis have their main development in the duodenum and those of Gasterophilus inermis in the lower part of the colon (Zumpt, 1965; Grunin, 1969). Further resolution of species-level phylogeny within Gasterophilus is needed to evaluate this possible evolution of niche partitioning. In the Oestrinae, there is a shift from a pharyngeal position in the basal genera Cephenemyia, Pharyngomyia, Pharyngobolus and Tracheomyia to a position in the nasal passages and frontal sinuses in the clade Kirkioestrus–Cephalopina–Gedoelstia– Rhinoestrus–Oestrus (Zumpt, 1965; Grunin, 1966).
Macropi as the sole survivor. Ancestral Habitat With the risk of moving on to thin ice, it is interesting to look at the ecological requirements of the various bot fly groups, even if only sparse information is available. Dermatobia hominis has a broad host menu, although apparently mainly non-native, yet in spite of potential hosts being available practically everywhere, the species is restricted to humid, or at least evergreen, tropical forests and does not occur north of Mexico (except as introduced larvae).
The calliphorid and possible chrysomyine affinities of this fossil, however, were argued from rather circumstantial evidence. Papavero (1977, p. 210) interpreted the basal split of subfamily Oestrinae (his Oestridae) as a Laurasia–Gondwana vicariance event, dating the origin of the nasopharyngeal bot flies (Oestrinae) to ‘between the late Jurassic and early Cretaceous’. Papavero’s combination of phylogenetic and distributional information may have more subtle interpretations, and Gondwana distributions have not yet been documented within the Calyptratae.