Cephenomyia trompe (Modéer, 1786)

Handeland, Kjell, Tunheim, Ketil, Madslien, Knut, Vikøren, Turid, Viljugrein, Hildegunn, Mossing, Anders, Børve, Ivar, Strand, Olav & Hamnes, Inger Sofie, 2021, High winter loads of Oestrid larvae and Elaphostrongylus rangiferi are associated with emaciation in wild reindeer calves, International Journal for Parasitology: Parasites and Wildlife 15, pp. 214-224 : 216

2.3.1. Cephenomyia trompe and Hypoderma tarandi

The nasal cavities of calves hunted in the autumns were exposed and the nasal mucosa inspected for the presence of C. trompe L 1 larvae through a low power (5x) magnifying glass and the number of L 1 larvae was counted semi-quantitatively (An accurate count would have required a complete and thorough examination of all nasal structures). The number of C. trompe larvae found in calves killed in the spring was counted after exposing the animals’ pharynx. Thereafter, the head was removed, cloven and the nose cavities inspected for larvae. For the calves examined in the spring of 2016, an additional washing of the nasal cavity and pharynx followed by filtering through a fine-mesh sieve was performed, to identify larvae overlooked on direct inspection. In some animals, C. trompe larvae were difficult to detect (and the number obviously underestimated) due to the presence of ruminal contents (following agonal regurgitation). The number of H. tarandi larvae in calves killed in the spring was counted in the visceral side of the skin.