Gynandromorphism is a condition in which an organism exhibits both male and female characters simultaneously. This condition is the result of an abnormal process during embryonic development, and has been frequently reported in arthropods, especially crustaceans, insects, and arachnids. Here, we report a case of gynandromorphism in the brown dog tick, Rhipicephalus sanguineus s.l. in Colombia. The individual was collected from a domestic dog in the municipality of Samaná, Department of Caldas, in the inter-Andean Valley of the Magdalena River Basin of the country. This record is the first documented for this species in Colombia, and the fourth in America where this anomaly was previously reported in countries such as Brazil (two cases) and Mexico (one case).
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6 July 2022
A gynandromorph of the brown dog tick, Rhipicephalus sanguineus s.l. (Latreille, 1806) from Colombia
Mateo Ortíz-Giraldo,
Alexandra Cardona-Giraldo,
Daniela Velásqu Ez-Guarín,
Héctor E. Ramírez-Chaves,
Fredy A. Rivera-Páez
Systematic and Applied Acarology
Vol. 27 • No. 7
July 2022
Vol. 27 • No. 7
July 2022
Ixodidae
Morphological abnormality
Neotropical lineage
species complex