Taxonomic status of Ceratophysella denticulata (Bagnall, 1941), C. engadinensis (Gisin, 1949) and C. stercoraria Stach, 1963 (Collembola: Hypogastruridae) in the light of laboratory hybridisation studies

in Insect Systematics & Evolution
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Abstract

Laboratory hybridisation studies were performed of the springtail species Ceratophysella denticulata, C. engadinensis, C. stercoraria, C. mosquensis, C. impedita and Schaefferia willemi. The studies revealed that the species under consideration are reproductively isolated to different degrees. Rare, unilateral, introgressive hybridisation was detected exclusively between C. denticulata and C. engadinensis. Despite incomplete reproductive isolation these problematic species were recognised as “good” and closely related. The remaining species, including the problematic C. stercoraria, appeared to be completely reproductively isolated and were recognised as “good” and distantly related.

Taxonomic status of Ceratophysella denticulata (Bagnall, 1941), C. engadinensis (Gisin, 1949) and C. stercoraria Stach, 1963 (Collembola: Hypogastruridae) in the light of laboratory hybridisation studies

in Insect Systematics & Evolution

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