Monatractides (Monatractides) stadleri (Walter, 1924)

Pesic, Vladimir, Jovanovic, Milica, Espiridiao Oliveira, Amalia, Pedro, Ana, Freira, Marvin & Morais, Maria Manuela, 2023, New records of water mites (Acari, Hydrachnidia) from Portugal revealed by DNA barcoding, with the description of Atractides marizae sp. nov., ZooKeys 1151, pp. 205-222 : 205

Monatractides (Monatractides) stadleri (Walter, 1924)

Material examined.

Portugal, Beja, Corgo da Ponte Quebrada , stream, 37.6961°N, 8.7122°W, 23.v.2022, leg. Jovanović, 1♂ (sequenced; Table 1 ), gnathosoma, palps and I-legs dissected and slide mounted (dorsal and ventral shield stored in Koenike fluid) .

Remarks.

The Portuguese specimen molecularly analyzed in this study matches the description of M. stadleri , a species widely distributed in the Mediterranean region and often very frequent in lowland, running waters ( Di Sabatino et al. 2010). The sequenced specimen clusters within BOLD:AEU1504, which includes two specimens of M. stadleri from Belgium and one specimen from Spain (identified as Torrenticola sp., deposited in Taxus Medio Ambiente, Spain). The p -distance between the latter BIN and its nearest neighbour, BOLD:AED3802, which includes specimens from Montenegro and Greece, is estimated at 8.98%. This suggests the need for taxonomic revision of the M. stadleri complex to identify possible undescribed cryptic species (see Pešić and Smit 2022 for a discussion).

Distribution.

Central, Western, and Southern Europe.