Stigmaeopsis nanjingensis (Ma & Yuan, 1980)

AugerK, Philippe, K, Denise Navia & MigeonK, Alain, 2023, Three new alien spider mites (Prostigmata, Tetranychidae) from south-eastern France, Acarologia 63 (3), pp. 826-833 : 829-831

Stigmaeopsis nanjingensis (Ma & Yuan, 1980)

Figures 2B , 3I–L

Stigmaeopsis nanjingensis is known only from Oriental region, from China (Palearctic region probably), and from Europe: in Italy ( Pellizzari and Duso, 2009), in Hungary ( Kontschan and Nemenyi, 2013) and in mainland Portugal ( Naves et al. 2021). According to Migeon and

Dorkeld (2022), this species inhabits several bamboos species belonging to the genera Fargesia ,

Phyllostachys and Pseudosasa .

Records: 7 females, 3 males collected on Phyllostachys sp. ( Poaceae ) French-Italian Border post, (43.7859°N 7.5277°E, alt. 26 m a.s.l.), Menton (Alpes-Maritimes), France 30-IX-2019,

leg. Auger P., Migeon A.

This new occurence is not very surprising as Pellizzari and Duso (2009) previously reported this species in the Italian town of Ventimiglia (Imperia district) which is located close to the

French border (less than 10 km).

Distinctive characters ( Fig. 2B ): (1) in females, the distance between insertions of setae e 1 is similar to that found between insertions of setae d 1; (2) the setae d 1 are longer than the distance between the insertions of setae d 1 members ( Saito et al. 2018).

Note: this species was erroneously reported as Stigmaeopsis celarius Banks, 1917 by Auger and Migeon (2007) (12 females, 10 males collected on Phyllostachys viridiglaucescens Rivière & C. Rivière ( Poaceae ), Bambouseraie de Prafrance (44.0718°N, 3.9796°E, alt. 144 m a.s.l), Générargues (Gard), France 16-IX-2003, leg. Migeon A.) and it was previously collected in Southern France but had not been identified until this work (4 females, 1 male collected on S. yashadake , (43.7348°N 3.9805°E, alt. 86 m a.s.l.), Saint Drézéry (Hérault), France 26-XI-2017,

leg. Migeon A.); new species for France and new host record on S. yashadake .

Figures

Figure 2 A – abaxial side of a vine leaf with nests of spider mite most likely produced byOligonychus perseae; B – Stigmaeopsis nanjingensis, female. Part of the dorsal hysterosoma showing the length of setaed1 and the relative distances between members of setaee1 and d1; scale bars A=5 cm, B=50 µm.

Figure 3 A–D Aponychus corpuzae: A – symptoms on bamboo leaves; B – female; C – female harbouring winter coloration; D – male. E–H Oligonychus perseae: E – symptoms under avocado leaves; F – nests along the vein, abaxial side of avocado leaf; G – details of a nest showing two females, a nymph and three eggs; H – female. I – LStigmaeopsis nanjingensis: symptoms under bamboo leaves with inhabited and abandoned nests, abaxial side of bamboo leaf; J – details of a nest showing faeces accumulated on the left side; K – female under the silk web of a nest; L – female, nymph and two eggs.