Xyleborus bispinatus, Eichhoff, 1868

Gallego, Diego, Dios, Miguel Ángel Gómez De, Riba-Flinch, Josep Maria, García-Reina, Andrés, Galián, José, Mas, Hugo, Lencina, José Luis, Zafra, María, Henares, Ignacio, Rodríguez, Francisco, Alcázar, María Dolóres, Knížek, Miloš & Gómez, Demian F., 2025, Euwallacea similis (Ferrari), a new ambrosia beetle (Coleoptera: Curculionidae: Scolytinae) for the Iberian Peninsula, and new records on Euwallacea fornicatus (Eichhoff), Xyleborus bispinatus Eichhoff and Amasa parviseta Knížek & Smith, Zootaxa 5673 (1), pp. 63-78 : 66

Xyleborus bispinatus

Records from various trapping campaigns (2019-2024) confirm the presence of stable populations and occasional captures of this species in Eastern and Southeastern Spain (provinces of Valencia, Alicante, Murcia and Castellón) ( Table 1, Figure 1 ), as previously reported in Gallego et al. (2022). Its distribution range has also been expanded to Mallorca (Balearic Islands) and Southern Spain (Motril, Granada province). Notably, three specimens from Motril were obtained via direct collection from an ornamental Parkinsonia aculeata L. tree ( Fabaceae ), including a male ( Figure 2 ). This represents the first host plant record for this insect in the Iberian Peninsula, and a new host plant for this species.

Figures

FIGURE 1. Records of populations of the alien Xyleborini species. Blue diamonds: present work. Red diamond: possible record. Green triangles: previous records of Amasa parviseta (Knížek & Smith 2024), Euwallacea similis (Toccafondi et al. 2025) and Xyleborus bispinatus (Gallego et al. 2022). Spanish province codes: Gr: Granada; Al: Almería; Mu: Murcia; Ac: Alicante; Va: Valencia; Ca: Castellón; Ma: Mallorca.

FIGURE 2. Habitus of the species. A–B: Amasa parviseta female; C–D: Euwallacea fornicatus female; E–F: E. fornicatus male; G–H: Euwallacea similis female, I–J: Xyleborus bispinatus female; K–L: Xyleborus bispinatus male.