‡ Heterotrioza chenopodii (Reuter, 1876)

(Fig. 186)

Material examined. El Hierro: 1 ♀, above Frontera, Valverde road, 1130 m alt., 5.v.1993 (C. Lienhard) (MHNG, dry mounted); 7 ♂, 16 ♀, Las Playas, East coast, Garden of Parador, 6.v.1993 (C. Lienhard) (MHNG, dry mounted). La Gomera: 5 ♂, 2 ♀, San Sebastián, 10.iii.1990 (B. Merz) (MHNG, dry mounted); 1 ♂, El Cedro, 1120 m alt., 1.v.1993 (C. Lienhard) (MHNG, dry mounted); 1 ♀, 13–14 km from San Sebastián to Valle Gran Rey, 800 m alt., 1.v.1993 (C. Lienhard) (MHNG, dry mounted); 1 ♂, Playa de Santiago, 2.v.1993 (C. Lienhard) (MHNG, dry mounted). Tenerife: 3 ♂, 7 ♀, El Medano, 50 m alt., 3.iii.1990 (B. Merz) (MHNG, dry mounted); 3 ♂, 4 ♀, parque rural de Anaga, 0–300 m alt., 5.iii.1990 (B. Merz) (MHNG, dry mounted); 1 ♀, El Rio, 420 m alt., 6.iii.1990 (B. Merz) (MHNG, dry mounted); 4 ♂, 7 ♀, Barranco del Rio, 550 m alt., 6.iii.1990 (B. Merz) (MHNG, dry mounted); 2 ♀, Güímar, 400 m alt., 9.iii.1990 (B. Merz) (MHNG, dry mounted); 1 ♀, Las Cañadas, 14.vii.1995 (A. Camacho) (MHNG, dry mounted); 3 ♂, El Medano, 3.x.1998 (B. Merz) (NHMB, dry mounted); 3 ♂, 6 ♀, 4 km NW of La Sabinita, 28.1992 N, 16.5305 W, 1150 m alt., 27–28.iii.2015 (L. Dembický) (MMBC, dry mounted); 1 ♂, Los Realejos, 5.v.2017, Solanum tuberosum (GMR) (ICIA, slide mounted); 2 ♂, La Matanza, 8.v.2018, S. tuberosum (GMR) (ICIA, slide mounted); 1 ♀, El Rosario, 8.v.2018, S. tuberosum (GMR) (ICIA, slide mounted); 1 ♂, 2 immatures, San Juan de La Rambla, 28.3805 N, 16.6440 W, 400 m alt., 10.vi.2020, Chenopodium album (M. Quintana) (ICIA, 70% ethanol); 8 ♂, 18 ♀, 4 immatures, La Laguna, Bajamar, 28.5520 N, 16.3432 W, 70 m alt., 4.ii.2020, C. album (S. Bastin) (SBPC, 70% ethanol); 1 ♂, 1 ♀, 1 immature, same data but 4.iii.2021. Gran Canaria: 1 ♀, Pinar da Tamadaba, 1230 m alt., 12.v.1993 (C. Lienhard) (MHNG, dry mounted); 1 ♂, Barranco de Tirajana, near Santa Lucia, 630 m alt., 12.v.1993 (C. Lienhard) (MHNG, dry mounted); 1 ♀, southwest of Agüimes, above Sardina, 300 m alt., 13.v.1993 (C. Lienhard) (MHNG, dry mounted). Fuerteventura: 2 ♂, 1 ♀, playa de Jandía, 19–24.iii.1996 (E. Heiss) (NHMB, dry mounted); 1 ♂, Morro Jable, 19–24.iii.1996 (E. Heiss) (NHMB, dry mounted). Lanzarote: 1 ♂, Haria, 1–6.iii.1990 (E. Heiss) (NHMB, dry mounted); 1 ♂, 3 ♀, Playa Blanca, 50 m alt., 18.ii.1996 (C. Lienhard) (MHNG, dry mounted).

Description. Adult and fifth-instar immature. Ossiannilsson (1992).

Distribution CI. La Gomera, Tenerife, Gran Canaria, Fuerteventura, Lanzarote (Loginova 1976), La Palma (Domingo-Quero et al. 2003). El Hierro (new record).

Host plant CI. Chenopodium album (Amaranthaceae) .

Biology. We observed larvae and adults of two predators, Orius (Orius) limbatus Wagner ( Hemiptera:

Anthocoridae) and Pinalitus sp. ( Hemiptera: Miridae).