Trichophthalma (Eurygastromyia) porteri Stuardo, 1934: 245–246 .

(Figs. 74–77)

Holotype. Male (MNNC), Chile, Santiago, Peñalolén, Casa de Piedra, 1600 m.

Distribution. Argentina. (Neuquén, Río Negro, Esquel). Chile. Región Metropolitana de Santiago: Santiago Province (Peñalolén). Región del Maule: Linares Province (Baños de Longaví). Región de Ñuble: Diguillín Province (Las Cabras). Región de La Araucanía: Malleco Province (Lonquimay) (Fig. 90).

References. Stuardo,1934:245–246 (desc.)fig.55; Stuardo,1946:99 (cat.,[ Trichophthalma (Eurygastromyia)]); Papavero, 1968: 5 (cat.); Angulo, 1971: 43 (in key), 136–139 (redes., figs. 113 (sper.), 114 (male ter.), 117 (aede.), 152 (dist.); Bernardi, 1973: 252 (list); Angulo, 1987: 9 (list); Devoto & Medan, 2006: 32 (ecol., biol.), 33–34 (list), 36–37 (com.); Papavero & Bernardi, 2009a: 9 (cat.); Kosmann et al., 2014: 415 (list).

Biology. Devoto & Medan (2006) recorded this species visiting the flowers of Berberis empetrifolia Lam. and Discaria chacaye (G. Don.) Tortosa, whereas T. porteri also has been recorded feed on flowers of Trevoa quinquenervia Gillies & Hook in central Chile (D. Medan, unpublished data) and Alstroemeria revoluta Ruiz & Pav. in foothills of the Región de Ñuble (R.M. Barahona-Segovia unpublished data).