Liriomyza valladaresae Carvalho-Filho, Almeida & Esposito, 2016

Liriomyza flagellae Valladares, 1986; Spencer, 1990: 67 (nomen nudum); Martinez & Etienne, 2002: 37 (nomen nudum). Liriomyza valladaresae, Carvalho-Filho et al., 2016: 446 .

Diagnosis. Wing length 2.6–3.2 mm. Head, face and antenna pale orange; mesonotum predominantly black, with dark marking almost reaching the scutellum; scutellum yellowish, sometimes with small black spot laterally; calypter light brown, fringe brown. Aedeagus (Fig. 4–6 in Carvalho-Filho et al. 2016): basiphallus slightly sclerotized with two extensions distally; mesophallus fused to distiphallus, forming two long sinuous tubules.

Host-plants. Amaranthaceae— Alternanthera tenella Colla, Amaranthus viridis L.

Distribution. Argentina, Brazil.

Material examined. Brazil, Pará, Belém: Jardim Botânico Bosque Rodrigues Alves, 1º25′48.2″S, 48º27′23.5″W, 18-XII-1992, M.C. Esposito [collector], ex leaf of Alternanthera tenella (♂) ; Campus de Pesquisa do Museu Paraense Emílio Goeldi, 1º26′56.3″S, 48º26′43.2″W, 01-III-1993, M.C. Esposito [collector], ex leaf of Alternanthera tenella (♀) ; Universidade Federal do Pará (UFPA), 1º28′17.2″S, 48º26′44.7″W, 20-VIII-2015, N. Monteiro [collector], ex leaf of Alternanthera tenella (♂) ; same location, 08-II-2017, N. Monteiro [collector], ex leaf of Alternanthera tenella (♂) ; same location, 22-XII-2016, N. Monteiro [collector], ex leaf of Alternanthera tenella (♂) ; Passagem Jáder Barba II, 1º25′06.9″S, 48º26′34.2″W, 20-VII-2016, N. Monteiro [collector], ex leaf of Alternanthera tenella (♀) .

Comments. Liriomyza valladaresae is similar to Liriomyza equiseti de Meijere in that the aedeagus forms a pair of sinuous tubules on the distiphallus, and it is differentiated mostly by the shape of the surstylus (with an apical spine in L. equiseti and no spines in L. valladaresae).