Stygnidius guerinii Soerensen, 1932

New records: BRAZIL. Amazonas: Parque Nacional do Jaú (01-54’16”S-61-25’48”W), male and female (MZSP); Rio Juruá, Lago Tamanigua, 25.IX.2003, Felipe Rego leg. female (INPA-158); Interflúvio Madeira-Purus, Careiro, Campina Tupana close to the Tupana river, 4°54'51" S 61°06'33" W, GEOMA2, area 2, 10. VII.2007, E.H. Wienkoski leg, males 6 females (INPA-OP 785); idem GEOMA2, area 2, E.H.Wienkoski leg, female (INPA-OP 784); idem, GEOMA2 area 2, 17. VII.2007, E.H.Wienkoski leg, female (INPA-OP 782); idem, GEOMA2, area2, 15.VII.2006, E.H.Wienkoski leg., male, 9 females (INPA-OP 787); idem,GEOMA2, area2, 15.VII.2006, E.H.Wienkoski leg., 3 females (INPA-OP 783).

Distribution: Until this report, S. guerinii has been recorded only in the type locality (Cayenne, French Guiana). The new records here presented extend the distribution to northern Brazil (Rio Negro basin, Rio Juruá Basin).