Material examined. “ AMAZONAS STATE, Fonte Boa Municipality, Rio Fonte Boa, Lago Ressaca Grande, black light, 02º28’26.4” S 66º09’17.1” W, 08.IX.2003, Hamada N. & Nessimian J.L. leg.” (5 ♀♀ / DZRJ 6528); “ MATO GROSSO STATE, Poconé Municipality, Fazenda Ipiranga, Pousada Piuval, Baía do Piuval, 16º23’17.2” S 56º35’22.1” W, 121 m, VII.2013, Clarkson B., Sampaio B.H.L. & Ferreira-Jr. N. leg.” (1 ♀ / DZRJ 6571); “ Fazenda Ipiranga, Pousada Piuval, charco at river, 16º23’09.9” S 56º37’17.0” W, 114 m, 28.VII.2013, Clarkson B., Sampaio B.H.L. & Ferreira-Jr. N. leg.” (139 ♀♀ / DZRJ 6569); “ Fazenda Ipiranga, Pousada Piuval, puddle on the way to Baía do Piuval, 16º23’06.3” S 56º35’28.4” W, 122 m, 26.VII.2013, Clarkson B., Sampaio B.H.L. & Ferreira-Jr. N. leg.” (32 ♀♀ / DZRJ 6567); “ Fazenda Ipiranga, road to Pousada Piuval, 16º22’42.2” S 56º37’22.8” W, 86 m, VII.2013, Clarkson B., Sampaio B.H.L. & Ferreira-Jr. N. leg.” (21 ♂♂ 337 ♀♀ / DZRJ 6568); “ MATO GROSSO DO SUL STATE, Ladário Municipality, lake next to Pousada Vitória Régia, light trap, 17.IX.2008, Sanseverino A.M. leg.” (2 ♀♀ / DZRJ 6570); “ PARÁ STATE, Parauapebas Municipality, FLONA Carajás, Lago Gelado, black light, 25.IX.2007, Ferreira-Jr. N. & Alecrim V. leg.” (4 ♀♀ / DZRJ 6565); “ FLONA Carajás, Lago Gelado, bridge on the way to the lake, black light, 25.IX.2007, Ferreira-Jr. N. & Alecrim V. leg.” (7 ♀♀ / DZRJ 6566); “ RIO DE JANEIRO STATE, Macaé Municipality, Rio Macaé, BR 101 bridge, 16.VIII.2001, Ferreira-Jr. N. leg.” (8 ♀♀ / DZRJ 6572).
Geographic distribution. Notomicrus brevicornis is known from Argentina, Bolivia, French Guiana, Guyana, Suriname and the Brazilian states of Amazonas, Mato Grosso, Mato Grosso do Sul, Pará and Rio de Janeiro. First record for Amazonas and Pará.