Stenochironomus gladius Borkent, 1984

Reis, Emiliano De Angelis, Filho, Arlindo Serpa & Ferreira-Keppler, Ruth L., 2013, Two new species and records of Stenochironomus Kieffer from Brazilian Amazon region, with description of immature stages (Diptera: Chironomidae), Zootaxa 3710 (5), pp. 449-466 : 464

Stenochironomus gladius Borkent, 1984

Stenochironomus gladius Borkent, 1984: 108 ; Spies & Reiss 1996: 73.

Material examined. BRAZIL, Amazonas State, Manaus, São Gabriel da Cachoeira, saída da BR 307, Km 12, Igarapé das pilhas mark #9, 00º 36’36,8”S, 67º 01’37,7’’W, 23–30.VIII.11, collected in a submerged leaf, 1 male with pupal and larval exuviae, leg. E.D. De-Angelis-Reis (INPA, slide-mounted in Euparal); Manaus, Sítio do Raul, Bairro Tarumã, 03º 01’22,0”S, 60º 04’47,0’’W, 14.VII.11, 1 male with pupal and larval exuviae, leg. E.D. De-Angelis-Reis; Presidente Figueiredo, AM 240, Km 20, Balneário Sossego da pantera, igarapé da onça, 02° 00'52"S, 60° 01'43"W, 25–30.IX.10, 1 male with pupal exuviae, leg. E.D. De-Angelis-Reis; Presidente Figueiredo, AM 240, Igarapé do Chico, 02° 04'30,1"S, 59° 51'20,6"W, 25–30.IX.10, 1 male with larval exuviae leg. E.D. De- Angelis-Reis.

Remarks. The immatures of Stenochironomus gladius were obtained from submerged mined leaves on gravel or rocky bottom streams areas of permanent water flow. This species was only known to Costa Rica. Herein we record it for the first time in Brazil, in Amazonas and Roraima States.

Stenochironomus nudipupa Borkent, 1984

Stenochironomus nudipupa Borkent, 1984: 117 ; Spies & Reiss 1996: 73

Material examined. BRAZIL, Roraima state, Amajari, Estação Ecológica de Maracá mark #1, 03 º 22’11,6’’N, 61º 26’30,1’’W, 13–20.IX.11, collected in submerged leaves, 2 males with pupal and larval exuviae, leg. E.D. De- Angelis-Reis (INPA, slide-mounted in Euparal); BRAZIL, Amazonas state, Manaus, bairro Tarumã, Sítio do Raul, 03º 01’22,0”S, 60º 04’47,0’’W, 14.VII.11, 2 males with pupal and larval exuviae, leg. E.D. De-Angelis-Reis; Manaus, bairro Jorge Teixeira, Sítio três irmãos, 03º 00’22,5”S, 59º 54’57,0’’W, 14.VII.11, 2 males with pupal and larval exuviae, leg. E.D. De-Angelis-Reis.

Remarks. The immatures of Stenochironomus nudipupa were obtained from submerged mined leaves in small streams with poor water flow. The adults were obtained through laboratory rearing. This species was, so far, only known from Costa Rica, Ecuador and Venezuela. In this paper we recorded this species for the first time in Brazil, in the Amazonas and Roraima States.