Dissomphalus acutipupu Colombo & Azevedo, 2018

Dissomphalus acutipupu Colombo & Azevedo in Colombo et al. 2018: 21 (♂, holotype from Maranhão, Brazil, CZMA, not examined).

Diagnosis. This species is known by the following characteristics: median clypeal lobe trapezoidal; tergal process: lateral, with dense tuft of setae inside of shallow depression; genitalia with harpe entirely wide, with apical margin straight; digitus short, with dorsal corner poorly projected; basivolsella well delimited with wide protuberance, without spines; aedeagal ventral valve with apex posterior to apex of dorsal one, inner margin straight, outer margin outcurved, slightly curved laterad; aedeagal dorsal valve narrow, with two pairs of apical lobes; outer lobe short, narrow, with apical margin acute, apex of inner median filament anterior to apex of lobes; basal cover plate entirely narrow, with posterior margin broadly rounded; apodeme extending beyond genital ring.

Revised material. ECUADOR, Napo Prov., 3♂, Huahua Sumaco, km 44 on Hollin–loreto Rd., 15–22.XII.1989, MT, M. G. J. Wasbauer, H. Real (UFES); Prov. Mor ., 2♂, Santiago, Miazal, 50 km se. Macas, 4–7.I. 1993, 300m, M. & J. Wasbauer (UFES) .

New material. BOLIVIA: Cochabamba, Villa Tunari, 16°54'55''S 65°22'06''W, MT, H. Heider, 1♂, 15.III.2001, 1♂, 6.X.2001, 1♂, 5–11.XI.2001 (CNCI) ; BRAZIL, Acre, 2♂, Pq. Nac. Serra do Divisor, Norte—9, 20–21.XI.1996, arm. Malaise, E. F. Morato col. (UFES, UFAC) ; Amazonas, Lábrea, 1♂, Ramal Apaeral, Km 09, Sítio São Raimundo, 07°19'10''S 64°40'07''W, VI.2005, arm. Malaise, F. F. Xavier F col. (INPA) ; Manaus, Reserva Ducke, arm. Malaise, 1♂, Igarapé Bolívia, 10.II.2003, J. M. G. Ribeiro, col. (INPA) ; 1♂, Igarapé Ipiranga, 31.XII.2002, J.Vidal & J. Vidal (INPA) ; 1♂, Igarapé Ipiranga, 13.I.2003, J.M.G. Ribeiro & J. Vidal col. (INPA) ; ECUADOR, Napo Prov., 4♂, Huahua Sumaco, km 44 on Hollin –loreto Rd., 15–22.XII.1989, MT, M. G. J. Wasbauer, H. Real (UCDC) ; Sucumbios, 1♂, Rio Napo, Sacha Lodge, 0°30'S, 76°30'W, 225m, 12–22.VI.1995, MT, P.Hibbs (CNCI) ; Sacha Lodge, 0.5°S 76.5°W, 290m, P. Hibbs, 1♂, 12–22.II.1994, 1♂, 13–23.IV.1994 (LACM) ; PERU, Monson Valley, 1♂, Tingo Maria, X–12–1954, E. I Schlinger & E. S. Ross collectors (CASC) .

Distribution. Brazil (Maranhão). Now, it is recorded for the first time from Bolivia, Ecuador, Peru and in the Brazilian states: Acre, Amazonas.