Buenoa amnigenoidea Nieser

Fig. 60–62

Buenoa amnigenoidea Nieser, 1970: 80 [Type localities: Saramacca, Coesewijneproject, 8 km W of Saramacca-brug; Suriname, road to Afobaka, at high voltage mast; Antonio 99 (?); Record: Brazil; Types in Manaus (INPA?) and Nieser N. Collection]; Moreira et al. (2011): 53 [Check-list of Brazil].

Comments. This species is very similar to B. amnigenus . Both have the synthlipsis conspicuously narrow, about one-tenth of the vertex width, and the rostral prong originating laterally on the proximal region of the third rostral segment with its apex rounded (Fig. 60, 66).

These species can be differentiated primarily by the yellow color, stained with light brown, along the body of B. amnigenoidea . The labrum of this species has tufts of setae on its ventral surface; B. amnigenus has tufts of setae on the sides of the labrum. The fore trochanter of B. amnigenoidea has a projection on its inner surface (Fig. 61); the fore femur is stronger and with a posterior margin more sinuous than in B. amnigenus, besides the distinct chaetotaxia. Stridulatory teeth of the fore tibia in B. amnigenus are of similar size (Fig. 67), whereas in B. amnigenoidea apical teeth are larger than basal one (Fig. 61).

Material. BRAZIL: Estado do Amazonas, Município de São Gabriel da Cachoeira, Morro dos Seis Lagos, Lago Vulcão [0.283ºN / 66.680ºW], 09.X.1990, (U. C. Barbosa), det. J. F. Barbosa: 1 m and 1 f macropterous (INPA); Município de Barcelos, Comunidade Samauma, igarapé Samauma, kinon [0.00133ºN / 62.82436ºW], 09.VIII.2009 (N. Ferreira Jr.): 1 m brachypterous (INPA); (A. P. M. Santos, N. Ferreira Jr., F. F. Salles, J. L. Nessimian, U. G. Neiss & J. O. Silva): 1 f macropterous (INPA); igarapé da Sharp [0.996889ºN / 62.90522ºW], 10.VIII.2009, (N. Ferreira Jr.): 1 m and 1 f brachypterous, 2 f macropterous (DZRJ); Serra do Aracá, buritizal [0.85225ºN / 64.48155ºW], 06.VIII.2009, (A. P. M. Santos): 1 m and 2 f brachypterous (DZRJ); Município de Iranduba, várzea [3.22ºS / 60.00º], 07.VII.2008, (J. F. Barbosa, P. V. Cruz & L. M. Fusari): 1 m macropterous (DZRJ); Rio Solimões, banco de macrófitas, próximo ao Canal da Xiborena [3.15799ºS / 59.92794ºW], 10.VII.2008, (J. F. Barbosa & P. V. Cruz): 1 f brachypterous (DZRJ); Estado do Pará, Município de Oriximiná, Cachoeira Porteira, Rio Trombetas, Lago Caetano [1.0ºS / 57.0ºW], 0 9.III.1986, (U.C. Barbosa): 2 m and 2 f macropterous (INPA).