Family: Tetragnathidae Menge,1866 [urn:lsid:nmbe.ch:spiderfam:0032] Detail
Gen. Opas O. Pickard-Cambridge, 1896 [urn:lsid:nmbe.ch:spidergen:03811] Detail
N.B.: removed from the synonymy of Leucauge White, 1841 by Levi, 2008b: 167, after Archer, 1951a, contra Levi, 1980a: 23.
Opas caudacuta (Taczanowski, 1873) | f | Peru, Guyana     [urn:lsid:nmbe.ch:spidersp:013844]
Epeira caudacuta Taczanowski, 1873: 136, pl. 5, f. 16 (Df).
Araneus caudacutus Petrunkevitch, 1911: 284.
Chrysometa caudacuta Mello-Leitão, 1948: 164 (Tf from Araneus).
Mecynometa caudacuta Levi, 1991a: 178 (Tf from Chrysometa).
Opas caudacuta Levi, 2008b: 169, f. 14 (Tf from Mecynometa).
Opas caudata (Mello-Leitão, 1944) | f | Brazil     [urn:lsid:nmbe.ch:spidersp:013845]
Mecynometa caudata Mello-Leitão, 1944a: 9 (Df).
Opas caudata Levi, 2008b: 169 (Tf from Mecynometa).
Opas lugens O. Pickard-Cambridge, 1896 * | f | Mexico, Panama     [urn:lsid:nmbe.ch:spidersp:013754]
Opas lugens O. Pickard-Cambridge, 1896a: 185, pl. 23, f. 3 (Df).
Argyroepeira lugens O. Pickard-Cambridge, 1897c: 234.
Leucauge lugens F. O. Pickard-Cambridge, 1903a: 442, pl. 42, f. 12 (f).
Opas lugens Levi, 2008b: 167, f. 11-12 (f).
Opas melanoleuca (Mello-Leitão, 1944) | f | Brazil     [urn:lsid:nmbe.ch:spidersp:013850]
Mecynometa melanoleuca Mello-Leitão, 1944a: 8 (Df).
Opas melanoleuca Levi, 2008b: 169 (Tf from Mecynometa).
Opas paranensis (Mello-Leitão, 1937) | f | Brazil     [urn:lsid:nmbe.ch:spidersp:013852]
Cyclosa paranensis Mello-Leitão, 1937a: 7, f. 7 (Df).
Mecynometa paranensis Levi, 1999: 310 (Tf from Cyclosa).
Opas paranensis Levi, 2008b: 169 (Tf from Mecynometa).
Opas trilineata (Mello-Leitão, 1940) | f | Brazil     [urn:lsid:nmbe.ch:spidersp:013855]
Mecynometa trilineata Mello-Leitão, 1940h: 28, f. 9-10 (Df).
Opas trilineata Levi, 2008b: 169 (Tf from Mecynometa).
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