Included taxa
Mello-Leitão, C. F. de (1945a). Tres novas especies de Gasteracanthinae e notas sôbre a subfamília. Anais da Academia Brasileira de Ciências 17: 261-267. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Micrathena ruschii | Araneidae | 266, f. 7-9 (Df) | Acrosoma ruschii |
| Micrathena saccata | Araneidae | 263, f. 1-3 (Df) | Thaumastobella mourei |
| Micrathena spitzi | Araneidae | 264, f. 4-6 (Df) | Ildibaha acanthomasta |
Genera
| Genus | Family | Page |
|---|---|---|
| Thaumastobella Mello-Leitão, 1945 | Araneidae | 263 |