Included taxa
Mello-Leitão, C. F. de (1917a). Notas arachnologicas. 5, Especies novas ou pouco conhecidas do Brasil. Brotéria (Ser. Zool.) 15: 74-102. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Acanthoscurria theraphosoides | Theraphosidae | 75, f. 1-2 (m) | Acanthoscurria theraphosoides |
| Aglaoctenus lagotis | Lycosidae | 99 (Dj) | Architis paulistana |
| Ariadna boliviana | Segestriidae | 82 (Df) | Ariadna dubia |
| Cheiracanthium inclusum | Cheiracanthiidae | 97, f. 13 (Df; preoccupied by Thorell, 1895) | Cheiracanthium gracilipes |
| Gasteracantha cancriformis | Araneidae | 93 (Df) | Gasteracantha comstocki |
| Goeldia nigra | Titanoecidae | 77, f. 22-23 (Df) | Aebutina nigra |
| Lasiodora parahybana | Theraphosidae | 74 (Df) | Lasiodora parahybana |
| Leprolochus parahybae | Zodariidae | 83, f. 24 (Df) | Leprolochus parahybae |
| Loxosceles anomala | Sicariidae | 80, f. 4-6 (Dmf) | Calheirosia anomala |
| Loxosceles immodesta | Sicariidae | 81 (Df) | Calheirosia immodesta |
| Lyssomanes tristis | Salticidae | 100 (Dm) | Chinoscopus brasiliensis |
| Meotipa pulcherrima | Theridiidae | 86, f. 7-8 (Df) | Argyrodes pulcherrimus |
| Misumena viridans | Thomisidae | 94 (Df) | Misumena viridans |
| Neodiplothele irregularis | Barychelidae | 77, f. 19-21 (Df) | Neodiplothele irregularis |
| Oecobius navus | Oecobiidae | 78 (Dmf) | Oecobius variabilis |
| Olios minensis | Sparassidae | 96, f. 17 (Df) | Polybetes minensis |
| Olios mutabilis | Sparassidae | 95, f. 18 (Df) | Olios mutabilis |
| Parawixia bistriata | Araneidae | 87, f. 9 (Dmf) | Araneus horizontinus |
| Phoneutria nigriventer | Ctenidae | 97, f. 15-16 (Dm) | Ctenus rufichelis |
| Scytodes vittata | Scytodidae | 79, f. 3 (Dm) | Scytodes vittata |
| Wulfilopsis tenuipes | Anyphaenidae | 95, f. 14 (Df) | Teudis tenuipes |
Genera
| Genus | Family | Page |
|---|---|---|
| Calheirosia Mello-Leitão, 1917 | Sicariidae | 80 |
| Neodiplothele Mello-Leitão, 1917 | Barychelidae | 76 |