| 1. Pronotum with lateral carina; elytra long, almost completely covering the hind wings, parallel-sided, median edges contiguous to apex, apices flat; tarsomere IV deeply notched |
| Tujamita plenalatum Rosa et al., 2020 |
| –. Pronotum without lateral carina (Figure 2b, Figure 4b and Figure 6b); elytra short, exposing apical third of hind wing, with median edges separated and divergent apicad, lateral edges sinuate, apices swollen (Figure 1, Figure 3 and Figure 5); tarsomere IV truncate |
| 2 (Jurasai Rosa et al., 2020) |
| 2. Elytra strongly tapered on posterior 2/3; sternite VIII partly exposed |
| J. itajubense Rosa et al., 2020 |
| –. Elytra weakly tapered on posterior 1/3 (Figure 1, Figure 3 and Figure 5); sternite VIII concealed |
| 3 |
| 3. Maxillary palpus four-segmented (Figure 2a,b); antenna short, reaching basal third of elytra; pronotum widest at middle (Figure 2e); phallus 1.4 times longer than parameres (Figure 2f–j) |
| J. miraculum sp. nov. |
| –. Maxillary palpus five-segmented (Figure 4b and Figure 6b); antenna long, reaching half of elytra; pronotum widest at anterior third (Figure 4d and Figure 6f); phallus as long as parameres (Figure 4j–m and Figure 6g–i) |
| 4 |
| 4. Labrum truncate to slightly emarginate (Figure 6a,c–e); phallus tapered (Figure 6g,h) |
| J. digitusdei Rosa et al., 2020 |
| –. Labrum deeply emarginate (Figure 4c,e); phallus cylindrical with apical flap (Figure 4j–m) |
| J. vanini sp. nov. |