| Wallacellus piceus, antenna. |
| Wallacellus piceus, Holotype declivity photo K Makarov. |
| Wallacellus piceus, Holotype dorsal photo K Makarov, length: 2.1-2.5 mm. |
| Wallacellus piceus, Holotype frons photo K Makarov. |
| Wallacellus piceus, Holotype labels photo K Makarov. |
| Wallacellus piceus, Holotype side photo K Makarov, length: 2.1-2.5 mm. |
| Wallacellus piceus, side, length: 2.1-2.5 mm. |
| Wallacellus piceus, top, length: 2.1-2.5 mm. |
| Wallacellus piceus, top, length: 2.1-2.5 mm. |
| Wallacellus similis, declivity. |
| Wallacellus similis, pronotum. |
| Wallacellus similis, side, length: 2.0-2.9 mm. |
| Wallacellus similis, top, length: 2.0-2.9 mm. |
| Wallacellus striatulus, side, length: 2.5-2.6 mm. |
| Wallacellus striatulus, top, length: 2.5-2.6 mm. |