| Character | Ctenolepisma calvum (Ritter, 1910) from Kerala | Ctenolepisma phantasma Molero-Baltanás, Raphel, Mitchell & Jose, n. sp. from Europe |
|---|---|---|
| Body length | Up to 10 mm | Up to 12 mm (usually 8-9 mm) |
| Number of sensory papillae in labial palp | 5 in a single row | 3 in single row |
| Number of lateral combs on pronotum | (8-9) + (8-10) | 8 |
| Number of macrosetae of lateral combs of pronotum | 2-5 | 1-4 |
| Number of lateral combs on mesonotum | (8-9) + (8-9) | (7-8) + (7-8) |
| Number of macrosetae of lateral combs of mesonotum | 2-3 | 1-3 |
| Number of lateral combs on metanotum | (5-6) + (5-7) | (5-8) + (5-8) |
| Number of macrosetae of lateral combs of metanotum | 1-3 | 1-3 |
| Number of macrosetae of posterolateral combs of thoracic nota | 2-3 | 1-3 |
| Anterior trichobothrial position of pronotum | N-4 (or N-5) | N-3 |
| Anterior trichobothrial position of mesonotum | N-1 | N-2 |
| Number of macrosetae of prosternal combs | 7-10 | 3-4 |
| Number of macrosetae of mesosternal combs | 5-8 | 4-5 |
| Number of macrosetae of metasternal combs | 7-10 | 4-6 |
| Metasternum ratio length/width | 0.9-1.0 | 0.87 |
| Number of macrosetae of infralateral combs of urotergites II-VIII | 3-5 | 3-4 |
| Number of macrosetae of sublateral combs of urotergites II-VIII | 2 | 2-3 |
| Number of macrosetae of submedian combs of urotergites II-VIII | 2-3 | 1-2 |
| Number of macrosetae of lateral combs of urosternites | 4-13 | 4-8 |
| Number of pairs styli | 2 pairs (on VIII and IX) | 1 pair (on IX) |
| Scales on femora | Subtriangular, elongate, | Subtriangular, elongate, |
| bifid or truncate apically | bifid or truncate apically |