Table 2.
Main features of Szeptyckitheca species from the Old World.
| Species / features | S.boneti | S.coerulea | S.formosana | S.implicata | S.kesongensis | S.koreana | S.machadoi | S.nepalica | S.santiagoi | S.spinimucronata |
|---|---|---|---|---|---|---|---|---|---|---|
| Trunk color pattern | dorsally black or purplish-red | bluish with white spots | dorsally yellowish with lateral sides purplish | dark yellowish with purple stripes and spots | pale | lateral large abdomen violet | with transversal stripes and spots of dark pigment | pale, with diffused pigment and violet patches | variable, usually laterally dark and dorsally pale | whitish, with diffused fields of purple pigment |
| Ant. IV subsegments | 10–12 | 9–10 | 9–10 | 11 | 10 | 9 | 10 | 10 | 10 | ~10 |
| Ant. III chaetae | 24* | ? | ? | ? | 23 | 23 | 21* | ? | 15? | ? |
| Ant. II chaetae | ? | 15–16 | ? | >8 | 16 | 16 | 15* | ? | 15? | ? |
| Ant. II long chaetae | ? | -? | ? | - | - | - | 4 | -? | 1 | ? |
| Ant. I chaetae | ? | 7 | 4? | 5 | 7 | 7 | 5? | ? | 5 | ? |
| Interocular chaetae | 2 | 2 | -? | 1 | 2 | 2 | 2? | -? | 1 | -? |
| Frontal head A1 | + | + | + | + | - | + | + | + | - | + |
| Head vertex large spines (total) | 10 | 6 | 15 | 16 | 16 | 4**** | 16 | 11 | 14 or 16 | 16 |
| Head vertex rough spines | -? | - | + | + | +/- | +/- | -? | -? | +? | + |
| Head frons sec. reduced chaetae | + | - | -? | - | - | + | - | -? | +? | - |
| Head interantennal bifid chaetae (♀) | - | - | - | - | + | - | - | - | - | - |
| Head clypeal f line mac | - | - | - | - | - | - | - | - | - | - |
| Tr. I n° of spines | ? | 1 | ? | 1 | 1 | 1 | 1 | 1 | 1 | ? |
| Tr. I spine apex shape | ? | blunt | ? | blunt | capitate | capitate | blunt | blunt | blunt | ? |
| Tr. II spine apex shape | ? | blunt | ? | blunt | capitate | capitate | - | blunt | blunt | ? |
| Tr. III spine apex shape | ? | blunt | ? | blunt | capitate | capitate | blunt | blunt | blunt | blunt |
| Tr. III regular chaetae | ? | 5 | ? | 5 | 5 | 4 | 4 | ? | 5 | 5 |
| Tr. III oval organs | ? | -? | ? | -? | 2 | 2 | - | ? | ? | -? |
| Femur I spine | ? | +(1) | ? | ? | +(1) | +(1) | +(1) | ? | +(2) | ? |
| Ungues inner tooth | + | + | + | + | + | + | + | + | - | + |
| Ungual tunica | -** | + | + | + | + | + | + | + | + | + |
| Ungual pseudonychia | weak | strong | - | weak | strong | strong | strong | strong | weak | - |
| Unguiculus I internal tooth | + | - | + | + | - | + | + | +/- | +/- | - |
| Unguiculus III apical filament | thin | thin | thin | thin | thin | thin | thin | thin? | thin | thin |
| Unguiculus III filament compared to unguis III | < | < | < | < | < | = | > | < | = | < |
| Large abdomen capitate mac | ? | + | - | + | - | - | ? | - | - | - |
| Female anal valve mps1 winged | - | - | - | - | + | - | - | - | - | - |
| Female subanal appendage shape | very long, acuminate, serrated at the middle | long, acuminate, unilaterally serrated | long, blunt, apically serrated | long, acuminate, apically serrated | long, acuminate, apically serrated | long, blunt, apically unilaterally serrated | long, spatulated, apically serrated | long, acuminate, apically serrated | long, with a bidentate apex, smooth or apically serrated | long, acuminate, apically serrated |
| Manubrial chaetae | ? | 7 | 7 | 7 | ? | ? | ? | 6 | ? | 7 |
| Dens ventral chaetotaxy | 3,2,2…1 or 3,2…1 |
4,2…1 | 3,1…1 | 2,2…1 | 3,2…1 | 3…1 or 2…1 |
2,2…1 | 3,2....1 | 2,2…1*** | 3,2…1 |
| Dens dorsal chaetae | 17–18 | 16 | 15 | 19 | 20 | 17 | 24 | 13 | 13*** | 17 |
| Prominent mucronal notch | + | + | + | + | + | + | + | + | + | + |
Data based on the original descriptions, with exception of S.santiagoi, which was based on Yosii (1959) and Lawrence (1968). Legends: ‘sec.’ secondarily, ‘Tr.’ trochanter; ‘+’ present; ‘-’ absent; ‘~’ about; ‘=’ subequal; ‘>’ surpassing the tip of unguis; ‘<’ not reaching the tip of unguis; ‘?’ unknown, unclear data; ‘*’ = including the peculiar small sensilla on cavities outside the apical organ; ‘**’ = ungues I and II without tunica, unguis III possibly with a small distal rudiment; ‘***’ = we considered dental chaetae as described by Yosii (1959), since Lawrence’s (1968) redescription is imprecise regarding this feature and may be mistaken; ‘****’ = the large head vertex spines of S.koreana, comb. nov. are mixed with large curved rough mac.