Scheloribates striolatus, Balogh, 1960

Ermilov, Sergey G. & Starý, Josef, 2017, A new species of Scheloribates (Acari, Oribatida, Scheloribatidae) from Vietnam, with key to the striolatus-group, Ecologica Montenegrina 10, pp. 14-21 : 19-20

Striolatus -group in the subgenus Scheloribates

Known species of Scheloribates with entire or partially striate (forming sometimes reticulate pattern) notogaster (lines present also on ventral side in some species) can be ascribed to striolatus -group (we use this group’s name for the first time). At present, this group can be emcompassed 10 species (including present new species) and one subspecies. Some species (e.g. S. schauenbergi Mahunka, 1988 , S. rugosus Hammer, 1958 ) having stria only on the pteromorphs are not included in this newly proposed group.

Key to known species/subspecies of the striolatus -group in the subgenus Scheloribates

1 Only posterior part of notogaster with striate pattern; body size: 457–564 × 293–400............................... ............... S. yamaeensis Nakamura, Hashimoto, Nishi, Nakamura & Fujikawa, 2015 . Distribution: Japan

- Entire notogaster with striate pattern .........................................................................................................2 2 Notogastral stria forming reticulate pattern ............................................................................................... 3

- Notogastral stria well separated, not forming reticulate pattern ................................................................ 6 3 Eleven pairs of notogastral setae present (c 3 present); body size: 574 × 331............................................... ...... S. labyrinthicus labyrinthicus Jeleva, 1962 (see Csiszár & Jeleva 1962). Distribution: Mediterranean

- Ten pairs of notogastral setae present (c 3 absent) ...................................................................................... 4 4 Heads of bothridial setae slightly dilated, narrowly lanceolate; body size: 575–615 × 322–405................ ...................................................... S. sergienkoae Subbotina, 1987 . Distribution: southern Mediterranean

- Heads of bothridial setae well dilated, fusiform to clavate........................................................................ 5 5 Bothridial setae clavate, with heads rounded distally; notogastral sacculi with long openings; body size: 460 × 300.................................................... S. polygonatus Balogh & Mahunka, 1974 . Distribution: Cuba

- Bothridial setae fusiform, with heads narrowed distally; notogastral sacculi with short openings; body size: 540–576 × 370–396 ............................................................................................................................ ...................... S. labyrinthicus oscensis Pérez-Íñigo jr., Herrero & Pérez-Íñigo, 1987. Distribution: Spain

6 Heads of bothridial setae with well developed distal apex ........................................................................ 7

- Heads of bothridial setae without distal apex ............................................................................................ 8 7 Apex of bothridial setae longer than heads; distance between sacculi S1–S1 longer than that of S2–S2; body size: 465–531 × 265–348................................................ S. daoensis sp. nov. Distribution: Vietnam

- Apex of bothridial setae shorter than heads; distance between sacculi S1–S1 shorter than that of S2–S2; body size: 700 × 498 ............................................... S. striolatus Balogh, 1960 . Distribution: Madagascar 8 Translamellar line complete, with two median arch-like structures; body length: 575 ............................... ................................................................................. S. biarcualis Hammer, 1973 . Distribution: Polynesia

- Translamellar line represented by two rudimentary parts near lamellae or absent .................................... 9 9 Prodorsum sparsely foveolate; interlamellar setae shorter than lamellar setae; body size: 273 × 121 … S. multirepetitus Subías, 2004 (= Incabates striatus Corpuz-Raros, 1980 ) (see Corpuz-Raros 1980). Distribution: Philippines

- Prodorsum not foveolate; interlamellar setae longer than lamellar setae ................................................ 10 10 Bothridial setae clavate, with heads rounded distally; body size: 485–545 × 324–424 .............................. ....................................................................... S. guhitanus Corpuz-Raros, 1980 . Distribution: Philippines

- Bothridial setae fusiform, with heads narrowed distally; body size: 538–618 × 436–490 .......................... ..................................................................... S. viguerasis Scull, Jeleva & Cruz, 1984 . Distribution: Cuba