Galumna (Cosmogalumna)

Ermilov, Sergey G. & Corpuz-Raros, Leonila, 2015, New species of oribatid mites with auriculate pteromorphs (Acari, Oribatida, Galumnidae) from the Philippines, Zootaxa 3905 (4), pp. 511-528 : 517-518

Key to known species of the subgenus Galumna (Cosmogalumna)

1. Surface of prodorsum with longitudinal stria................................................................ 2

- Surface of prodorsum without longitudinal stria............................................................ 3

2. Notogaster with four pairs of porose areas (A2 present); surface of pteromorphs with reticulate pattern and weakly developed stria; genital and anal plates with microtubercles and short ribs; body size: 278–307 × 209–246.................................................................................. G. (C.) vladopesici sp. nov. Distribution: Philippines

- Notogaster with three pairs of porose areas (A2 absent); surface of pteromorphs without reticulate pattern and distinctly developed stria; genital and anal plates with longitudinal striae; body size: 298–315 × 232–265........................................................................ G. (C.) dongnaiensis Ermilov & Anichkin, 2013 . Distribution: Vietnam

3. Surface of prodorsum with reticulate pattern............................................................... 4

- Surface of prodorsum without reticulate pattern............................................................. 5

4. Rostrum bidentate; lamellar setae inserted between lamellar lines; genital and anal plates with granules; body size: 336 × 257........................................... .... G. (C.) hiroyoshii ( Nakamura & Fujikawa, 2004) . Distribution: Japan

- Rostrum rounded; lamellar setae inserted between lamellar and sublamellar lines; genital plates with longitudinal stria, anal plates with reticulate pattern; body size: 282–298 × 232–249....................................................

.............................................. G. (C.) tenensis Ermilov, Vu & Nguyen, 2011 . Distribution: Vietnam 5. Surface of pteromorphs and anal plates with reticulate pattern; median pore absent; body size: 310–325 × 255–270................................................................. G. (C.) yonaguniensis Aoki, 2009 . Distribution: Japan

- Surface of pteromorphs and anal plates without reticulate pattern; median pore present............................. 6

6. Surface of notogaster and anogenital region wholly covered by reticulate pattern; surface of prodorsum and pteromorphs with dense granules; genital plates with longitudinal stria (in medial part) and granules (in lateral part); body size: 317–342 × 256–270...................................................... G. (C.) ornata ( Aoki, 1988) . Distribution: Japan

- Surface of notogaster and anogenital region covered by transverse band of reticulation in middle part; surface of prodorsum and pteromorphs without granules; genital plates without longitudinal stria and granules; body size: 326–365 × 276–287.......... G. (C.) praeoccupata Subías, 2004 (= Cosmogalumna imperfecta Aoki & Hu, 1993 ). Distribution: south-eastern China