Galumnidae, Jacot, 1925

Tang, Jin, Zhang, Gongaote, Guo, Junqi, Luo, Lingxuan, Jiang, Jiamei & Pan, Hongbo, 2023, New Faunistic And Taxonomic Data On Oribatid Mites (Acari: Oribatida) Of Thailand, Acta Zoologica Academiae Scientiarum Hungaricae 69 (2), pp. 93-116 : 100-103

Family Galumnidae

Genus Galumna Heyden, 1826 Subgenus Galumna (Galumna) Heyden, 1826

Type species: Notaspis alatus Hermann, 1804

Galumna (Galumna) paracalcicola Ermilov et Anichkin, 2014

( Figs 3 , 4 )

Remarks – Galumna paracalcicola was described by ERMILOV and AN- ICHKIN (2014с) from Southern Vietnam. Specimens of this species from Thailand are morphologically similar in all main morphological traits, e.g.: rostrum rounded; lamellar line nearly straight, without developed distal part; rostral, lamellar and interlamellar setae long, ro shortest, in longest, ro and le slightly barbed, in smooth; bothridial seta long, with lanceolate head; dorsosejugal suture and porose present; four pairs of rounded/oval notogastral porose areas; median pore present; lyrifissure im located close and anteriorly to porose area A1; epimeral and anogenital setae comparatively short; epimeral setal formula: 1–0–1–2; circumpedal carina short, distinctly not reaching insertion of seta 3b; aggenital seta located between genital and anal apertures; postanal porose area present, rounded; leg claws smooth.

pteromorph). Scale bar: 100 μm

However, there are some morphological differences between the Thai and Vietnamese specimens: (a) Thai specimens larger than Vietnamese specimens (body length: 443–450 versus 398–415); (b) head of bothridial seta in Thai specimens has short apical spike versus head distally narrowed but without distal spike in Vietnamese specimens; (c) epimeral setae in Thai specimens is 6–8 micrometers longer than those in Vietnamese specimens. We believe these antiaxial view. Scale bars: 100 μm (A), 50 μm (B–E)

differences represent intraspecific variability, therefore, listed above traits must be used when identifying G. paracalcicola in the future.

Figures

Fig. 3. Galumna paracalcicola Ermilov et Anichkin, 2014, adult (not shown: legs): A = dorsal view; B = ventral view (not shown: right pteromorph); C = right lateral view (not shown:

Fig. 4. Galumna paracalcicola Ermilov et Anichkin, 2014, adult: A = posterior view; B = leg I (not shown: trochanter), right, antiaxial view; C = leg II (not shown: trochanter and tarsus), right, antiaxial view; D = leg III (not shown: tarsus), left, antiaxial view; E = leg IV, left,