Traegaardhia paralleloseta ( Zacharda, 1985 ) Zacharda & Fong & Hobbs Iii & Piva & Slay & Taylor, 2010

Zacharda, Miloslav, Fong, Daniel, Hobbs Iii, Horton H., Piva, Erminio, Slay, Michael E. & Taylor, Steven J., 2010, 2474, Zootaxa 2474, pp. 1-64 : 50-52

Traegaardhia paralleloseta ( Zacharda, 1985) , new combination ( Fig 36)

Foveacheles (Trofocheles) paralleloseta Zacharda, 1985 , Vĕstník Č eskoslovenské Spole č nosti Zoologické, 49, 77–78. Material examined

Holotype: adult female, Virginia, Wythe Co., 4 mi. W of Wythewille, Sam Six Cave, coll. J. Holsinger, 25.8.1967, deposited in the Museum of Biological Diversity , Ohio State University, Type No. OSAL0007384.

Diagnosis

Cheliceral movable digit finely serrate along masticatory surface. Proximal cheliceral seta inserted at level of articulation of movable digit; tip of proximal seta does not reach insertion of distal seta. Palpal tarsus shorter than femorogenu, with ten pubescent setae. Coxae I, II, III, IV with 3-1-6-3 setae. Rhagidial organ I comprised of four long and slender rhagidial solenidia (ω) lying almost parallel in separate depressions; stellate famulus (ε) subtending second proximal rhagidial solenidion; rhagidial organ II comprised of three rhagidial solenidia lying obliquely in separate parallel depressions; small spiniform famulus (ε) subtending proximal rhagidial solenidion. Long, recumbent, dorsodistal solenidion (Φ) on tibiae I and II parallel to rhagidial and lanceolate solenidion, respectively; dorsoproximal solenidia on tibia III recumbent, parallel, resembling small rhagidial solenidia.

Affinities

See in section on T. holsingeri , above.

In the representatives of the genus Traegaardhia two attenuated recumbent dorsodistal solenidia on tibiae I are not only in T. paralleloseta n. sp., but also in T. cavernarum n. sp.. However, T. cavernarum n. sp. differs from T. paralleloseta in the morphology of chelicera, rhagidial organs, placement of solenidia on the leg segments, etc.

Description For the original description see Zacharda (1985): 77.

Remarks

The mite was placed into the genus Traegaardhia because of the morphology of chelicerae. The strikingly elongated and attenuated rhagidial solenidia in rhagidial organs I and II, the elongated and attenuated recumbent dorsodistal solenidia on the tibiae I and II, the enlarged dorsodistal lanceolate solenidion protruding from the depression with the broadly open surface pore, all indicate that T. paralleloseta is a troglobiont. Hitherto only one specimen of this species has been collected in the one and only cave in Virginia ( Fig. 1B).