Eatoniana Cambridge, 1898

Mąkol, Joanna & Sevsay, Sevgi, 2015, Abalakeus Southcott, 1994 is a junior synonym of “ plume-footed ” Eatoniana Cambridge, 1898 (Trombidiformes, Erythraeidae) — evidence from experimental rearing, Zootaxa 3918 (1), pp. 92-112 : 93

Eatoniana Cambridge, 1898

Abalakeus Southcott, 1994 , syn. nov.

Type species. Eatonia scopulifera Cambridge, 1897 , by subsequent designation ( Southcott 1961) [the information given by Southcott (1961: 486) who stated that E. scopulifera was the type species “by original designation” is erroneous, since Cambridge (1897) did not specify the type species, and thus Southcott becomes the type species designator]

Diagnosis. Adult and deutonymph (after Southcott 1961, updated). Two eyes on each side of prodorsum. Crista metopica composed of two sensillary areas connected by a rod. Dorsal idiosomal setae (pDS) uniform, relatively robust, leaf-like when flattened or pDS club-shaped ( E. clavigera only, see Discussion) and of variable length. Smooth, spine-like setae (different to conalae) may be present along ventral line of palp tibia. Distinctly elongate, plume-like setae arise at genu and tibia or tibia of leg IV, or setae on leg IV similar to those covering other leg segments ( E. lorestanicus only). See also Figures 2–20 ( E. plumipes ) and 29–34 ( Eatoniana sp.).

Larva (after Southcott 1994, updated). Two eyes on each side of prodorsum. Scutum circular to oval in outline, with two pairs of trichobothria and two pairs of non-sensillary setae. Palp femur and palp genu, each with one seta. Odontus bifurcate at termination. Tarsi I-III terminated with paired claws and claw-like empodium. ƒ n Cx = 1-1-1, ƒ n bFe = 2-2-1, ƒ n tFe = 5(optionally +1ρ)-5-5. See also Figures 21–28 ( E. plumipes ).

Distribution. Palaearctic ( Algeria, Armenia, China, Egypt, France, Greece, Iran, Great Britain, Spain, Switzerland, Tunisia, Turkey –new and Turkmenistan); African ( Mauritania, Niger, South Africa) and Neotropical ( Argentina) regions.

Figures

FIGURES 1 – 2. 1, Habitat of Eatoniana plumipes (Dumlu, Erzurum prov., Turkey). 2, Habitus, female (not to scale).

FIGURES 3 – 6. Eatoniana plumipes. Adult, female. 3. Palp, medial aspect. 4. Crista metopica; A—socket of broken ASens. 5. Position of eye in relation to crista metopica (not to scale). 6. Dorsal seta.

FIGURES 7 – 8. Eatoniana plumipes. Adult, female. 7. Genital region. 8. Anal valves.

FIGURES 9 – 18. Eatoniana plumipes. Adult, female. 9. Normal seta on trochanter IV. 10. Normal seta on genu IV. 11. Genu – tarsus IV. 12. Normal, distinctly elongate seta on tibia IV. 13. Needle-like seta on basifemur I. 14. Backward curved seta. 15. Spinala on genu I. 16. Club-shaped seta on tibia I. 17. Spine-like solenidion on tarsus I. 18. Slender solenidion on tarsus I.

FIGURES 19 – 22. Eatoniana plumipes. Deutonymph and larva. 19. Deutonymph. Palp medial aspect (variation in the shape of spine-like setae shown) 20. Crista metopica. 21. Larva. Mouth. 22. Larva. Palp. Lateral aspect.

FIGURES 23 – 24. Eatoniana plumipes. Larva. 23. Dorsal view (legs omitted beyond trochanter). 24. Ventral view (legs omitted beyond trochanter).

FIGURES 25 – 28. Eatoniana plumipes. Larva. 25. Leg I (trochanter—tarsus). 26. Tarsus I. 27. Leg II (trochanter—tarsus). 28. Leg III (trochanter—tarsus).