Kaszabjbaloghia with the description of a new species from Ecuador ( Acari : Mesostigmata : Uropodidae )

Kaszabjbaloghia Hirschmann, 1973, distributed in South-America, is characterized by the following combination of characters: reduced marginal shield, posteromarginal setae placed on membranous cuticle on the dorsal idiosoma, linguliform genital shield in females, oval or egg-like genital shield bearing one pair needle-like setae in males, and the characteristic shape of peritremes. In this contribution, I provide short redescriptions of the known species of Kaszabjbaloghia and describe a new species, K. ecuadorica sp. nov., from Ecuador. The new species is similar to K. kaszabi Hirschmann, 1973, but differs from the latter in the ornamentation of genital shield of the female and the number of sternal cavities. Additionally, we transfer K. hirschmanni Hiramatsu, 1978 to Hutufeideria Hirschmann & Hirmatsu, 1977 (as Hutufeideria hirschmanni (Hiramatsu, 1978) comb. nov.) on the basis of the following: setation of dorsal shield, ornamentation of caudal part of the dorsal shield, shape of hypostomal setae, shape of internal malae and setation of the palp. An identification key to the species of Kaszabjbaloghia is also provided. Original illustrations and scanning micrographs are provided for all species.

posterior margin reach level of posterior margin of dorsal shield.Marginal setae can be found on small platelets on membranous cuticle.Female with linguliform genital shield, male with oval or egg-like genital shield bearing one pair of long setae.Peritreme with two characteristic forms, one type is tree-like, the other is hook-shaped with several branches.Tritosternum with narrow basis and trifurcated laciniae.Hypostomal setae h1 subdivided into three branches, central branch smooth, lateral branches with short hairs on their margins.Setae h2 short with serrated margin, h3 with Y-form apical part, h4 with short hairs on its apical part.Corniculi horn-like, internal malae long and with short hairs on their margins.Chelicerae with several teeth on digitus fixus and with some big teeth on digitus mobilis.Epistome serrated on basal part and with short hairs on its apical part.Palp trochanter with serrated setae, other setae smooth and simple.All setae of legs serrated or smooth, leg I without ambulacral claw.
Distribution.Central and South America.Systematic notes.HIRSCHMANN (1973a) placed this genus in the Uropodidae.Later, a new family, the Kaszabjbaloghiidae Hirschmann, 1979, was erected for it.The presence of several unique characters in this genus (e.g., shape of peritreme, setae on the genital shield of male, setae of palp trochanter and hypostome) supports HIRSCHMANN's (1979) concept of the Kaszabjbaloghiidae.Currently, the systematics of the Uropodina at family and genus levels has several problems, such as the lack of clear diagnoses.As revisions are needed for all included families, we have followed HIRSCHMANN's (1993) most recent classification, and treated Kaszabjbaloghia as a genus of Uropodidae.This treatment contrasts with VÁZQUEZ & KLOMPEN (2007), who treated this genus as Kaszabjbaloghiidae and mentioned several other families of HIRSCHMANN's (1979) system.However, the limits of several families and genera in HIRSCHMANN's (1979) system are very questionable.
Remarks.HIRAMATSU (1978) described a new Kaszabjbaloghia species from Australia, K. hirschmanni Hiramatsu, 1978. I have investigated HIRAMATSU's (1978) description and studied the syntypes that are deposited in the Soil Zoology Collections of the Hungarian Natural History Museum.Based on careful analysis, I have concluded that K. hirschmanni does not belong to Kaszabjbaloghia because it lacks the most important diagnostic characters of the genus (shape of peritreme, setae on male genital shield, etc.).I am convinced that this species belongs to Hutufeideria Hirschmann & Hiramatsu, 1977, so I propose a new combination Hutufeideria hirschmanni (Hiramatsu, 1978) comb.nov.My conclusions are based on the following characters: setation of dorsal shield, ornamentation of caudal part of dorsal shield, shape of hypostomal setae, shape of internal malae and setation of palp.
Short description.Dorsal shield with alveolar ornamentation.All dorsal and marginal setae phylliform.Well sclerotized ring can be found on caudal region of dorsal shield, posterior part of ring strongly more sclerotized than anterior part (Fig. 4).Peritreme tree-like (Fig. 6).Sternal and ventral shields without ornamentation, margins of sternal and ventral setae serrated.Female linguliform genital shield without anterior process and with maculate pattern on basal part (Fig. 5). Distribution.Peru.
Notes on Kaszabjbaloghia with the description of a new species from Ecuador ZOOLOGIA 27 (1): 138-145, February, 2010

Table I .
The most important differences between Kaszabjbaloghia kaszabi and K. ecuadorica.