New species of Uropodina from Madagascar (Acari: Mesostigmata)
Author
Kontschán, Jenő
Author
Starý, Josef
text
Zootaxa
2014
3895
4
547
569
journal article
10.11646/zootaxa.3895.4.5
f529679a-6785-437a-9f85-368aa2acb5b7
1175-5326
231408
3B26216E-84B7-4B7A-AAD8-B292E9486FA2
Malagana
gen. nov.
Type
species.
Malagana rotunda
sp. nov.
Diagnosis.
Idiosoma circular, dorsal shield anteriorly fused to marginal shield. Dorsal setae pilose, some setae on anterior margins robust and bifurcated. Genital shield of female linguliform, genital shield of male small and circular. Seven pairs of sternal setae in females and eight in male, all short and needle-like. Majority of ventral setae situated near caudal part of pedofossae IV, where a strongly sclerotised area presented. Hypostomal setae h1 smooth and long, h2‒4 serrate. Corniculi horn-like, internal malae smooth and longer than corniculi. Chelicerae with internal sclerotised node, movable digit shorter than fixed digit. Leg I with a small claw.
Etymology.
The name of the new genus refers to the earlier name of the country,
Malagasy Republic
. Gender: Feminine.
Remarks.
The new genus belongs to the family
Urodinychidae
, as used by
Mašán (2001)
and
Beaulieu
et al
. (2011)
, which differs from
Dinychidae
by the presence (
Urodinychidae
) or absence (
Dinychidae
) of pedofossae (Kontschán, 2013). On the basis of the number of sternal setae, the presence of internal sclerotised nodes in the chelicerae, and the shape of seta h1, this new genus is closely related to the very large genus
Uroobovella
(differences summarised in
Table 1
).
TABLE 1.
Distinguishing characters between
Uroobovella
Berlese, 1903
and
Malagana
gen. nov.
Uroobovella Malagana
Shape
of idiosoma oval circular
Dorsal shield setae needle-like pilose
Robust bifurcate setae on anterior margins of dorsal shield absent present
Strongly sclerotised area near end of pedofossae IV absent present
Shape of majority of ventral setae needle-like robust and pilose Shape of adanal and postanal setae needle-like pilose
Surface on dorsal and marginal shield mostly smooth covered by oval pits