Revision of the status of some genus-level water mite taxa in the families Pionidae Thor, 1900, Aturidae Thor, 1900, and Nudomideopsidae Smith, 1990 (Acari: Hydrachnidiae)
Author
Smith, Ian M.
Author
Cook, David R.
Author
Gerecke, Reinhard
text
Zootaxa
2015
3919
1
111
156
journal article
10.11646/zootaxa.3919.1.6
4c40552e-e778-4d8e-a6b7-9662436cadc2
1175-5326
244587
F711CA99-1B2C-4E18-9F4B-7521D38D2303
Genus
Subaturus
Viets, 1916
Subaturus
:
Cook, 1974a
, pp. 362–363, figs. 1597, 1599, 1600,
1602–1604
.
Subaturus
:
K.O. Viets, 1987
, p. 718.
Diagnosis.
Larva
:
Unknown.
Adults
(modified from
Cook 1974a
): Idiosoma broadly elliptical in shape. Idiosomal sclerites with surfaces smooth or finely reticulate. Dorsal and ventral shields separate from one another. Dorsal shield bearing four pairs of glandularia, with one pair located near posterior end of shield; bearing three well-defined longitudinal ridges, including an unpaired medial ridge and one pair of lateral ridges; posterior region of shield with slight caudal development. Dorsal furrow lacking glandularia. Fourth coxal plate bearing coxoglandularium II and a second glandularium near posterior edge of plate, and with a moderately large projection associated with opening for insertion of fourth leg. Ventral shield with well-defined ridge extending anteriorly from projections associated with openings for insertions of fourth legs and ending in prominent projections that extend beyond edges of shield in region lateral to end of suture line between third and fourth coxal plates; posterior pair of glandularia apparently shifted onto fourth coxal plate (see above); unmodified posteriorly or with a small caudal projection. Genital field terminal and bearing ten to many pairs of acetabula; excretory pore incorporated into dorsal shield; acetabular plates extending laterally well beyond posterior angles of fourth coxal plates, incorporated into ventral shield with suture lines obliterated in males, adpressed to ventral shield with suture lines clearly delineated in females. First leg of males with tarsus bearing modified claws and second leg of males with tibia expanded ventrally and bearing thick setae; posterior legs with segments unmodified. Pedipalp with segments relatively short and stocky and with tibia lacking a ventral projection and bearing a sessile, slender setae distoventrally.
Type
species.
Aturus
(
Subaturus
)
sulcatus
Viets.
Species included.
Subaturus sulcatus
(Viets)
,
S. expansus
Cook
,
S. similis
Cook
, all from West Africa.
Distribution.
West Africa.
Discussion.
Cook (1974a)
considered
Subaturus
to be a distinct genus and we follow that treatment here.