Phylogeny and systematics of the Arrupinae (Chilopoda Geophilomorpha Mecistocephalidae) with the description of a new dwarfed species
Author
FODDAI, DONATELLA
Author
BONATO, LUCIO
Author
PEREIRA, LUIS ALBERTO
Author
MINELLI, ALESSANDRO
text
Journal of Natural History
2003
2003-05-31
37
10
1247
1267
http://www.tandfonline.com/doi/abs/10.1080/00222930210121672
journal article
10.1080/00222930210121672
1464-5262
5260062
7569918C-40EF-4793-93CA-A3093FD8FEEB
Genus
Agnostrup
n. g.
Type
species
.
Agnostrup striganovae
(Titova, 1975)
, by present designation.
Species included
.
Agnostrup striatus
(Takakuwa, 1949)
(from
Taiwanella
);
Agnostrup paucipes
(Miyosi, 1955)
(from
Taiwanella
);
Agnostrup striganovae
(Titova, 1975)
(from
Krateraspis
)
Etymology
. The genus name refers to the forgotten status of the three species since their description, from the Greek word ‘
agnostos
’, referring to their status, and
Arrup
, pointing to the affinities of the genus to
Arrup
.
Diagnosis
. Forty-one pairs of legs. Body colour homogenous, without darker patches. Body length
ca
20–35 mm
. Ratio of length to width of cephalic plate
ca
1.3–1.5. Frontal line present. Two clypeal plagulae separated by a mid-longitudinal stripe. Plagulae covering slightly less than one-half of the clypeus, laterally in contact with the paraclypeal sutures. Clypeal setae arranged in a transversal band on the anterior part of the plagulae and on a medial part of the areolate clypeus. Buccae without setae. Spiculum absent. Side-pieces of labrum fully divided into anterior and posterior alae. Internal margin of each anterior ala reduced to a point. Posterior alae with or without longitudinal stripes. Posterior margin of labrum not hairy. Mandible provided with
ca
five or six pectinate lamellae. Coxosternum of the first maxillae divided in the middle. Coxosternum of the second maxillae undivided. Metameric pores placed in posterior position. Telopodites of the second maxillae slightly overreaching those of the first maxillae. Claws of second maxillae absent. Forcipular trochanteropraefemur with one well-developed distal tooth pointing forward. Intermediate articles of forcipules with or without teeth. Basal tooth of tarsungulum well developed and similar in size to that of the trochanteropraefemur. Forcipular tergum without median sulcus. Sternal rhachides not anteriorly furcate. Last sternum subtriangular, longer than wide. At least
ca
20 pores on the ventral surface of each coxopleuron. Anal pores present.
Geographic distribution
. East
Russia
, north-east
China
,
Japan
: Honshu Id.
Remarks
. In a recent paper (Bonato
et al
., submitted) we suggested that the three species currently known as
Taiwanella striata
Takakuwa, 1949
,
Taiwanella paucipes
Miyosi, 1955
and
Krateraspis striganovae
Titova, 1975
are closely related one to the other but do not actually belong to the genera where they are currently included. In that paper we referred them provisionally to a genus-level ‘taxon…x’. In the present analysis these three species did actually branch together. Hence we establish here for them the new genus
Agnostrup
, as diagnosed above. Three
new combinations
are consequently proposed:
Agnostrup striatus
(Takakuwa, 1949)
for
Taiwanella striata
Takakuwa, 1949
,
Agnostrup paucipes
(Miyosi, 1955)
for
Taiwanella paucipes
Miyosi, 1955
and
Agnostrup striganovae
(Titova, 1975)
for
Krateraspis striganovae
Titova, 1975
.
The
type
material of the species
Agnostrup striatus
(Takakuwa, 1949)
and
Agnostrup paucipes
(Miyosi, 1955)
is not available and probably lost. It is not present in any of the following collections: National Science Museum of
Tokyo
,
Tottori
University (
Tottori
,
Japan
), National Museum of Natural Science (Taiwan), Dokkyo University (Mibu,
Tochigi
,
Japan
). Of
Agnostrup striganovae
(Titova, 1975)
, preserved in the private collection of the author (Titova), we could study two topotypic specimens: we ignore however whether they belong to the
type
series or not.