First record of the order Polyzoniida from the Indian subcontinent with an integrative description of a new genus (Diplopoda, Colobognatha, Siphonotidae)
Author
Anilkumar, Pooja Avinipully
Leibniz Institute for the Analysis of Biodiversity Change, Zoological Research Museum Alexander Koenig, Bonn, Germany.
Author
Wesener, Thomas
0000-0002-2028-3541
Leibniz Institute for the Analysis of Biodiversity Change, Zoological Research Museum Alexander Koenig, Bonn, Germany. & T. Wesener @ leibniz-lib. de; https: // orcid. org / 0000 - 0002 - 2028 - 3541
esener@leibniz-lib.de
Author
Moritz, Leif
0000-0002-6028-5189
Leibniz Institute for the Analysis of Biodiversity Change, Zoological Research Museum Alexander Koenig, Bonn, Germany. & Institute of Evolutionary Biology and Animal Ecology, University of Bonn, Bonn, Germany. & moritz. leif @ gmail. com; https: // orcid. org / 0000 - 0002 - 6028 - 5189
moritz.leif@gmail.com
text
Zootaxa
2022
2022-09-08
5182
5
401
428
journal article
138998
10.11646/zootaxa.5182.5.1
1b35fb1e-b051-429f-87fe-079aac9196ae
1175-5326
7059565
E70EB74A-DC7E-482D-AE4D-D58FB3CD4F5A
Genus
Theratta
n. gen.
Anilkumar, Wesener & Moritz
Type
species:
Theratta mannavan
n. sp.
Anilkumar, Wesener & Moritz
Other species included:
Theratta eravikulam
n. sp.
and
Theratta shola
n. sp.
Diagnosis.
Habitus, size and coloration of
Theratta
species
resemble those of the widespread introduced tramp species
Rhinotus purpureus
. Distinguished from the three other genera of the tribe
Rhinotini
by the bifurcation of the podomere II of anterior gonopod into a mesal process on the posterior side, with a furrow between the mesal process and the main part of the podomere II (
Figs 5D–F
); modification of the anterior side of anterior gonopod into a lamellar process (
Fig. 6C
); absence of conical elevations on the sternite of the posterior gonopod (
Figs 6I, J
), as found in the genera
Rhinotus
(see Wesener 2014) and
Siphonoconus
(see
Attems 1931
). Eyes consisting of a single pair of ommatidia (
Fig. 3A
); head with a pair of macrosetae anterior to the ommatidia (
Figs 2B
,
3A
); tarsal claw with a thin paronychium extending beyond the claw, curved and bulged distally (
Fig. 4F
); tergites with groove-like striae; anterior margin of metazonites with a distinct row of striae (
Fig. 4A
); lateral margin of the pleurite covered with setae (
Fig. 3H
).
Etymology.
Genus epithet,
Theratta
, noun, feminine. Millipedes are called ‘
Theratta
’ in Malayalam, the language spoken in the Indian province (
Kerala
) of the
type
species.