Paratasmanicola inerma gen. et. sp. nov. from Tasmania (Hemiptera: Heteroptera: Rhyparochromidae)
Author
Malipatil, M. B.
Agriculture Victoria, AgriBio, 5 Ring Road, Bundoora, Victoria 3083, Australia & La Trobe University, Bundoora, Victoria 3083, Australia
Author
O’Donnell, J. E.
Department of Ecology and Evolutionary Biology, Unit- 3043, University of Connecticut, Storrs, Connecticut, 06269 - 3043, USA jane. odonnell @ uconn. edu
text
Zootaxa
2022
2022-05-25
5141
2
192
198
journal article
10.11646/zootaxa.5141.2.7
1175-5326
6581699
F4C76A13-B53C-47C9-9893-6FDD5317EE3E
Genus
Getes
Bergroth, 1916
—comparison with
Paratasmanicola
and tribal placement
The monotypic genus
Getes
with type-species
G. fusciceps
Bergroth
, was described by
Bergroth, 1916
, from
Tasmania
. The genus was placed in the subfamily
Rhyparochrominae
of the
Rhyparochromidae
, with uncertain tribal status (Slater 1964,
Cassis & Gross 2002
,
Dellapé & Henry 2022
). Bergroth noted this taxon was described based on material sent to him by Mr Charles French of Melbourne. It was thought that the
type
specimen might be deposited in Melbourne Museum where most of French’s specimens had been deposited, but attempts to locate this
type
by
Sweet (2008)
, and by the senior author during the present study have been unsuccessful.
Bergroth (1916)
stated this genus “does not seem to have any near ally among the described tropical genera, but is closely related to the Mediterranean genus
Hyalochilus
Fieb.
”. The latter genus was included in the
Stygnocorini
when
Sweet (1967)
discussed the tribal classification of the
Rhyparochrominae
. However,
Getes
differs from
Hyalochilus
in having shorter bucculae, the first antennal segment produced farther beyond the apex of the head, the second segment longer, the fourth segment not fusiform, the scutellum shorter, and the fore femur less slender (
Bergroth 1916
).
The new Tasmanian genus
Paratasmanicola
,
placed as a member of tribe
Stygnocorini
in this study, agrees with the description of
Getes
(
Bergroth 1916
)
in the following: body sub-ovate; antenniferous tubercles perpendicularly descending and ending slightly beneath the level of their lower angle; bucculae very short; pronotum trapeziform, about twice as broad as head, all margins straight, lateral margins only slightly carinate; corium with apical margin straight; and the fore femora only slightly more incrassate than the others and unarmed. On the other hand,
Paratasmanicola
differs from the description of the latter genus in the second segment of antenna less than twice as long as first; labium short, ending just before metathoracic sternum, basal segment reaching only to ½ the length of head and subequal to first antennal segment; pronotum without a distinct transverse impression; scutellum without raised smooth median line; claval commissure much shorter than scutellum length; and hind tibiae without a row of spinelike bristles beneath.
An attempt was made also in the present study to resolve the tribal placement uncertainty of the genus
Getes
within subfamily
Rhyparochrominae
. Unfortunately, from Bergroth’s description alone, without the availability of
type
specimen for examination, it has not been possible to ascertain several of the important characters of the tribe, particularly the position of spiracles on abdominal segments, and the placement of posterior pair of trichobothria on abdominal sternum
5 in
relation to each other, as well as to spiracle and posterior margin of segment 5, the presence of inner laterotergites on abdominal segments 3-6, and the structures of the aedeagus such as holding sclerites and the helicoid process (
Slater & Sweet 1970
,
Sweet 1967
). Until the
type
is found and these characters can be assessed, we do not feel it is appropriate to formally move
Getes
into the
Stygnocorini
despite its superficial similarity in some respects to
Paratasmanicola
. In addition, even though
Bergroth (1916)
suggested an affinity between
Getes
and
Hyalochilus
, that resemblance might also be superficial and not supported by characters important in establishing tribal relationships. The spiracle positions and inner laterotergite configurations need to be critically examined both across genera within the
Stygnocorini
and among representatives of the related tribe
Ozophorini
, as some of these characters seem not to be consistent even within the
Stygnocorini
..