Two new species of crane fly (Diptera: Limoniidae) from Tasmania, Australia
Author
Billingham, Zacariah D.
0000-0002-6163-9073
Department of Ecology, Environment & Evolution, La Trobe University, Bundoora, Vic 3086, Australia.
zac.billingham@ghd.com
Author
Theischinger, Gunther
0000-0002-5207-2626
Australian Museum, Entomology, 6 College Street, Sydney, NSW 2010, Australia. & theischingergunther @ gmail. com; http: // orcid. org / 0000 - 0002 - 5207 - 2626
theischingergunther@gmail.com
Author
Levesque-Beaudin, Valerie
0000-0002-6053-0949
Centre for Biodiversity Genomics, University of Guelph, 50 Stone Road East, Guelph, N 1 G 2 W 1, Canada. & valerie @ uoguelph. ca; http: // orcid. org / 0000 - 0002 - 6053 - 0949
valerie@uoguelph.ca
text
Zootaxa
2023
2023-03-16
5256
1
77
83
journal article
10.11646/zootaxa.5256.1.5
2b494cd3-9f53-4fb1-bf72-e9ac881b8be4
1175-5326
7752370
Gynoplistia
(
Gynoplistia
)
lutruwita
Billingham & Theischinger
sp. nov.
(
Figs 1–5
)
http://zoobank.org/
urn:lsid:zoobank.org:act:
C4FE5C99-D3A1-4AC1-8EEC-DE70E3A0CC92
Type material.
HOLOTYPE
male,
Australia
,
Tasmania
,
Huon Valley
,
Warra
long term ecological research site (-
43.095°S
,
146.654°E
),
18 Nov 2014
,
Tim Wardlaw
,
AM
(K.394951;
BOLD
Process ID
:
GMATO017-16
), BIN ADC4645
.
PARATYPES
:
2 males
, same data as holotype,
BIOUG
(
GMATO019-16
,
GMATO361-16
), BIN same as holotype
.
Diagnosis. A deep reddish-brown species with polished sheen. Wing heavily patterned with dark grey to brown. Male hypopygium with gonocoxite bearing basal thumb-shaped medio-ventral process and strongly developed dorsal lobe; outer gonostylus thin and bluntly tipped, inner gonostylus broad, fleshy; aedeagal complex on each side with a single lateral element, strongly curved dorsad.
FIGURES 1–5.
Gynoplistia
(
Gynoplistia
)
lutruwita
Billingham & Theischinger
sp. nov.
, male. 1. wing; 2. hypopygium, dorsal view; 3. hypopygium, ventral view; 4. aedeagal complex, dorsal view; 5. aedeagal complex, lateral view.
Description. Male. Body length
7.9 mm
, wing length
8.2 mm
, antenna missing.
Head
. Head dark brown, palpus greyish brown.
Thorax
. Dorsal thorax and pleuron deep reddish brown with polished sheen. Legs with coxae dark brown, trochanters yellowish brown, remainder of legs missing.
Wing
(
Fig 1
). With extensive dark patterning; costal and subcostal cells dark brown; stigma dark brown; three dark brown marks present: just distal to MA, extending from R to Cu; at origin of Rs, roughly quadrate, extending from R to M; and at the fork of Rs, encompassing the stigma and extending to the base of the discal medial cell. Paler brownish grey markings in the distal 1/3 of r
3
, along the margins of the discal medial cell, along m-cu, through much of the anterior cubital cell and at 2/3 and 1/2 the length of CuP and A
1
respectively.Apex and posterior margin lightly infuscate, apex especially so. Venation: Sc
1
long, extending to the fork of Rs, Sc
2
at its tip; Rs in direct alignment with the short R
2+3+4
; R
2+3
and R
3
approximately equal in length; R
4
approximately 1 1/3 times the length of Rs; base of R
5
perpendicular to Rs, approximately 2 1/2 times the length of R
2+3+4
, beyond r-m running parallel to R
4
; m-cu situated at approximately half the length of the discal medial cell; cell m
1
present, a little longer than its petiole; A
1
sinuous at about midlength. Halter yellowish white.
Abdomen
. Dark reddish brown.
Hypopygium
(
Figs. 2–5
). Hypopygium deep reddish brown. Posterior margin of tergite 9 with broad and wide Ushaped excision (
Fig. 2
). Ventral part of tergite broadly concave (
Fig. 3
). Gonocoxite large, with basal thumb-shaped medio-ventral process, about 1/4 the length of the gonocoxite (
Fig. 3
); dorsomedial surface weakly sclerotised, almost membranous; dorsal lobe strongly developed, produced to a blunt tip, approximately 1/2 the length of the outer gonostylus (
Fig. 2
). Outer gonostylus a thin, gently curved rod, apex narrowing to a blunt tip. Inner gonostylus broad, fleshy, lobate, moderately setose, about 2/3 the length of the outer gonostylus. Aedeagal complex on each side with a single lateral element, strongly curved dorsad and sharply pointed, approximately 2/3 the length of the aedeagus (
Fig. 4
). Aedeagus gently curved dorsad from midlength, not extending beyond the tip of the medioventral process of the gonocoxite (
Fig. 5
).
Female. Not studied.
Etymology. Lutruwita is the most widely accepted indigenous name for
Tasmania
and is given to this species in reference to its distribution and in recognition of the indigenous heritage of
Tasmania
.
Remarks. The strongly developed and pointed dorsal lobe of the gonocoxite readily distinguishes
G.
(
G.
)
lutruwita
Billingham & Theischinger
sp. nov.
from most Australian species of
Gynoplistia
. While a developed dorsal lobe is present in several species it is often short or rounded and
G.
(
G.
)
bickeli
Theischinger, 1993
is the only other Australian species known to have a long, pointed dorsal lobe.
Gynoplistia
(
G.
)
lutruwita
is distinguished from
G.
(
G.
)
bickeli
by the presence of a medio-ventral process on the base of the gonocoxite and by the simple, lobate inner gonostylus, which is bifid in
G.
(
G.
)
bickeli
.