A rich fauna of subterranean short-range endemic Anillini (Coleoptera, Carabidae, Trechinae) from semi-arid regions of Western Australia
Author
Giachino, Pier Mauro
https://orcid.org/0000-0002-1167-5447
World Biodiversity Association onlus. Private: via della Trinita 13, I- 10010 San Martino Canavese (TO), Italy
p.maurogiachino@libero.it
Author
Eberhard, Stefan
Subterranean Ecology Pty Ltd, 227 Coningham Road, Coningham, TAS 7054, Australia
Author
Perina, Giulia
https://orcid.org/0000-0002-0349-3803
Collections and Research, Western Australian Museum, 49 Kew Street, Welshpool, WA 6106, Australia
text
ZooKeys
2021
2021-06-16
1044
269
337
http://dx.doi.org/10.3897/zookeys.1044.58844
journal article
http://dx.doi.org/10.3897/zookeys.1044.58844
1313-2970-1044-269
DE81899437314028BBE9C53C4CE220AC
8EC99E5110F45866A56F56BA7EA3D3AB
Magnanillus salomonis
sp. nov.
Figs 21-23
Type locality.
WA, Pilbara, 50 km N of Tom Price, Solomon Mining Area, Kings deposit,
22°12'00.8"S
,
117°57'16.71E
.
Type series.
HT ♂, WA, Pilbara, 50 km N of Tom Price, Solomon Mining Area, Kings mine,
22°12'00.8"S
,
117°57'16.71E
(WGS84), E.S. Volschenk, N. Krawczyk, 01.March 2010, Trog. trap (FMG005_SM0282_10:8313), WA Museum Entomology Reg. no. 82609 (WAM). PTT: 1 ♂ (remains) 6 ♀♀ and 3 spec. (♂♀?),WA, Pilbara, 60 km NW of Tom Price, Solomon Mining Area, Serenity mine,
22°11'9.24"S
,
117°32'49.524E
(WGS84), N. Coen, S. Catomore, 20.04.2011, Stygo net haul (FMG008_SOM0039_11:0879 Western Australian Museum Entomology Reg. no. 82641-82650 (WAM, CGi); 1 ♀, WA, Pilbara, 50 km N of Tom Price, Solomon Mining Area, Firetail Mine,
22°07'32.2"S
,
117°29'34.6"E
(WGS84), G. Pearson and D. Main, 13"Sept 2010, Stygo. net haul (HPRC0211) Western Australian Museum Entomology Reg. no. 82664 (WAM); 1 ♂ 1 ♀ (remains) 1 spec. (remains), WA, Pilbara, 50 km N of Tom Price, Solomon Mining Area, Firetail Mine,
22°06'44.2"S
,
117°53'28.8"E
(WGS84), G. Pearson and D. Main, 3 Mar. 2010, Trog. trap (FT0541) Western Australian Museum Entomology Reg. no. 82654-82656 (WAM); 1 ♀ (remains), WA, Pilbara, 60 km NW of Tom Price, Solomon Mining Area, Sheila Valley,
22°12'00.39"S
,
117°42'14.52E
(WGS84), M. Weerheim, S. Catomore, 9 Dec. 2010, Trog. net scrape, (FMG006_SV0267_10:0955), Western Australian Museum Entomology Reg. no. 82613 (WAM); 1 spec. (remains), WA, Pilbara, 60 km NW of Tom Price, Solomon Mining Area, Sheila Valley,
22°14'45.59"S
,
117°38'46.71E
(WGS84), S. Eberhard, S. Catomore, 05 Oct. 2010, Stygo net haul. (FMG006_SV0443_10:0490), Western Australian Museum Entomology Reg. no. 82614 (WAM).
Differential diagnosis.
Magnanillus salomonis
sp. nov. is easily distinguishable from
M. firetailianus
sp. nov. by its protonum with basal border ca. as wide as the anterior border. It can be distinguished from
M. sabae
sp. nov. by its longer metatrochanters, reaching the femoral tooth. It can be distinguished from
M. serenitatis
sp. nov. by its shorter metatrochanters, not overreaching the femoral tooth. It can be distinguished from
M. regalis
sp. nov. by its more transverse pronotum, and the clearly curved apex of the metatrochanters. It can be distinguished from
M. benneti
(Baehr & Main, 2016),
M. pearsoni
(Baehr & Main, 2016),
M. maini
(Baehr & Main, 2016),
M. magnus
(Baehr & Main, 2016) and
M. quartermaini
(Baehr & Main, 2016) by its more transverse pronotum.
Description.
TL mm 2.20-2.22 ♂♂, 2.25-2.28 ♀♀.
Body
elongated, depigmented, testaceous; integument shiny with evident microsculpture and very short pubescence.
Head
relatively small, narrower than pronotum; excess setae absent. Labium without tooth, mentum articulated. Antennae robust, submoniliform, short, reaching the base of the pronotum when stretched backwards. Fronto-clypeal furrow indistinct; anterior margin of the epistome subrectilinear.
Pronotum
transverse (max. width / max. length ratio = 1.16), with maximum width at the base of the anterior fourth, and basal border wider than anterior border; sides slightly and irregularly arcuate in anterior part, subrectilinear in the basal half, not sinuate and denticulate before basal angles. Anterior angles obtuse, slightly prominent; posterior angles right, acute. Disc convex, with short and very sparse pubescence; median groove very shallow, hardly evident. Marginal groove wide and flat, enlarged near the base; anterior marginal setae placed inside the marginal groove, almost on the anterior fourth; basal setae slightly located internally on the disk and placed before the posterior angles.
Legs
long and slender, with metatrochanters long, acuminate, and gently curved and metafemora dentate; metatrochanters (Fig.
22
) as long as the femoral tooth. Anterior legs missing in all male specimens.
Elytra
subrectangular, relatively short (max. length / max. width ratio = 1.69), not truncate and not emarginated before the apex. Disc convex, with longitudinal grooves; integument shiny with evident microsculpture, very short, sparse, and upright, pubescence, not longitudinally aligned. Humeri well marked, obtuse; post-humeral margin denticulate, with distinct crenulations up to the base of the apical third; elytral apices separately rounded. Marginal groove wide and evident almost up to the 8th pore of the umbilicate series.
Chaetotaxy
: scutellar pore large and foveate. Umbilicate series with the first three pores of the humeral group very closed to each other and equidistant; 4th pore farther and placed at the end of the basal third of the elytron; 5th pore placed at the base of the apical third of the elytron; 5th and 6th ones spaced out ca. half of the distance between 6th and 7th; 7th and 8th displaced onto the disc; 7th and 8th spaced from each other as the 8th and the 9th. Three discal setae, first placed before the 4th pore of the umbilicate series, second one placed in the middle of the elytron, the third one placed before the 7th pore.
Aedeagus
(Fig.
23
) large, median lobe long, stout, gently curved, with basal bulb small but tight and evident; ventral margin gently curved from basal bulb to apex; apical blade poorly evident, very short. Endophallus without an evident lamella copulatrix, but with two very small, apical, and slightly sclerified, ovoidal areas. Left paramere elongate, reaching the distal third and bearing two setae; right paramere shorter and bearing two apical setae.
Etymology.
The name comes from type locality "Solomon mining area" and the mythological King of Solomon (in Latin
Salomon
).
Distribution.
Magnanillus salomonis
sp. nov. is known from different deposits of the Solomon Mining Area, 50-60 km N/NW of Tom Price, Pilbara, WA.
Figures 21-23.
Magnanillus salomonis
sp. nov., HT ♂
21
habitus
22
left metafemur and metatrochanter in dorsal view
23
aedeagus in lateral view. Scale bars: 0.1 mm.