Kimberleytyphlus carrboydianus, Giachino & Eberhard & Perina, 2021

Giachino, Pier Mauro, Eberhard, Stefan & Perina, Giulia, 2021, A rich fauna of subterranean short-range endemic Anillini (Coleoptera, Carabidae, Trechinae) from semi-arid regions of Western Australia, ZooKeys 1044, pp. 269-337 : 269

Kimberleytyphlus carrboydianus sp. nov. Figs 34-35

Type locality.

WA, Kimberley, Carr-Boyd Ranges, 530 km SE Darwin, 16°37'26.02"S, 128°15'32.36"E.

Type series.

HT ♂, WA, Carr-Boyd Ranges, 530 km SE Darwin, Kimberley, WA, 16°37'26.02"S, 128°15'32.36"E (WGS84), Animal Plant Mineral (APM), 12 August 2009, Trog. net scrape (APM-KMGTROG 7-LN7274), Western Australian Museum Entomology Reg. no. 82632 (WAM). PTT: 1 ♂, WA, Kimberley, Carr-Boyd Ranges, 530 km SE Darwin, 16°37'52.59"S, 128°15'32.83"E (WGS84), Animal Plant Mineral (APM), 12 Aug. 2009, Trog. net scrape (APM-KMGTROG 8-LN7276), Western Australian Museum Entomology Reg. no. 82633 (CGi).

Diagnosis.

Species identified by the characters listed in the genus diagnosis.

Description.

TL mm 1.57-1.59 ♂♂. Body elongate, depigmented, testaceous; integument with medium length pubescence. Microsculpture evident and very strong: composed by isodiametric meshes on pronotal disc; scaly on basal part of elytral disc, and longitudinally oriented hollow points on apical elytral disc (Fig. 34 ).

Head large, slightly narrower than pronotum; without excess setae. Labium without tooth, mentum articulated. Antennae robust, moniliform, short, reaching the base of the pronotum when stretched backwards. Fronto-clypeal furrow indistinct; anterior margin of the epistome subrectilinear.

Pronotum trapezoidal (max. width / max. length ratio = 1.00), maximum width at the base of the anterior fourth, with basal border narrower than anterior border; sides subrectilinear, anteriorly slightly but regularly arcuate, not arcuate and not sinuate at the basal half, denticulated at the basal third. Anterior angles obtuse, rounded and not prominent; posterior angles obtuse, but evident. Disc convex, with sparse pubescence of medium length; 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 not on the disk and placed at posterior angles.

Legs long and slender, with metatrochanters normal and metafemora unarmed. Two poorly dilated protarsomeres, without adhesive phanerae in males.

Elytra subrectangular, very elongated (max. length / max. width ratio = 2.20), maximum width at the base of the posterior third, not truncated and slightly emarginated before apex. Disc convex, without longitudinal grooves; integument with sparse and upright pubescence, longitudinally aligned. Humeri well marked; post-humeral margin denticulate, with distinct crenulations up to the 8th and 9th pores of the umbilicate series; elytral apices separately rounded. Marginal groove wide and evident almost up to the 9th pore of the umbilicate series.

Chaetotaxy: scutellar pore small and foveate. Umbilicate series with the first three pores of the humeral group very closed to each other and nearly equidistant; 4th pore farther and placed at the end of the basal third of the elytron; 5th pore placed just after the middle of the elytron; 5th and 6th ones spaced out ca. 1/4 of the distance between 6th and 7th; 7th and 9th placed onto the disc; 7th and 8th spaced out ca. double of the distance from 8th and 9th; 9th placed at the level of the 8th pore. Three discal setae, first placed at the level of the 2nd pore of the umbilicate series, second one placed at the level of the base of the posterior fourth of elytron, third one placed just before the level of the 9th pore.

Aedeagus (Fig. 35 ) relatively small, median lobe long, slender, subrectilinear, with basal bulb tight and evident; ventral margin weakly curved from basal bulb to apex; apical blade evident, but short. Endophallus without any sclerified phanerae. Left paramere very elongated, reaching the distal fifth of the median lobe, and bearing only one seta; right paramere shorter than left one, bearing one apical seta.

Etymology.

The name derives from the name of one of the early European explorers to visit the region named as the Carr-Boyd Ranges (type locality). In 1883 William Henry James Carr-Boyd became second-in-command of an expedition led by W. J. O’Donnell on behalf of the Cambridge Downs Pastoral Association; their purpose was to explore the country around the Cambridge Gulf, and to establish a sheep station. The party of six men, including a cook and an Aboriginal boy, twenty-six horses and provisions for six months, left Katherine on 26 March 1883. O’Donnell named the impressive Carr Boyd Range after his second-in-command on 26 May.

Distribution.

Kimberleytyphlus carrboydianus sp. nov. occurs only at the type locality Carr-Boyd Ranges, 530 km SE Darwin, Kimberley, WA.

Figures

Figures 34, 35. Kimberleytyphlus carrboydianus gen. et sp. nov., HT ♂ 34 habitus 35 aedeagus in lateral view. Scale bars: 0.1 mm.