Austromonticola caelibatus Brown

Brown, Samuel D. J., 2017, Austromonticola, a new genus of broad-nosed weevil (Coleoptera, Curculionidae, Entiminae) from montane areas of New Zealand, ZooKeys 707, pp. 73-130 : 80-82

Austromonticola caelibatus Brown sp. n. Figs 15, 16, 46, 47, 48, 49, 115

Diagnosis.

Body size large, 8 mm in length. Epifrons flat, with semi-erect setae. Funicle segments 7 subconical. Pronotum evenly convex. Elytra with erect, piliform setae.

Description.

Body length 7.83 mm to 8.91 mm (X‒ = 8.28 mm, s = 0.41, n = 5). Integument black. Dorsum densely covered with fine blackish blue appressed scales without metallic reflections. Femora and tibiae with appressed scales, unicolorous, concolorous with elytral scales. Tarsi with integument blackish red. Rostrum. Length 1.60 mm to 1.72 mm (X‒ = 1.65 mm, s = 0.05, n = 5), width 0.80 mm to 1.00 mm (X‒ = 0.94 mm, s = 0.08, n = 5), length/width ratio 1.68 to 2.04 (X‒ = 1.77, s = 0.15, n = 5). Epifrons with appressed scales tessellate; setae piliform, semi-erect, concolorous; median and lateral carinae evident. Dorsal carinae arched over antennal insertions. Lateral area ventral of antennal insertions with fine setae and appressed scales. Antennae. Scapes in repose reaching beyond hind margin of eyes; covered with appressed scales and setae. Funicular segments loosely articulated; segments 1 clavate, roughly as long as 2; segments 2 clavate, about two times longer than 3; segments 3 to 6 clavate, getting progressively shorter; segments 7 subconical. Pronotum. Length 1.90 mm to 2.24 mm (X‒ = 2.05 mm, s = 0.13, n = 5), width 3.08 mm to 3.25 mm (X‒ = 3.16 mm, s = 0.07, n = 5), length/width ratio 0.88 to 1.02 (X‒ = 0.94, s = 0.05, n = 5); in dorsal view widest in anterior 1/3, lateral margins evenly curved. Anterior margin entire, posterior margin straight. Disc in dorsal view evenly curved; appressed scales tessellate; setae piliform, semi-erect, concolorous. Postocular lobes moderately developed. Elytra. Length 5.15 mm to 5.61 mm (X‒ = 5.36 mm, s = 0.23, n = 5), width 3.08 mm to 3.25 mm (X‒ = 3.16 mm, s = 0.07, n = 5), length/width ratio 1.63 to 1.76 (X‒ = 1.70, s = 0.05, n = 5). Anterior margin slightly curved posteriad in middle, humeral angles rounded. Appressed scales tessellate. Setae piliform, semi-erect to erect, concolorous on disc, pale laterally and posteriorly. Striae moderately impressed; interstriae flat. Interstriae 1 at declivity flat in males; females unknown. Apex in lateral view square in males; females unknown. Thoracic ventrites. Mesoventral process rounded. Sutures between mesepimera and metanepisterna raised into a carina. Metaventrite densely covered with appressed scales. Abdomen. Ventrites sparsely clothed with appressed scales. Apex rounded. Males with ventrite 1 depressed medially, ventrite 5 flat. Females unknown. Male genitalia. Figs 46-49. Hemisternites with spiculum relictum large, bulbous and strongly pigmented. Penis with apex acute, upturned; ostial region unmodified. Endophallus with small gonoporial sclerite with reduced posterior lobes. Temones 0.52 times as long as pedon. Female genitalia. Unknown.

DNA sequences.

No DNA sequences obtained.

Type material examined.

Holotype. Male (CMNZ). Specimen pinned through right elytron; entire. Labelled '3832 Lake Ohau Ski Field / 1600-1650 m Johns, PM; / Nicholls, D 15.i.04' [printed, cream card], ‘2007.215.2060’ [printed, white card], ' Irenimus taxonomy / and systematics / SDJ Brown / PhD Thesis 2012-2015 / IRE4031' [printed, cream card], 'HOLOTYPE / Austromonticola / caelibatus / Brown 2017 ' [printed, red card].

Paratypes. A total of 4 specimens (4 males) designated as paratypes, bearing blue paratype label. Paratype specimens deposited in CMNZ.

MK: Lake Ohau Ski Field [44°13.44'S, 169°46.59'E, A], 15 Jan 2004, Johns PM, Nicholls D, 1600-1650 m (CMNZ: 4).

Distribution.

Fig. 115. South Island: MK: Lake Ohau Ski Field.

Elevational range.

Label data: 1625 m (n = 5). Georeferenced data: 1574 m (n = 5).

Etymology.

From the Latin noun caelibatus , ‘celibacy’, an allusion to the fact that the species is thus far known only from the male sex; the species name is a noun.

Biology.

No plant associations recorded.