Calotheca wanati, D’Alessandro & Iannella & Grobbelaar & Biondi, 2022

D'Alessandro, Paola, Iannella, Mattia, Grobbelaar, Elizabeth & Biondi, Maurizio, 2022, Calotheca nigromaculata species-group from sub-Saharan Africa with descriptions of two new species from KwaZulu-Natal (Chrysomelidae, Galerucinae, Alticini), ZooKeys 1084, pp. 119-137 : 119

publication ID

https://dx.doi.org/10.3897/zookeys.1084.73175

publication LSID

lsid:zoobank.org:pub:1CD83BDC-591D-40DB-8298-2E6E2F8F1CE5

persistent identifier

https://treatment.plazi.org/id/36AF9FD0-098F-4444-ABF5-AF7CEA799A5D

taxon LSID

lsid:zoobank.org:act:36AF9FD0-098F-4444-ABF5-AF7CEA799A5D

treatment provided by

ZooKeys by Pensoft

scientific name

Calotheca wanati
status

sp. nov.

Calotheca wanati sp. nov.

Figures 3A-D View Figure 3 , 4 View Figure 4 , 5 View Figure 5

Type material.

Holotype ♂: Republic Of South Africa: KZN: Ubombo Mountain Nat. Res., - 27.6100S / 32.0802E [27°36'36"S, 32°04'49"E], 110 m, beating, 30.xi.2012, M. Wanat leg. (SANC). Paratypes: Republic Of South Africa: 3♂8♀, same data as for holotype (UWCP); 1♀, ibid, R. Ruta leg. (UWCP); 1♂1♀, KZN: Jozini, 10 km SW, W slope of Ubombo Mts, 27°28'S, 32°01'E, 500 m, 23.i.2006, adults beaten off Allophylus natalensis ( Sapindaceae ), E. Grobbelaar leg. (SANC); 2♂2♀, KwaZulu-Natal: Mkhuze Game Res., - 27.6392S / 32.1583E [27°38'21"S, 32°09'29"E], 100 m, camping site, beating, 1.xii.2012, M. Wanat leg. (UWCP); 1♀, KwaZulu-Natal, Sodwana Bay, - 27.5315S / 32.6699E [27°31'53"S, 32°40'12"E], 5 m, swamp forest, site 1, 3.xii.2012, M. Wanat leg. (UWCP).

Diagnosis.

Calotheca wanati sp. nov. is very similar to C. nigromaculata , both in external morphology and shape of the aedeagus and spermatheca. It is mainly distinguishable by: the almost invariable elytral color pattern, with quite small, irregular, light brown patches ( C. nigromaculata is very variable in number, shape, and color of elytral patches, but the color pattern is generally different from C. wanati sp. nov.) (Figs 2A-C View Figure 2 , 3A View Figure 3 ); the first pro- and metatarsomeres in male less enlarged, slightly larger than the distal part of the tibia (distinctly larger than the distal part of the tibia in C. nigromaculata ) (Figs 2A-C View Figure 2 , 3A View Figure 3 ); and the female has enlarged elytra (WE/LE = 0.76 ± 0.01 in C. wanati sp. nov.) (WE/LE = 0.73 ± 0.01 in C. nigromaculata ) (Fig. 4B View Figure 4 ). The aedeagus is relatively short in C. wanati sp. nov. (LE/LAED = 2.16 ± 0.01) (Fig. 4C View Figure 4 ), in ventral view it has a sub-rhomboidal apical 1/4, and the prominent lateral expansions are angulate; in lateral view the median lobe is more distinctly curved apically (in C. nigromaculata , it is more elongate-LE/LAED = 1.92 ± 0.09, with indistict or very indistinct rounded lateral expansions in apical 1/4 in ventral view, and only slightly curved apically in lateral view) (Figs 2F View Figure 2 , 3B View Figure 3 ).

Description of the holotype (♂).

Body elliptical in dorsal view (Fig. 3A View Figure 3 ), rather convex in lateral view; total length of the body (LB) = 6.40 mm; maximum pronotal width in the middle (WP = 2.98 mm); maximum width of elytra in the basal third (WE = 3.80 mm). Head pale brown, slightly darker along the frontal grooves; antennae pale brown, with antennomeres 6-11 slightly darkened (Fig. 3A View Figure 3 ); surface microreticulate and densely micropunctate, with evident setiferous punctures on most of the vertex and part of the frons; frontal grooves sinuate, very deeply impressed, extending from approximately the dorsal ocular margin to the inter-antennal space (Fig. 3C View Figure 3 ); eyes elliptical, clearly elongate; antennae shorter than half the body length (LAN = 2.75 mm; LAN/LB = 0.43); LA: 100:50:61:61:67:67:61:61:64:61:100. Pronotum (Fig. 3A, C View Figure 3 ) slightly convex, pale brown, punctate lateral stria and part of the margins darkened; distinctly transverse in dorsal view (LP = 1.40 mm; WP/LP = 2.13), sub-rectangular, with sides more distinctly incurved in the anterior third; surface microreticulate and micropunctate, with minute punctation; anterolateral surface with very shallow depressions; punctate lateral striae distinctly impressed, C-shaped, and slightly curved on the disc; some additional sparse punctures along the pronotal margins; basal furrows short and moderately incised; anterior, basal, and lateral margins evenly and finely bordered; lateral margins barely visible in dorsal view; anterior angles distinctly prominent, indistinctly swollen; posterior angles obtuse. Scutellum brown, sub-triangular. Elytra (Fig. 3A View Figure 3 ) elongate (LE = 4.90 mm; WE/LE = 0.78; LE/LP = 3.50), moderately rounded and indistinctly sinuate laterally, jointly rounded apically; slightly paler than pronotum, with irregular brown patches and brown punctation; lateral margin narrow, barely visible in dorsal view; elytral punctation arranged in single regular rows formed by distinctly impressed punctures; interstriae flat on the elytral disc, with finely microreticulate and sparsely micropunctate surface; humeral calli indistinctly raised. Macropterous. Basal pro- and mesotarsomeres clearly enlarged (Fig. 3A View Figure 3 ). Underside brown; apical abdominal ventrite without preapical sculptures or impressions. Median lobe of the aedeagus (LAED = 2.28 mm; LE/LAED = 2.15) (Fig. 3B View Figure 3 ) distinctly sinuate laterally in ventral view; in ventral view it has a sub-rhomboidal apical 1/4 truncate apically, and the prominent lateral projections are angulate; ventral surface with a pair of elongate lateral U-shaped depressions with a wrinkled surface in the apical half; surface distinctly punctate in the apical 1/4; aedeagus curved in the basal 1/2 and distinctly sinuate in the apical 1/2; dorsal ligula short but clearly visible in lateral view, formed by a subtriangular apically truncate median lobe, and two narrower lateral lobes.

Variability.

Males (n = 7; mean ± standard deviation, range): LE = 4.94 ± 0.12 mm (4.75 ≤ LE ≤ 5.10 mm); WE = 3.80 ± 0.09 mm (3.65 ≤ WE ≤ 3.90 mm); LP = 1.45 ± 0.05 mm (1.38 ≤ LP ≤ 1.50 mm); WP = 2.95 ± 0.06 mm (2.85 ≤ WP ≤ 3.03 mm); LAN = 2.66 ± 0.10 mm (2.50 ≤ LAN ≤ 2.75 mm); LAED = 2.28 ± 0.06 mm (2.20 ≤ LAED ≤ 2.35 mm); LB = 6.25 ± 0.22 mm (6.00 ≤ LB ≤ 6.60 mm); LE/LP = 3.40 ± 0.11 (3.27 ≤ LE/LP ≤ 3.53); WE/WP = 1.29 ± 0.01 (1.28 ≤ WE/WP ≤ 1.31); WP/LP = 2.03 ± 0.06 (1.97 ≤ WP/LP ≤ 2.13); WE/LE = 0.77 ± 0.01 (0.75 ≤ WE/LE ≤ 0.79); LAN/LB = 0.43 ± 0.02 (0.38 ≤ LAN/LB ≤ 0.45); LE/LAED = 2.16 ± 0.07 (2.02 ≤ LE/LAED ≤ 2.22). Females (n = 10; mean ± standard deviation; range): LE = 5.43 ± 0.25 mm (5.20 ≤ LE ≤ 5.70 mm); WE = 4.13 ± 0.19 mm (3.75 ≤ WE ≤ 4.30 mm); LP = 1.54 ± 0.08 mm (1.40 ≤ LP ≤ 1.55 mm); WP = 3.14 ± 0.13 mm (2.88 ≤ WP ≤ 3.28 mm); LAN = 2.61 ± 0.18 mm (2.40 ≤ LAN ≤ 3.05 mm); LSP = 0.66 ± 0.04 mm (0.60 ≤ LSP ≤ 0.75 mm); LB = 6.68 ± 0.34 mm (6.05 ≤ LB ≤ 7.10 mm); LE/LP = 3.53 ± 0.11 (3.35 ≤ LE/LP ≤ 3.70); WE/WP = 1.31 ± 0.02 (1.30 ≤ WE/WP ≤ 1.36); WP/LP = 2.04 ± 0.07 (1.88 ≤ WP/LP ≤ 2.13); WE/LE = 0.76 ± 0.01 (0.74 ≤ WE/LE ≤ 0.78); LAN/LB = 0.39 ± 0.02 (0.36 ≤ LAN/LB ≤ 0.45); LE/LSP = 8.21 ± 0.28 (7.93 ≤ LE/LSP ≤ 8.54). Paratypes very similar in shape, sculpture, and color to the holotype. Maximum pronotal width close to the pronotal base in some specimens. Female with basal pro- and mesotarsomeres less enlarged than in male. Spermatheca (Fig. 3D View Figure 3 ) globosely fusiform basally, subconical at the ductus attachment; distal part distinctly curved and slightly shorter than the basal part, with a distinct, irregularly enlarged appendix; ductus basally inserted, thickset, short, uncoiled, roughly U-shaped.

Etymology.

The specific epithet is a noun in the genitive case after Dr Marek Wanat (University of Wrocław, Poland), one of its collectors and esteemed expert of Coleoptera Curculionoidea .

Distribution.

Republic of South Africa (KZN) (Fig. 5 View Figure 5 ). Chorotype: Southern-Eastern African (SEA).

Ecological notes.

Adults were collected in November, December, and January, between 5-500 m a.s.l., on Allophylus natalensis ( Sapindaceae ) on one occasion and in swamp forest during a different collecting event.