Turnerapion pondoense, Wanat, 2021

Wanat, Marek, 2021, New basal taxa of South African Apioninae (Coleoptera: Curculionoidea: Brentidae), Zootaxa 5035 (1), pp. 1-60: 31-35

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Turnerapion pondoense

sp. n.

Turnerapion pondoense   sp. n.

( Figs. 151–186 View FIGURES 151–167 View FIGURES 168–186 , 293 View FIGURES 289–296 )

Type material. Holotype ♂ (labels as in Fig. 186 View FIGURES 168–186 ): a) S. Africa./ R. E.Turner./Brit. Mus./1923–547, b) Port St. John,/ Pondoland / Oct.1923, c) type label by M. Wanat [Eastern Cape] ( BMNH) [abdominal ventrites glued on card near specimen, genitalia in glycerol—microvial pinned under specimen]   . Paratypes (5 ♂ 6 ♀): R. S. A.: Eastern Cape: same labels as in the holotype (1 ♂, MWC; 1 ♂ 1 ♀, BMNH); same but date Aug.15-31.1923 (2 ♀, BMNH); same but date Sept.1923 (1 ♂ 1 ♀, BMNH); same but date Nov.1923 (1 ♂ 1 ♀, BMNH; 1 ♀, MWC); same but date Dec.1923 (1 ♂, BMNH). Three of the paratypes (2 ♂ 1 ♀) collected in September and October are teneral, with soft and deformed elytra   .

Diagnosis. As in genus.

Description. Body 2.5–3.0 mm long, red-testaceous, with yellow-testaceous legs and antennae. Elytra usually with 3–4 indistinct and irregular transverse bands of slightly darker testaceous integument. Vestiture white to yellowish; underside of body with sparse semi-recumbent setae thinner and shorter than piliform scales on elytra.

Morphological indices (n=8): rl/pl: 1.16–1.23; rl/mxrw: ♂ 3.84–4.19 ( M: 4.04), ♀ 4.13–4.34 ( M: 4.22); scl/ msrw: 1.08–1.33; msrw/mtrw: ♂ 1.04–1.12 ( M: 1.09), ♀ 1.08–1.19 ( M: 1.12); msrw/arw: 1.07–1.18; msrw/ minrw: 1.13–1.23; msrw/eyl: 0.60–0.75; brl/eyl: 1.28–1.41; eyl/hl: 0.60–0.67; frw/mtrw: ♂ 0.83–0.95 ( M: 0.90), ♀ 0.96–1.10 ( M: 1.01); hl/hw: 0.84–0.95; mpw/hw: 1.09–1.17; bpw/apw: 0.95–1.01; pl/mpw: 1.28–1.35; mew/mpw: ♂ 1.96–2.10 ( M: 2.03), ♀ 2.08–2.20 ( M: 2.14); el/pl: 2.82–3.00; el/mew: ♂ 1.80–1.94 ( M: 1.87), ♀ 1.73–1.82 ( M: 1.78); mew/bew: ♂ 1.36–1.48 ( M: 1.43), ♀ 1.42–1.53 ( M: 1.47); bew/mpw: 1.32–1.50; pft/msrw: 1.07–1.32; ptbl/pl: 1.19–1.29; ptbl/ptbmw: 8.25–9.84   .

Rostrum slightly longer than pronotum, nearly straight ( Figs. 155–158 View FIGURES 151–167 ), dorsally with fine, sparse punctures vanishing before apex, the punctures bearing microscopic setae especially on rostrum sides; sides of metarostrum impunctate, irregularly rugose; ventrally punctures on prorostrum base and flat septum of scrobes larger and denser than on rest of rostrum; scrobes broad and narrowly separated, with heavy scale-like microsculpture ( Fig. 185 View FIGURES 168–186 ). Mouthparts with both maxillary and labial palps distinctly elongate.

Head in natural position with vertex and temples sharply divided into equally long sculptured anterior part and smooth and bare posterior part ( Fig. 155 View FIGURES 151–167 ); eyes strongly, regularly convex; epifrons between eyes gently convex, with well-developed median rib (at least), lateral ribs often obsolescent; temples in dorsal view slightly divergent, laterally at eye side rough and setose but impunctate ( Fig. 158 View FIGURES 151–167 ); gular region microreticulate, with several coarse, flat transverse wrinkles, laterally with short, appressed white setae ( Fig. 185 View FIGURES 168–186 ).

Antennae as in Fig. 154 View FIGURES 151–167 , inserted (♂ ♀) 0.41–0.45 from rostrum base; length/width ratio: scape 4.4–5.0, fun1 1.6–2.3, fun2 1.8–2.1, fun3 1.7–1.8, fun5 1.1–1.5, fun6 1.0–1.1, fun7 0.85–0.90, club 2.9–3.3; length of scape/fun1 2.2–2.7, fun1/fun2 1.2–1.6, fun3 0.7–0.8 × as long as fun1, fun4–7 successively shorter; club besides recumbent pilosity with several longer, protruding setae.

Pronotum elongate, at base slightly narrower than at apical margin ( Fig. 159 View FIGURES 151–167 ); disc with undisturbed vestiture directed obliquely inwards from both sides, leaving in middle a narrow uncovered longitudinal line; piliform scales based in minute punctures not much larger than single ommatidium and well distant from each other; anterior margin on sides and dorsally with several fine transverse wrinkles, partly obscured by vestiture; sub-basal dorsal line gently curved anterad at sides; prominent prosternellum rounded, not conical, separated from hypomeron by distinct superficial sutures forming Y-shaped junction with the longitudinal suture separating hypomeral lobes; hypomeron impunctate, with single transverse row of semi-recumbent setae.

Elytra elongate and weakly convex, with poorly marked caudal part ( Figs. 151, 152 View FIGURES 151–167 ); intervals shiny, at most 1.5 × as broad as striae, distinctly convex except for basal portions of narrowed intervals 1–3; sutural interval often slightly darkened on its basal and subapical portions; striae shallowly impressed, with small setiferous punctures distant from each other by several puncture diameters; piliform scales in rows not touching each other like those on intervals; specialized setae extremely fine and difficult to observe.

Wing as in Fig. 176 View FIGURES 168–186 .

Mesoventrite laterally with 3–4 shallow punctures close to pronotal margin; base of mesoventral intercoxal process with several piliform scales. Metaventrite twice as long as mesocoxal cavity, in middle transversely microreticulate, shiny and bare, on sides sparsely punctate and with piliform scales becoming thinner and replaced with fine setae towards middle. Abdominal ventrites 1–2 with transverse net-like microsculpture, very sparsely punctate; intercoxal process of ventrite 1 broadly rounded and coarsely punctate; ventrites 3–4 strongly microreticulate, with 2–3 confused transverse rows of setae; ventrite 5 entirely microreticulate and with shallow setiferous punctuation.

Metafurca narrow, Y-shaped with straight arms, anterior tendons not sclerotized ( Fig. 184 View FIGURES 168–186 ).

Legs uniformly coloured except darkened claws. Coxae concolorous with the remaining parts of legs and clearly lighter than thoracic integument; procoxae densely microreticulate except for shiny extreme apices, on front side with just 3–4 piliform scales. Femora smooth, with sparse piliform scales, on underside replaced with fine appressed setae. Tibiae on inner side with microscopic asperities bearing fine setae. Tarsi unicolorous, latero-ventrally with dense semi-recumbent pilosity; protarsus 4.0–4.2 × as long as wide ( Fig. 162 View FIGURES 151–167 ); length/width ratio of tarsomeres: 1 st 4.0–4.3, 2 nd 1.3–1.5, 3 rd 0.8; onychium surpassing tarsomere 3 by 0.4 × length; claws as in Fig. 153 View FIGURES 151–167 .

Male. Rostrum as in Figs. 155 & 157 View FIGURES 151–167 . Mesotibial mucro obtuse ( Fig. 160 View FIGURES 151–167 ). Metatibial mucro truncate apically ( Fig. 161 View FIGURES 151–167 ). Abdomen about 1.2 × as long as wide; ventrite 5 gently convex, 2.1 × as broad as long ( Fig. 177 View FIGURES 168–186 ). Pygidium transverse, roundly convex in profile, with very short exposed margin ( Fig. 173 View FIGURES 168–186 ), and semicircular, weakly sclerotized tongue-like process ( Figs. 172, 174 View FIGURES 168–186 ). Tegminal apodeme about twice as long as basal piece ( Fig. 170 View FIGURES 168–186 ); tegminal plate 1.7–1.8 × as long as wide, laterally with complete narrow stripes of slightly darker sclerotization from basal articulation to apices of apical lobes; parameral lobes short, almost entirely occupied by weakly sclerotized suprafenestral sclerites extended to surround median notch ( Fig. 171 View FIGURES 168–186 ); macrochaetae 10–12, hardly longer than parameral notch; transparent fenestral sector small and only lateral; postfenestral plate fully membranous and stainable with Chlorazol black; prostegium weakly and uniformly sclerotized, with indefinite anterior margin. Penis narrow; apodemes distinctly shorter than pedon; tectum entire, weakly sclerotized, shorter than two-thirds of pedon length; pedon in dorsal view gently narrowing along most of its length and narrowly rounded at apex, 3.8–4.0 × as long as wide, in profile nearly straight throughout, relatively thick apically ( Figs. 168, 169 View FIGURES 168–186 ); endophallus sparsely microspinose along most of its length, in addition to frena with 8–10 variably sized thorn-like sclerites spread through the part exposed from pedon in repose; frena large, hook-like, laying close to orifice in repose; ejaculatory duct fine, as broad as sub-basal parts of penile apodemes, entering endophallus at base of pedon, not at apex of exposed sac.

Female. Rostrum slightly longer ( Fig. 156, 158 View FIGURES 151–167 ). Abdomen 1.3–1.4 × as long as wide; ventrite 5 flattened, 1.9 × as broad as long, ( Fig.178 View FIGURES 168–186 ). Tergite VII strongly transverse and broadly sclerotized, shortly and evenly setose ( Fig. 182 View FIGURES 168–186 ). Tergite VIII well over 3 × as broad as long, with continuous sclerotization constricted in middle and several variably long setae ( Fig. 183 View FIGURES 168–186 ). Spiculum ventrale 2.1–2.2 × as long as gonocoxite ( Fig. 180 View FIGURES 168–186 ). Gonocoxites 2.3–2.4 × as long as wide, with short abruptly narrowed apex; styli about twice as long as wide, shortly setose ( Fig. 179 View FIGURES 168–186 ). Genital sheath of ovipositor and bursa simply membranous. Bursa elongate, with several small thorn-like teeth ( Fig. 181 View FIGURES 168–186 ). Spermatheca with robust corpus and short cornu ( Fig. 175 View FIGURES 168–186 ).

Distribution. R.S.A.: vicinity of Port St. Johns ( Fig. 293 View FIGURES 289–296 ).

Etymology. The new species is named after Pondoland, the historical area of South Africa between Transkei and KwaZulu-Natal and one of the most relevant local biodiversity hotspots, hosting many ancient apionines, including Turnerapion   .


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Royal Botanic Garden Edinburgh


Botanische Staatssammlung München


Harvard University - Arnold Arboretum


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