Apodytapion stepniewskii, Wanat, 2021

Wanat, Marek, 2021, New basal taxa of South African Apioninae (Coleoptera: Curculionoidea: Brentidae), Zootaxa 5035 (1), pp. 1-60: 25-29

publication ID

https://doi.org/10.11646/zootaxa.5035.1.1

publication LSID

lsid:zoobank.org:pub:95CC79A1-8A2D-4532-8E59-A3DA1A437A62

persistent identifier

http://treatment.plazi.org/id/A40A5638-E858-CD45-FF6B-2D11FDA06EF9

treatment provided by

Plazi

scientific name

Apodytapion stepniewskii
status

sp. n.

Apodytapion stepniewskii   sp. n.

( Figs. 112–150 View FIGURES 112–131 View FIGURES 132–143 View FIGURES 144–150 , 292 View FIGURES 289–296 )

Type material. Holotype ♂: a) RSA ( E) E Cape 20-80 m / - 31.6532S / 29.5068E /Silaka Nat. Res./nr Port St. Johns / trail up chalet 11, beating/ 13.11.2013 leg. M. Wanat ( ISAM) GoogleMaps   . Paratypes (28 ♂♂ 30 ♀♀): Mpumalanga: a) S   . Afr. , E   . Transvaal / Berlin; Karst plat   ./ 25.31 S – 30.46 E, b) 8.12.1986, E-Y: 2363/fungous Pinus   logs/leg. Endrödy-Younga [-25.5167 / 30.7667] (2 ♀, TMSA); Nelspruit Nat. Res. (gate) GoogleMaps   , - 25.4923S / 30.9845E, 740 m alt., 2.11.2013, beating, leg. MW (1 ♂, MWC) GoogleMaps   . KwaZulu-Natal: a) S   . Africa. / R   . E   . Turner. / Brit. Mus. /1926–277, b) Zululand:/Gingindhlo- vu/ 9. VI   .1926. (1 ♂, BMNH)   . Eastern Cape: a) Malvern / Natal 6.97/8442., b) Captured /by G   . A   . K. Marshall, c) Brit. Mus. /1946–272 (1 ♂ 1 ♀, BMNH); same labels but date 7.97 (1 ♀, BMNH); a) S   . Africa. / R   . E   . Turner. / Brit. Mus. /1923–332, b) Port St. John ,/ Pondoland / May 15-31.1923. [Eastern Cape] (1 ♀, BMNH); a) same data but 1923- 363, b) same data but June 12-30.1923 (2 ♂ 2 ♀, BMNH); a) ...1923-369, b) ... July 1-9.1923 (1 ♂ 1 ♀, BMNH); a) ...1923-398, b) ... July 10-31.1923 (1 ♂ 3 ♀, BMNH); a) ...1923-422, b) ... Aug. 7-13.1923 (1 ♂, BMNH); a) ...1923-463, b) ... Aug. 15-31.1923 (1 ♂ 1 ♀, BMNH); a) ...1924-6, b) ... Nov. 1923 (1 ♂, BMNH); Silaka Re- serve   : - 31.6532S / 29.5068E, 20-80 m alt., trail up chalet 11, beating, 13.11.2013 (10 ♂ 9 ♀, MWC, SANC, TMSA, SMTD) GoogleMaps   ; -31.6527 / 29.5064, 5-10 m alt., main road & beach camp, 29.11.2019 (2 ♂ 1 ♀; MWC) GoogleMaps   ; -31.6557 / 29.5059, 5-10 m alt., beach & sea shore, 29.11.2019 (2 ♂ 3 ♀, MWC, CGC) GoogleMaps   ;, -31.6536 / 29.5057, 10 m, ex Apodytes   di- midiata, 1.12.2019 (1 ♂ 1 ♀, MWC) GoogleMaps   ; -31.6549 / 29.5051, 20-35 m alt., main rd (lower, to chalet 15), 1.12.2019 (2 ♂ 1 ♀, MWC); (up to) GoogleMaps   -31.6531 / 29.502, 40- 140 m alt., main rd (mid & upper), 1.12.2019 (1 ♂ 1 ♀, MWC) GoogleMaps   ; - 31.6561 / 29.5049, 0-25 m, Jongelwandle trail, 1.12.2019 (1 ♀, MWC)—all beaten from Apodytes dimidiata   , leg. M GoogleMaps   . Wanat   . Western Cape: Wilderness Nat. Park, Serpentine river valley, - 33.9945S / 22.6180E; 5 m alt., riverine fynbos, 29.11.2013, 1 ♀, leg. MW GoogleMaps   ( MWC) GoogleMaps   .

Diagnosis. As in genus.

Description. Body length 1.7–2.5 mm. Red stripes on elytra, if present, variably broad, continuous from elytral base to apices of intervals 4–6 and partially entering also neighbouring intervals 3 and 7 ( Fig. 114 View FIGURES 112–131 ), or variously broken in middle; in all degrees of their development red stripe or fleck encompasses humeral callus. In the specimens with broad red stripes on elytra occasionally pronotum and the most outer elytral intervals dark testaceous, not black. Antennae usually with distinctly darker club and distal half of funicle, rarely entire testaceous (possible even in the specimens with fully black elytra). Light setae on head, pronotum and underside of body short, semirecumbent, not longer than combined length of 3 ommatidia.

Morphological indices (n=12): rl/pl: ♂ 0.79–0.90 (M: 0.84), ♀ 0.86–1.03 (M: 0.95); rl/mxrw: ♂ 1.90–2.10 (M: 1.99), ♀ 2.18–2.58 (M: 2.38); scl/msrw: ♂ 0.59–0.72 (M: 0.67), ♀ 0.62–0.83 (M: 0.74); msrw/mtrw: 1.04–1.17; msrw/arw: ♂ 1.19–1.28 (M: 1.23), ♀ 1.03–1.21 (M: 1.11); msrw/minrw: ♂ 1.19–1.28 (M: 0.23), ♀ 1.08–1.21 (M: 1.13); msrw/eyl: 0.93–1.16; brl/eyl: 0.96–1.33; eyl/hl: 0.59–0.73; frw/mtrw: ♂ 0.87–1.03 (M: 0.95), ♀ 0.93–1.12 (M: 1.00); hl/hw: 0.67–0.79; mpw/hw: ♂ 1.06–1.20 (M: 1.12), ♀ 1.11–1.25 (M: 1.18); bpw/apw: 0.92–1.16; pl/ mpw: 1.05–1.20; mew/mpw: ♂ 1.67–1.83 (M: 1.78), ♀ 1.82–1.92 (M: 1.87); el/pl: 2.50–2.78; el/mew: 1.57–1.67; mew/bew: 1.23–1.35; bew/mpw: 1.33–1.48; pft/msrw: ♂ 0.77–0.94 (M: 0.86), ♀ 0.88–1.06 (M: 0.96); ptbl/pl: 0.96–1.20; ptbl/ptbmw: 5.62–7.36;

Rostrum shaped as in Figs. 116 & 117 View FIGURES 112–131 , in male often nearly straight due to slight median expansion in profile ( Fig. 120 View FIGURES 112–131 ), in females evidently curved ( Fig. 146 View FIGURES 144–150 ); its basal half all-around with strong microreticulation, being dorsally often extended to prorostrum; septum of scrobes slightly widening posterad ( Fig. 132 View FIGURES 132–143 ), not narrowing as usually in apionines.

Head distinctly transverse; eyes prominent, usually more roundly convex in males ( Fig. 116 View FIGURES 112–131 ); epifrons between eyes variably sculptured, microreticulate, in middle punctate or not, with paired sulci broadly separated and running closer to eyes ( Fig. 135 View FIGURES 132–143 ) or, occasionally, submedian and even joining to appear V-like; vertex anteriorly punctate and microreticulate on a distance of about one-third eye diameter, its posterior half depressed, bare and shiny; temples anteriorly with rugose sculpture for a distance of about one-fourth of eye diameter; subocular setae usually recumbent ( Fig. 120 View FIGURES 112–131 ), rarely a few of them protruding; head venter punctate in between and shortly behind eyes, punctures with minute setae ( Fig. 132 View FIGURES 132–143 ).

Antennal insertion from rostrum base ♂: 0.47–0.55 (M=0.50), ♀: 0.41–0.48 (M=0.43); setae sparse and weakly protruding on scape and funicle, dense and rather forward-directed on club; length/width ratio: scape 2.7–3.6, fun1 2.3–3.1, fun2 2.6–3.3, fun6 1.3–1.9, fun7 1.2–1.7, club 3.6–5.2; length of scape/fun1 1.3–1.5, fun1/fun2 1.0–1.1, fun3 0.6–0.8 × as long as fun1, fun4 as long as fun3, fun5–7 as long or slightly shorter than fun4, all three of similar length or each subsequent slightly shorter than previous one; club only exceptionally as long or longer than combined length of 5 distal funicular segments, usually about 4.0–4.5 × as long, with at least its median segment distinctly transverse ( Fig. 134 View FIGURES 132–143 ).

Pronotum as in Figs. 115 View FIGURES 112–131 & 135 View FIGURES 132–143 ; punctures on disc sized as on head or slightly larger, the largest as large as 2 combined ommatidia, variably distant, from less than 1 to 3–4 puncture diameters apart, their interspaces flat, microreticulate; prosternum half as long as hypomeron; prosternellum reaching about mid-length of procoxal cavities; hypomeron flat, impunctate ( Fig.132 View FIGURES 132–143 ).

Scutellar shield semicircular or button-like ( Fig. 135 View FIGURES 132–143 ).

Elytra shaped as in Figs. 112–114 View FIGURES 112–131 ; striae seemingly narrower on red elytral stripes than on black integument; intervals in middle of elytral disc 3–5 × broader than striae; apical portions of intervals 1 and 10 with more numerous short setae ( Fig. 136 View FIGURES 132–143 ).

Wing as in Fig. 147 View FIGURES 144–150 .

Mesoventrite with two groups of several punctures close to prothoracic margin; base of intercoxal process impunctate ( Fig. 137 View FIGURES 132–143 ). Metaventrite as long as mesocoxal cavities, convex, with setiferous punctures on sides, in middle bare and nearly impunctate; base of short metaventral intermesocoxal process hollowed. Abdominal ventrites 1–2 sparsely punctate and setose; microsculpture consisting of transversely extended reticulation; ventrites 3–4 heavily microreticulate ( Figs. 144, 145 View FIGURES 144–150 ).

Legs shorter than in Rhynchitapion   . Procoxae lacking microreticulation on apices. Femora finely microreticulate in inflated middle part, with stronger microsculpture near articulations. Protibia without outer and/or inner edges, with inconspicuous apical comb of setae, these more numerous, whitish and covering whole tibial apex on meso- and metatibiae. Tarsi often bicolorous, specifically with lighter entire tarsomere 3 and bases of tarsomere 1 and onychium; protarsus 2.9–3.1 × as long as wide ( Fig. 118 View FIGURES 112–131 ); two basal tarsomeres widening apicad; length/width ratio of tarsomeres: 1 st —2.0–2.4, 2 nd —1.0–1.2, 3 rd —0.75–0.85; onychium exceeding tarsomere 3 by 0.40–0.45 length; claws with low teeth ( Fig. 143 View FIGURES 132–143 ).

Male. Rostrum more robust ( Figs. 116, 120 View FIGURES 112–131 ). Metaventrite flattened. Mucro on mesotibia simply acute ( Fig. 142 View FIGURES 132–143 ); mucro on metatibia truncate or falcate, obliquely protruding or parallel to the axis of tibia ( Figs. 119 View FIGURES 112–131 , 143 View FIGURES 132–143 ). Abdomen as in Fig. 144 View FIGURES 144–150 ; ventrite 5 gently convex, 1.8–1.9 × as broad as long, entirely microreticulate, with dense shallow punctures. Pygidium transverse ( Fig. 148 View FIGURES 144–150 ). Sternite VIII as in Fig. 125 View FIGURES 112–131 . Spiculum gastrale with apodeme 3–4 × longer than straight-armed fork. Tegminal plate about twice as long as wide ( Fig. 123 View FIGURES 112–131 ), joining arms of basal piece with a relatively thick sclerotized filament; suprafenestral sclerites regularly arched, with 5–7 long macrocheatae, without membranous extensions; ventral layer of fenestral sector with lateral sclerotized stripes, in side view visible as distinct bars ( Fig. 124 View FIGURES 112–131 ); postfenestral plate in middle as long as suprafenestral sclerite; prostegium with broadly sclerotized, narrowing lateral “tails”, narrowly separated in middle. Penile apodemes slightly reinforced at connection with tectum; pedon 2.8–3.0 × as long as wide, in basal half parallel-sided, from middle narrowing and extended into a thin apical process, in profile nearly straight ( Figs. 121, 122 View FIGURES 112–131 ); endophallus lacking typical sclerites, instead with pair of long, narrowly triangular, weakly sclerotized laminae having their inner margins indistinctly serrate; membrane of exposed part of endophallus entirely covered with dense microplates, similar to membrane near orifice; inflated endophallus shaped as in Fig. 126 View FIGURES 112–131 , with prominent single ventral and dorsal lobes.

Female. Rostrum slightly longer, thinner and more strongly curved ( Figs. 117 View FIGURES 112–131 , 146 View FIGURES 144–150 ). Abdomen as in Fig. 145 View FIGURES 144–150 ; ventrite 5 less convex, 2.4–2.5 × as broad as long, with a smooth median field at border with ventrite 4, with sparser and finer punctuation than in male. Gonocoxites about 3.5 × as long as wide, subparallel-sided, uniformly sclerotized; styli cylindrical, twice as long as wide ( Fig. 130 View FIGURES 112–131 ). Vagina simply membranous. Bursa broad, without evident lobes, with major part of its membrane having moderately dense transverse microplates. Spermatheca as in Fig. 128 View FIGURES 112–131 , spermathecal duct thin.

Biology. See the genus description.

Distribution. R.S.A. (Mpumalanga, KwaZulu-Natal, Eastern Cape, Western Cape); from Nelspruit in the north to Wilderness in the south ( Fig. 292 View FIGURES 289–296 ).

Etymology. Named to honour Dr. Marcin Stępniewski, hematologist, in gratitude for his successful efforts to keep the author able to write this paper.

E

Royal Botanic Garden Edinburgh

M

Botanische Staatssammlung München

S

Department of Botany, Swedish Museum of Natural History

TMSA

Transvaal Museum

MW

Museum Wasmann

MWC

Museum of Western Colorado

R

Departamento de Geologia, Universidad de Chile

VI

Mykotektet, National Veterinary Institute

G

Conservatoire et Jardin botaniques de la Ville de Genève

A

Harvard University - Arnold Arboretum

K

Royal Botanic Gardens

SANC

Agricultural Research Council-Plant Protection Research Institute

CGC

Caenorhabditis Genetics Center