Revision of the enigmatic South African Cryptolaryngini (Coleoptera, Curculionidae), with description of a new genus and twenty-two new species Haran, Julien M. Marvaldi, Adriana E. Benoit, Laure Oberlander, Kenneth Stals, Riaan Oberprieler, Rolf G. European Journal of Taxonomy 2023 2023-06-30 877 1 1 89 Haran Haran & Marvaldi & Benoit & Oberlander & Stals & Oberprieler 2023 [558,962,523,550] Insecta Curculionidae Cryptolarynx GBIF Animalia Coleoptera 27 28 Arthropoda species namaquanus sp. nov.   urn:lsid:zoobank.org:act: F889226B-4182-43BB-A918-3DE821DEC07E  Figs 1G, 2G, 3G, 4G, 5G, 8D    Differential diagnosis   Cryptolarynx namaquanus sp. nov.can be distinguished from other species of  Cryptolarynxby its wide epifrons (subequal to length of scapes), its narrow forehead (narrower than width of eyes) and its proximally cylindrical metatibiae. Its broad parameroid lobes of the male genitalia, bearing only very short setae, and the shape of the spiculum are also unique among the species of the genus.  Cryptolarynx namaquanusis most similar to  C. variabilis sp. nov.and  C. carinatus sp. nov., but in the male it can be easily distinguished from these by its proximally cylindrical metatibiae (bearing an inner carina in  C. variabilisand  C. carinatus) and the conformations of its male genitalia. Uncorrected p-distances between  C. namaquanusand these two species were found to span 12.8–15.1% for COIand 3.7–4.2% for EF1with  C. variabilisand 9.3–10.4% for COIand 3.4% for EF1with  C. carinatus(Supp. file 1).    Etymology The species name  namaquanusrefers to the area where this species was found, the Namaqualand region of the Northern Cape provinceand part of the traditional home of the Nama people (Namaqua). The specific epithet is an adjective in the masculine form.    Material examined    HolotypeREPUBLIC OF SOUTH AFRICA •  ♂; “ REPUBLIC OF SOUTH AFRICA.  Northern Cape Province, Kamieskroon[  15 kmNW, Namaqua National Park, Skilpad Flower Camp].  29.viii.2019. J. Haranleg.” “ 30.170° S 17.793° Eat base of  Oxalis obtusa. JHAR02535_0101. Cirad-CBGP coll.” “Holotype.  Cryptolarynx namaquanus. Haran 2023”; SAMC.    Paratypes REPUBLIC OF SOUTH AFRICA–  Northern Cape• 1 ♂, 1 ♀; same collection data as for holotype; SAMC•  1 ♂, 9specs (preserved in ethanol); same collection data as for holotype; CBGP.   Description( ♂)  MEASUREMENTS. Body length 2–3 mm.  COLOUR AND VESTITURE. Body integument black, antennae and tarsi reddish. Dorsal vestiture (pronotum + elytra) consisting of overlapping, recumbent, parallel-sided clothing scales, 2 × as long as wide, truncate at apex; colour of scales varying from evenly greyish or creamy-white to brown or black; pale scales concentrated in two longitudinal stripes on pronotum and on elytral interstriae 4 as well as forming a pair of whitish spots surrounded by black scales at apical ⅔ of elytra; scales on interstriae recumbent, in lateral view not distinct from rest of vestiture.  HEAD. Forehead as wide as epifrons near antennal insertions, slightly narrower than width of an eye, scales recumbent. Eyes convex, in dorsal view exceeding outline of head, surrounded by a ring of short pale scales, on forehead directed towards occiput; distance between eye and scrobe as large as or slightly smaller than width of antennal club. Epifrons wide, distance between antennal insertions as large as length of scape, scales at most 2× as long as wide, recumbent, subcontiguous. Frons with pairs of erect lateral setae. Epistome without median seta. Antennal funicles with segments 1–2 elongate, subequal, about 3× as long as wide; 3–4 as long as wide, compressed, slightly angular on inside; 5–7 globular, isodiametric; 7 sometimes wider than long.  PRONOTUM. Transverse (W:L ratio 1.1–1.2), widest near midlength, sides arcuate; apex and base subequal in width.  ELYTRA. Broadly ovate, isodiametric (W:L ratio 1), sides convex, widest near midlength.  LEGS. Protibiae with outer margin straight, inner margin slightly bisinuate; metatibiae with apical mucro and inner setal fringe, setae shorter than segment 5 of metatarsus. Tarsi with segment 2 isodiametric.  ABDOMEN. Ventrites 1 and 5 slightly concave medially; ventrites 1–4 with creamy-white plumose scales, almost concealing integument, intermixed with long suberect setae, each apically bifid.  TERMINALIA. Body of penis moderately elongate (W:L ratio 0.5), 2× as short as temones, sides subparallel in basal half, converging in distal half; curvature in profile weak and regular, dorsoventrally slightly thickened at apex. Copulatory sclerite weakly sclerotised or not discerned in examined specimens. Parameroid lobes separate, divided by very deep median notch, each lobe broad, rounded at apex, bearing a series of very short setae. Spiculum gastrale with basal arms short and feebly curved.   Sexual dimorphism Males can be distinguished from females by the shape of ventrites 1 and 5 (concave in male, flat or slightly convex in female).    Life history Adults of  C. namaquanus sp. nov.were found in monospecific stands of  Oxalis obtusa, in the month of August.    Distribution All specimens collected were found at the typelocality, the only one thus far known for the species ( Fig. 13). 4145879419 2019-08-29 SAMC J. Haran South Africa Kamieskroon -30.17 Namaqua National Park 73 17.793 27 28 JHAR02535_0101 1 1 Northern Cape Province holotype 4145879346 2019-08-29 SAMC J. Haran South Africa Kamieskroon -30.17 Northern Cape 73 17.793 27 28 2 1 1 Northern Cape paratype 4145879343 [297,1240,1559,1585] 2019-08-29 CBGP J. Haran South Africa Kamieskroon -30.17 Namaqua National Park 73 17.793 27 28 10 1 Northern Cape Province paratype