Tapinomorphus kudrnai Borovec & Nakládal, 2020

Borovec, Roman & Nakládal, Oto, 2020, Four new Tapinomorphus Hartmann species from Angola, Zambia and Zimbabwe (Coleoptera: Curculionidae: Entiminae: Sciaphilini), Zootaxa 4838 (1), pp. 128-136 : 131-132

Tapinomorphus kudrnai Borovec & Nakládal , sp. nov.

http://zoobank.org/ urn:lsid:zoobank.org:act:B1905A3B-EEF7-4B24-BCCC-1FFC7BF9160D

( Figs 2 , 9–12 )

Type locality. Zambia, Chipoma Falls , 25 km SW Chinsali.

Type material. Holotype: ♂, ‘ Zambia, Northern pr., Chipoma falls, 25 km SW Chinsali, 5.- 6.12.2002, A. Kudrna Jr. lgt.’ ( TMSA).

Description. Body length of holotype 2.05 mm. Body brown, scapes, funicles, tibiae and tarsi somewhat paler, yellowish brown. Elytra with rounded, longitudinally finely striolate appressed scales, 4 scales across width of one interval ( Fig. 2 ). Pronotum, head with rostrum, femora with tibiae with more slender, long oval appressed scales, almost concealing integument. Elytra with one regular row of semiappressed, inconspicuous, wide, almost rounded scales, longitudinally finely striolate, about as long as half the width of one interval, distinctly wider than diameter of one appressed scale, distance between setae separated by three times length of one seta. Pronotum, head with rostrum, femora and tibiae with short, slender, semiappressed, hardly visible setae. Scapes at inner side with group of erect, moderately long, slender, subspatulate setae; funicles with short, semierect, piliform setae. Vestiture brownish; elytra with irregularly scattered small spots from greyish scales, pronotum with greyish scales in lateral parts, head and rostrum with dominant greyish scales.

Rostrum ( Figs 9, 10 ) at short basal part enlarged apicad, then evenly distinctly tapered apicad with straight sides, 1.18 × as wide as long, at base 1.13 × as wide as at apex; laterally distinctly convex, weakly curved down before antennal insertion, conspicuously separated from head by transverse sulcus. Epifrons widest at base, distinctly evenly tapered apicad with straight sides, flat, with shallow longitudinal median furrow, separated from head by distinct shallow transverse sulcus. Frons long, posteriorly reaching antennal insertion, matt, flat. Epistome not developed. Scrobe dorsally visible as very narrow furrow, slightly constricted at the middle; laterally furrow-shaped, well edged, weakly curved, directed below eyes and not touching them. Eyes moderately large, prominent from outline of head, laterally placed above at middle of head. Head short and wide; vertex with shallow longitudinal median furrow.

Antennae slender; scape 1.4 × as long as funicle, curved at midlength, in basal half very slender, in apical half evenly enlarged apicad, at apex weakly narrower than club. Funicle 5-segmented; segment 1 1.9 × as long as wide and 1.7 × as long as segment 2, which is 1.7 × as long as wide; segment 3 isodiametric; segment 4 1.2 × as wide as long; segment 5 1.4 × as wide as long; club 1.7 × as long as wide.

Pronotum ( Fig. 2 ) short and wide, 1.61 × as wide as long, 0.63 × as wide as elytra, widest at basal quarter with distinctly rounded sides, more tapered anteriorly than posteriorly; base V-shaped; disc distinctly regularly convex with coarse punctures.

Elytra short oval ( Fig. 2 ), 1.15 × as long as wide, with distinctly rounded sides and broadly rounded at apex. Striae punctate, narrower than intervals; interstriae without bumps or elevations. Subhumeral bumps weakly developed, visible only in dorso-lateral view.

Abdominal ventrites short and wide, 1.12 × as wide as long, glabrous, shiny, ventrite 1 indistinctly punctured, the others smooth; ventrite 1 at middle about three times as long as ventrite 2; ventrite 2 at middle only slightly longer than ventrite 3 or 4. Suture between ventrites 1 and 2 sinuose. Metaventral process distinctly wider than transverse diameter of metacoxa.

Femora unarmed. Protibiae with outer edge straight and inner edge distinctly enlarged, apex rounded with fringe of very fine yellowish setae. Metatibiae with inner edge without spines or teeth, weakly enlarged at apex. Tarsal segment 2 1.7 × as wide as long; segment 3 1.4 × as wide as long and 1.4 × as wide as segment 2; onychium long and slender, 1.7 × as long as segment 3; claws fused in basal third, then weakly divorced.

Female genitalia. Spermatheca ( Fig. 12 ) with very slender and small cornu, irregularly curved; corpus rounded; ramus isodiametric, subquadratic; collum tapered apicad, weakly curved at apex. Sternite VIII ( Fig. 11 ) with plate narrow, arrow-shaped, with long tip exceeding anterior margin and long sclerites almost reaching base of plates; apodeme terminated at basal third. Gonocoxites flat, tapered apicad, with long apical styli with tuft of setae.

Etymology. The new species is dedicated to its collector, Arnošt Kudrna (Faculty of Science University of South Bohemia, České Budějovice), specialist of Cicindelidae .

Biology. Unknown.

Differential diagnosis. Tapinomorphus kudrnai Borovec & Nakládal , sp. nov. is easily distinguishable from all other Tapinomorphus species by 5-segmented funicles, a character state shared only with T. angolanus Borovec & Nakládal , sp. nov. and T. divergens Voss. It can be distinguished from T. angolanus Borovec & Nakládal , sp. nov. by many characters, for example by short and wide rostrum, 1.18 × as wide as long (vs. 1.12 × in T. angolanus Borovec & Nakládal , sp. nov.), short and wide pronotum, 1.61 × as wide as long (vs. 1.48 × in T. angolanus Borovec & Nakládal , sp. nov.), segment 1 of funicle distinctly longer than segment 2 (vs. equally long in T. angolanus Borovec & Nakládal , sp. nov.), short, rounded semiappressed setae on elytra (vs. long, slender, subspatulate setae in T. angolanus Borovec & Nakládal , sp. nov.) and others. In the similar shape of rostrum T. kudrnai Borovec & Nakládal , sp. nov. somewhat resembles T. latipennis Borovec & Nakládal , sp. nov., from which it can be distinguished (except for its funicle segment number) by elytra short oval, 1.15 × as long as wide (vs. elytra rounded, flat, about as long as wide in T. latipennis Borovec & Nakládal , sp. nov.) and sternite VIII in females with plate pointed with two longitudinal sclerites (vs. plate not pointed and without sclerites in T. latipennis Borovec & Nakládal , sp. nov.).

Figures

FIGURES 1–4. Dorsal habitus. 1. Tapinomorphus angolanus sp. nov.; 2. T. kudrnai sp. nov.; 3. T. latipennis sp. nov.; 4. T. verunkae sp. nov.

FIGURES 5–21. Structural details. 5–8. Tapinomorphus angolanus sp. nov. 5. head with rostrum, dorsal view; 6. head with rostrum, lateral view; 7. abdominal ventrites; 8. penis dorsal and lateral view. 9–12. T. kudrnai sp. nov. 9. head with rostrum, dorsal view; 10. head with rostrum, lateral view; 11. female sternite VIII; 12. spermatheca. 13–18. T. latipennis sp. nov. 13. head with rostrum, dorsal view; 14. head with rostrum, lateral view; 15. penis dorsal and lateral view; 16. Spermatheca; 17. female sternite VIII; 18. gonocoxites. 19–21. T. verunkae sp. nov. 19. head with rostrum, dorsal view; 20. head with rostrum, lateral view; 21. spermatheca.