Lalagetes howdenorum, Borovec & Skuhrovec, 2018

Borovec, Roman & Skuhrovec, Jiří, 2018, Revision of the species related to Lalagetes subfasciatus Boheman and transfer of remaining Lalagetes species to other genera of Embrithini (Coleoptera: Curculionidae: Entiminae), Zootaxa 4374 (1), pp. 71-90 : 80-81

publication ID	https://doi.org/ 10.11646/zootaxa.4374.1.4
publication LSID	lsid:zoobank.org:pub:BF7D5DED-D50E-456A-A686-7D07F13C552D
DOI	https://doi.org/10.5281/zenodo.5995824
persistent identifier	https://treatment.plazi.org/id/785A3F14-FFAB-AE66-6D82-6806EFFBF81B
treatment provided by	Plazi
scientific name	Lalagetes howdenorum
status	sp. nov.

Treatment

Lalagetes howdenorum View in CoL sp. nov.

( Figs 3B View FIGURE 3 , 6A–F View FIGURE 6 )

Type locality. South Africa, Limpopo, Malta Forest, 21 km W. Trichardtsdal.

Type material. Holotype: ♂, S. AFRICA. Tvl. [ South Africa, Limpopo] , Malta Forest, 21 km W. Trichardtsdal, 23.XII. 1985, 940 m, H. & A. Howden ( SANC) . Paratypes: 5 ♀♀, the same data as holotype ( CMNC, BMNH) .

Description ( Figs 3B View FIGURE 3 , 6A–F View FIGURE 6 ). Body length male 2.08 mm, females 2.13–2.31 mm, holotype 2.08 mm. Body ( Fig. 6A View FIGURE 6 ) dark brownish; antennae and legs paler, reddish brown, clubs blackish, very short basal part of clubs brownish. Elytra with large, rounded appressed slightly imbricate scales, finely longitudinally striate, 3–4 across width of one interval; pronotum and head with rostrum with smaller appressed scales than those on elytra, distinctly depressed at middle. Perpendicularly erect setae on elytra slender, lancet-shaped, pointed apicad, at midlength distinctly narrower than diameter of one appressed scale, distance between two setae about equal to length of one seta, weakly longer than width of interval; pronotum and head with rostrum with similar setae, but shorter and slightly wider; scapes and outer side of femora and tibiae with subspatulate setae, on tibiae somewhat longer than on scapes and femora. Body vestiture greyish to ligth brownish, with indistinct, not contrast, light brownish transverse stripe on inner 6 intervals at midlength and on inner 8 intervals at posterior declivity.

Rostrum ( Figs 6A–C View FIGURE 6 ) in females 1.27–1.30 × as wide as long, widest at base and moderately tapered anteriad, at base 1.17–1.18 × as wide as at apex, with slightly concave sides. Epifrons narrow, at base distinctly narrower than distance between eyes, at base almost equally wide as at apex, with weakly concave sides; when cleared of scales slightly shallowly depressed, matt, with narrow carina at lateral border and one short median at basal half; vertex distinctly longitudinally striate along the whole length. Antennal scrobes dorsally pit-shaped at anterior half.

Antennae ( Fig. 6A View FIGURE 6 ). Antennal scape weakly regularly curved at midlength, evenly enlarged at apical part, at apex equally wide as club. Segments 1 and 2 long and slender, conical; segment 1 2.2–2.3 × as long as wide and 1.5–1.6 × as long as segment 2, which is 2.2–2.4 × as long as wide; segments 3, 4 and 6 1.2–1.3 × as long as wide; segment 5 1.1–1.2 × as long as wide, segment 7 isodiametric; club 2.0–2.1 × as long as wide.

Pronotum in male 1.52, in females 1.48–1.55 × as wide as long.

Elytra in male 1.08, in females 1.11–1.19 × as long as wide; when cleared of scales with striae creating deepened lines.

Legs ( Figs 6A, D View FIGURE 6 ). Tarsal segment 2 isodiametric; segment 3 1.3–1.4 × as wide as long and 1.6–1.7 × as wide as segment 2; onychium 0.8–0.9 × as long as previous segment.

Male genitalia ( Figs 3B View FIGURE 3 , 6E View FIGURE 6 ). Penis about as long as metatarsus, ventrally widest at base, weakly tapered anteriad with weakly concave sides, apex subtriangular with concave sides. Penis in lateral view weakly curved, slender, with apical part S-shaped. Temones twice as long as body of penis.

Female genitalia. Gonocoxites with very short, hardly visible styli, about as long as wide. Sternite VIII with apodeme 5.4–6.2 × as long as plate; plate subtriangular, twice as wide as long. Spermatheca ( Fig. 6F View FIGURE 6 ) with large, subtriangular corpus and with ramus and nodulus about equally long, oval, distant from each other.

Biology. Unknown.

Distribution. South Africa, Limpopo ( Fig. 4 View FIGURE 4 ).

Derivation of name. Named after collectors of the species, the late Anne T. and Henry F. Howden of Ottawa, Canada.

Differential diagnosis. By its slender pronotum and very narrow epifrons this species is similar only to L. seminulum , from which it can be distinguished by elytral setae slender, lancet-shaped, apically pointed, plate of sternite VIII distinctly wider than long and oval nodulus, distant from ramus.