Salcedia matsumotoi, Balkenohl, 2020

Balkenohl, Michael, 2020, A genus in disguise. Revision of the genus Salcedia Fairmaire, 1899 with descriptions of nine new species (Coleoptera, Carabidae, Scaritinae, Salcediini), ZooKeys 901, pp. 1-81 : 1

publication ID	https://dx.doi.org/10.3897/zookeys.901.39432
publication LSID	lsid:zoobank.org:pub:843F6065-D00E-48E6-9A26-9CEB044BF102
persistent identifier	https://treatment.plazi.org/id/E45ECE64-EF94-4181-8C1A-8141E4137118
taxon LSID	lsid:zoobank.org:act:E45ECE64-EF94-4181-8C1A-8141E4137118
treatment provided by	ZooKeys by Pensoft
scientific name	Salcedia matsumotoi
status	sp. nov.

Treatment

Salcedia matsumotoi View in CoL sp. nov. Figs 17 View Figures 14–19 , 35 View Figures 26–35 , 61 View Figures 58–63 , 76 View Figures 68–76 , 84 View Figure 84

Type material.

Holotype: ♂, with labels and data: white, printed "IVORY COAST 479 m Denguele Classified Forrest (sudanian forest) 09°30'0.6"N, 07°40'51.1"W 6 –14.vi.2018” / "Actinic Light Trap Aristophanous, M., Miles, W., Moretto, P., Outtara. Y. leg. ANHRT: 2018.28, BMNH(E) 2018-153" / "NHMUK013685508 square barcode" (BMNH). Paratypes: 3 ♀♀, same data as holotype but with third label "NHMUK013685506 square barcode", and 013685505, 013685506, 013685507 (BMNH, CBB); 1 ♂, 1 ♀, 7 specs. same data as holotype but with third label "NHMUK013650247 square barcode", 013650248 - 013650252, 013680129 and -38, 014055537 (BMNH, CBB); 1 ♀, with labels and data: white, printed "IVORY COAST 417 m Gbando Village (sudanian forest with gallery forest) 09°34'17.1"N, 06°41'1.1"W 15 –22.vi.2018” / "MV Light Trap. Aristophanous, M., Outtara, Y. leg. ANHRT: 2018.28, BMNH(E) 2018-153" / "NHMUK013650253 square barcode" (BMNH).

Remark.

In one of the paratypes the left front tibia is missing, in another one three tarsomeres of the right intermediate and hind leg are missing.

Diagnosis.

A large sized species, with elongate outline of the elytra with maximum width at middle and the pronotum with nearly complete lateral carinae. The pseudohumerus is obtuse-angular and with a tooth. The antennomeres are elongate. Distinguished most clearly from the most similar species S. putzeysi by the elongate elytra and measurement ratios, the angle of the pseudohumerus, the pronotum with nearly complete lateral carinae, the female coxostylus with different setae pattern, and the different aedeagus.

Description.

Measurements in Table 1 View Table 1 .

Colour and surface: Fuscous, shiny; top of carinae on head, pronotum and elytra as well as margins of pronotum and elytra opaque, covered with pale grey pili; pronotum laterally translucent-hinnuleous, legs and mandibles fuscous, antennae and palpi hinnuleous.

Head: Three-quarters of pronotum width. Outline campanulate. Clypeus wide, straight anteriorly, fused with clypeal wings, separated from supra-antennal plates by obtuse notches, with raised transverse field at middle, separated from frons by broad flat transverse furrow. Frons with two raised paramedian carinae, joining anteriorly into a V-like keel, keel tubercle-like increasing anteriorly, with two small glossy teeth bilaterally anterior to central keel, with a short parallel running carina at each side paralaterally at base; frons separated from supraorbital plates by flattened broad furrows; with conspicuously deep and broad pit at front-eye level; supra-antennal and supraorbital plates margined, margin of supraorbital plate distinctly raised, carina-like, with indistinct tubercle anterior hind angle; supra-antennal plates vaulted. Basal border with broad emargination at middle, angled laterally (angle around 122°). Eyes large, convex, genae flattened, parts of eyes visible from above, with indistinct triangle shape in lateral view. Antenna with segments five to ten elongate (L/W 1.24), densely pubescent, segments two to four scarcely pubescent, scapus with sub-elongate reticulation. Labrum like a flat triangle anteriorly. Mandible moderately short, wide, slightly arcuate at apex. Mentum small, ovoid, without tooth, with isodiametric reticulation; epilobes wide, projecting and angled anteriorly, margined anteriorly and slightly medially, surface covered with small pits.

Pronotum (Fig. 35 View Figures 26–35 ): Outline rectangular, transverse, somewhat smaller than a quarter wider than long. Lateral margin slightly and regularly convex, maximum width at middle. Lateral margin distinctly crenulated, with 13 tubercles, tubercle anterior basal angle slightly more prominent, with two notches at posterior angles. Base straight laterally, with declining flat keel at middle pointing posteriorly. Disc convex in lateral view, with two distinctly raised paramedian carinae parallel to median line and distinctly diverging posteriorly, with slight transverse notches, with median line long, broad anteriorly and narrow posteriorly, with two additional carinae bilaterally at base, joining with the paramedian carinae and forming tooth-like tubercle at base pointing posteriorly, with distinct anterior extension, with inner lateral carina of irregular structure, with outer lateral carinae becoming indistinct anteriorly. All carinae sub-crenulate. Lateral margin broadly wing-like bent up, with six large and deep transverse pits, the basal ones partly separated into two smaller pits. Space between carinae and pits smooth.

Elytron: Indistinctly depressed in anterior third (lateral view), convex in frontal view. Elongate, slightly and regularly convex laterally, maximum width at middle. Pseudohumerus obtuse-angular (angle 114°), with projecting tooth. Apex rounded, with small but acute tooth at suture. Disc with interneur six sub-crenulate, interneur two running up to apex as indistinctly convex line, distinctly raised, reaching apex; interneur four running at middle in parallel to interneur six, nearly reaching base, shortened at apex. Interneur five and six with two rows of serial pits distinctly merging transversally.

Hind wings: Fully developed.

Lower surface: Antennal channel of pronotum with isodiametric reticulation. Pseudoepipleura with a row of indistinct pits, transverse apically, lateral margin of elytron indistinctly sub-crenulate. Metepisternum elongate, with moderately narrow longitudinal groove. Metasternum, abdominal sternites with numerous irregularly situated larger pits, sternite one and two with longitudinal reticulation. Last abdominal sternite laterally with irregular reticulation. Sternum four to six slightly sulcate. Last sternite with longitudinal flat keel laterally and at middle, apex somewhat hollowed out and with isodiametric reticulation.

Legs: Profemora with surface indistinctly reticulated. Protibia with robust, slightly curved terminal spine, laterally with five teeth of decreasing size, the basal one with some distance from the others, dorsally and ventrally with two carinae. First tarsomeres distinctly elongated, as long as tarsomeres two to four together.

External sexual dimorphism: Not observed.

Male genitalia (Fig. 61 View Figures 58–63 ): Median lobe long, slender, in dorsal view more evidently curved at end of basal third and in apical quarter, in lateral view nearly straight, with few scattered fine pili, apical part elongated, somewhat distorted, in cross section spoon-like dorsally. Oroficium small. Endophallus with three groups of microtrichia, two near oroficium and one basally. Dorsal paramere of moderate size, slightly bisinuate, with small elongated apophyses; ventral one shaped like a longitudinal spatula, both parameres slightly distorted, both of them hyaline at apex.

Female genitalia (Fig. 76 View Figures 68–76 ): Coxostylus slender, gently broadened to base, distinctly curved, acute at apex, apex somewhat rounded, with seven setae in basal half, one of them larger; SSO near apex with one microtrichium.

Variation: On the pronotum the notches on the paramedian carinae show variability in the distinctness. The outer one of the three lateral carinae is becoming indistinct anteriorly to a different degree.

Etymology.

The species is dedicated to Keita Matsumoto (BMNH) who supported especially this work by intensive searching for Salcedia specimens among the huge West African material in the BMNH.

Distribution

(Fig. 84 View Figure 84 ). Known from Denguele in the north-west of the Ivory Coast.