Plectonotum shipasbamba, Constantin, 2020

Constantin, Robert, 2020, A contribution to the genera Plectonotum Gorham and Hyponotum Wittmer, with the description of sixteen new species from Peru (Coleoptera, Cantharidae), Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 60 (34), pp. 1-27 : 17-20

publication ID	https://doi.org/ 10.11606/1807-0205/2020.60.special-issue.34
publication LSID	lsid:zoobank.org:pub:27019209-D6C3-47EA-8B16-213EC117A891
persistent identifier	https://treatment.plazi.org/id/03BD8143-FF87-DA3C-FEB4-B4FAFD0EF7A7
treatment provided by	Carolina
scientific name	Plectonotum shipasbamba
status	sp. nov.

Treatment

Plectonotum shipasbamba sp. nov.

( Figs. 20 View Figures 17-23 , 43 View Figures 36-46 , 85-86 View Figures 79-92 , 112 View Figures 110-115 , 119 View Figure 119 )

Type material: Holotype ♂ ( MUSM): Peru, Amazonas, provincia de Bongará, Shipasbamba 6 km NW, carretera de la mina, 05°52′32″S, 78°00′00″W, alt. 2,370 m, 10.V.2018, leg. R. Constantin. GoogleMaps Paratypes: 4♂, 3♀, same locality and date as the holotype. Holotype and three paratypes deposited in the collection of the MUSM, oth- er paratypes preserved in author’s collection ( CCo) .

Description: Holotype. Length 4.0 mm. Head black, the clypeus, genae and frons to the middle of the antennal sockets bright yellow. Prothorax, elytra, abdomen and legs black. Antennae black, the first two antennomeres rufous with orange yellow ventral side. Head 0.8 times as wide as pronotum, the clypeus triangularly extend- ed. Eyes developed, bulging, the interocular space 0.58 times as wide as the head. Frons broad, flattened between the eyes with a shallow median longitudinal depression and two short oblique bumps behind the antennal sockets. Temples short, narrowing backwards. Cephalic surface smooth, densely punctate, the punctation as wide as the intervals, covered with thin pale yellowish setae. Antennae 0.82 times as long as the body, the first two antennomeres markedly punctate, the following parallel sided, dull, covered with fulvous setae. Pronotum 1.5 times wider than long, feebly longitudinally and transversally convex. Front edge slightly arched; lateral edge convex, narrowing frontwards, rounded with a bead constricted apically and a short emargination in front of the basal corners. Pronotal surface shiny, densely and distinctly punctate, the punctations slightly smaller than the intervals. Elytra 2.7 times longer than combined width at the base, the punctations strong and disposed along subregular series, irregularly disposed on the apical quarter. Elytral pubescence of long, thin, obliquely erected pale-yellow setae. Aedeagus: tegmen with apex of the lateral lobes convergent in dorsal view, forming a rhomboidal lamina with apical setae in lateral view; apico-ventral apophysis slender, with long tapered tips; lateral sclerites short, with a raised tooth at mid-length; median lobe with a narrow styliform projection.

Dimensions of the holotype: TL = 3.9 mm; AL = 3.2 mm; HW = 0.81 mm; IOW = 0.47 mm; OL = 0.3 mm; IAW = 0.17 mm; PL = 0.67 mm; PW = 1.0 mm; EL = 2.9 mm; EW = 1.06 mm. Length of the antennomeres, in mm: aI = 0.31; aII = 0.13; aIII = 0.31; aIV = 0.33; aV = 0.35; aVI = 0.35 × 0.09; aVII = 0.34; aVIII = 0.32; aIX = 0.29; aX = 0.26; aXI = 0.29. Paratypes ♂: length 3.6-4.1 mm.

Paratypes ♀: Differ from the males by the narrower head, smaller eyes, shorter antennae, and pronotum narrow- er anteriorly, with thin orange-yellow border along the basal edge. Dimensions of one paratype ♀. TL = 3.8 mm; AL = 2.06 mm; HW = 0.67 mm; IOW = 0.43 mm; OL = 0.27 mm; IAW = 0.17 mm; PL = 0.63 mm; PW = 0.96 mm; EL = 2.95 mm; EW = 1.0 mm. Other paratypes ♀: length 3.9-4.0 mm.

Differential diagnosis: Plectonotum shipasbamba sp. nov., is similar to P. leymebamba sp. nov., differing from the latter by the stronger and denser punctation of the head and pronotum, elytral punctations deeply

ysis;lsc = lateral sclerites;llb = lateral lobes or parameres;msi = median sclerite of internal sac;mlb = median lobe;phb = phallobase.Scale bar: 0.2 mm.

marked and disposed in subregular series except on the Type material examined: Known only by the laconic

apex, and pronotal lateral edges regularly convex. description of a female, just mentioning “ Pérou ” as type locality. The collection of Pic (MNHN) hosts a single type

Etymology: The specific name refers to Shipasbamba specimen of Silis longissima Pic which was revealed to

village, close to the type-locality. Noun in apposition. belong to the genus Plectonotum ( Constantin & Chaboo, 2016) . A closer examination confirms that it is a male

Natural history: Collected beating tree foliage on the specimen, presently designated as lectotype. The spec-

hedge of an earth road to an ancient mine. imen is damaged, lacking the elytral pubescence, the apical half of abdomen and most of the tarsi. The orig-

inal labels mention “ Pérou, prov. Huallaga, Rio Mixiollo,

Other remarks and new data on Peruvian Plectonotum 1,200 m, VII-VIII.1900, G.A. Baer (printed)”/” type ”/” Silis longissima n sp”. This classical locality can be placed at

Plectonotum longissimum ( Pic, 1927) , the border of La Libertad, provincia de Pataz and San

designation of lectotype Martin, provincia de Tocache, on Rio Mishollo at 40 km W

( Figs. 13 View Figures 9-16 , 36 View Figures 36-46 , 71-72 View Figures 63-78 , 105 View Figures 93-109 , 119 View Figure 119 ) of Tocache, 08°10′S, 76°57′W (estimate).

Silis longissima Pic, 1927: 139-140 .

Plectonotum longissimum, Constantin&Chaboo,2016:196 .