Plectonotum carpish, 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 : 6

publication ID 10.11606/1807-0205/2020.60.special-issue.34

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Plectonotum carpish

sp. nov.

Plectonotum carpish sp. nov.

( Figs. 4 View Figures 1-8 , 27 View Figures 24-35 , 53-54 View Figures 47-62 , 96 View Figures 93-109 , 119 View Figure 119 )

Type material: Holotype ♂ ( MUSM): Peru, provincia de Huánuco, túnel de Carpish, lado norte, camino viejo, 09°43′12″S, 76°05′56″W, 2,705 m, 15.IV.2013, leg. R. Constantin & L. Huamán Cuespán. GoogleMaps Paratypes: 1♂, 2♀, same locality and same date as holotype, leg. R. Constantin & L. Huamán Cuespán GoogleMaps ; – 1♂, same locality, 01.IV.2015, leg. R. Constantin GoogleMaps ; – 1♂, same locality, 30.III.2017, leg. R. Constantin. GoogleMaps Holotype and two paratypes deposited in MUSM, other paratypes preserved in author’s collection ( CCo) .

Description: Holotype. Length 3.8 mm. Head, pronotum and elytra brown, the lateral margins and the basal edge of pronotum brownish yellow. Antennae brown, the first two antenomeres yellow. Legs brownish yellow. Abdomen brown. Head 0.77 times as wide as pronotum, the clypeus short and rounded. Eyes short, strongly convex, bulging, the interocular space greater than half the width of the head. Frons slightly depressed behind the antennal sockets, flattened between the eyes. Temples strongly narrowing backwards. Cephalic surface smooth, without visible punctation and sparse adpressed thin yellowish setae. Antennae nearly as long as the body, the first two antennomeres smooth, the following parallel sided, slightly warty, covered with brown setae. Pronotum 1.64 times wider than long, transversally convex. Front edge right, rear edge feebly arched, lateral edge straight and narrowing frontwards with a narrow bead and a small emargination in front of the obtuse basal corners. Pronotal surface shiny, thinly punctate and shallowly wrinkled.Elytra 3.1 times longer than combined width at the base, markedly and irregularly punctate with transverse wrinkles, covered with dense, long (0.1-0.13 mm), recumbent yellow setae. Tarsi elongate, the metatarsus as long as the three-quarters of metatibia, the first tarsomere as long as the three following together. Sternite VIII long, apically rounded. Aedeagus: tegmen with lateral lobes reduced and notched posteriorly, the apico-ventral apophysis ventrally recurved; lateral sclerites and median lobe narrow.

Dimensions of the holotype: TL = 3.1 mm; AL = 2.9 mm; HW = 0.59 mm; IOW = 0.35 mm; OL = 0.2 mm; IAW = 0.15 mm; PL = 0.47 mm; PW = 0.77 mm; EL = 2.4 mm; EW = 0.76 mm. Length of the antennomeres, in mm: aI = 0.25; aII = 0.11; aIII = 0.22; aIV = 0.24;

aV = 0.24; aVI = 0.22; aVII = 0.22; aVIII = 0.22; aIX = 0.22; aX = 0.21; aXI = 0.22. Paratypes ♂: length 2.7-3.2 mm, mean: 3.0 mm.

Paratypes ♀: Differ from the males by the smaller eyes, the shorter antennae, the long subparallel temples, and the pronotum uniformly brown. Dimensions of one paratype ♀. TL = 3.0 mm; AL = 1.56 mm; HW = 0.51 mm; IOW = 0.34 mm; OL = 0.18 mm; IAW = 0.17 mm; PL = 0.5 mm; PW = 0.84 mm; EL = 2.25mm; EW = 0.84mm. Other paratype ♀: length 2.6 mm.

Differential diagnosis: Plectonotum carpish sp. nov., is similar to the south Ecuadorian species P. incisum Constantin, 2008 by the habitus, colour pattern and pronotal shape. It differs from the latter in the smaller size, the pronotum narrowing frontward and the aedeagus shape.

Etymology: Specific epithet is related to the name of the Carpish pass, a remarkable hotspot of biodiversity between Huanuco and Tingo Maria. Noun in apposition.

Natural history: Collected beating the foliage of the trees, mainly large Asteraceae , along the ancient road.













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