Plectonotum celendin, 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 : 6-7

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-FF92-DA29-FC09-B75AFD6EFAE7
treatment provided by	Carolina
scientific name	Plectonotum celendin
status	sp. nov.

Treatment

Plectonotum celendin sp. nov.

( Figs. 5 View Figures 1-8 , 28 View Figures 24-35 , 55-56 View Figures 47-62 , 97 View Figures 93-109 , 119 View Figure 119 )

Type material: Holotype ♂ ( MUSM): Peru, Cajamarca, provincia de Celendin , 17 km E of Celendin, flowering shrubs, 06°50′42″S, 78°06′53″W, alt. 2,915 m, 06.V.2018, leg. R. Constantin. GoogleMaps Paratypes: 3♀, same locality and date as the holotype. Holotype and one paratype deposited in the collection of the MUSM,other paratypes preserved in author’s collection ( CCo) .

Description: Holotype ♂. Length 3.0 mm. Head, prothorax, elytra and abdomen black. Antennae dark brown, the first two antennomeres reddish brown. Legs brown, the basal half of femora and the apical half of tibiae rufous. Head 0.75 times as wide as the pronotum, the clypeus protruding and medially notched.Eyes rather short, bulging, the interocular space 0.64 times as wide as the head. Frons flattened between the eyes. Temples short, narrowing backwards. Cephalic surface bright, thinly punctate, with yellowish setae. Antennae three quarters as long as the body, the first two antennomeres smooth, the following slightly triangular, dull, covered with short rufous setae.Pronotum 1.5 times wider than long,strongly convex,considerably wider at mid-length than both elytra. Front border arched, lined by a concave margin with a raised edge, rear edge feebly bi-sinuate, lateral edge convex with a long shiny bead and a short emargination in front of the obtuse basal corners. Pronotal surface shiny, strongly punctate, with punctations as wide as the intervals. Elytra 2.6 times longer than combined width at the base, strongly and irregularly punctate, covered with long, thin, recumbent pale-yellow setae. Aedeagus: teg- men with apico-ventral edge of the lateral lobes without median apophysis; apex of the lateral lobes short, triangular, the rear face with two brush-like groups of short setae; median lobe dorsally recurved, apically broad and notched; lateral sclerites broad, with rounded tips.

Dimensions of the holotype: TL= 3.0 mm;AL = 2.25 mm; HW = 0.75 mm; IOW = 0.48 mm; OL = 0.22 mm; IAW = 0.19 mm; PL = 0.66 mm; PW = 1.0 mm; EL = 2.1 mm; EW = 0.86 mm. Length of the antennomeres, in mm: aI = 0.28; aII = 0.12; aIII = 0.17; aIV = 0.21; aV = 0.21; aVI = 0.21 × 0.07; aVII = 0.21; aVIII = 0.20; aIX = 0.19; aX = 0.17; aXI = 0.22.

Paratypes ♀: Differ from the male by the narrower head, the less convex eyes, and the shorter antennae. Dimensions of one paratype ♀. TL = 3.5 mm; AL = 2.0 mm; HW = 0.74 mm; IOW = 0.52 mm; OL = 0.20 mm; IAW = 0.23mm;PL= 0.73mm; PW= 1.1 mm;EL= 2.55 mm; EW = 1.05 mm.Other paratypes ♀: length 3.2 and 3.7 mm.

Differential diagnosis: Plectonotum celendin sp. nov., is similar to P. altomayo sp. nov., by the pronotal bead and elytral punctation. It differs from the latter in the smaller size, the wider pronotum, the irregularly aligned elytral punctations and the aedeagus with lateral lobes apically pubescent.

Etymology: Specific epithet is related to the provincial name of a remarkable station between Celendin and Leymebamba. Noun in apposition.

Natural history: Collected beating the foliage of flowering bushes, mainly Asteraceae , in the morning.