Descriptions of new genera and new species of Western Hemisphere checkered beetles (Coleoptera, Cleroidea, Cleridae) Author Opitz, Weston text Linzer biologische Beiträge 2019 2019-12-20 51 2 959 1076 journal article 10.5281/zenodo.3746744 3ab3ca17-b957-454a-bdcf-d664740802e6 0253-116X 3746744 Pelonium atrigonatium OPITZ nov.sp. ( Figs 98 , 154 , 260 , 360 ) Holotype : ♂. Type locality: COSTA RICA : Osa Peninsula , prov. Puntarenas , N 08°24.273' W 083°20. 265' , Host: 13. Tachigall tessmannaii Copa, 29-XII-2013 - 4-I-2014 , Coll. Morillo. Lopez & Berkov. A second label reads: CR 69, Weevil 69 ( FSCA ) . Paratype : One specimen. Same label information as the holotype ( WOPC , 1). D i a g n o s i s: The genus Pelonium SPINOLA was revised in 2018 ( OPITZ 2018b ). This work included a key to species groups and species. The available specimens of Pelonium atrigonatium key out to P. nigroclavatum CHEVROLAT from which P. atrigonatium specimens are distinguished by showing elytral asetiferous punctures that nearly extend to the elytral apex, black distal marking on the femora, and more oblong pronotum. D e s c r i p t i o n: Size: Length 9.0 mm; width 3.0 mm. Form: As in Fig. 360 . Color: Cranium and pronotum castaneous; antennal capitulum, prothoracic venter and pterothorax black; antennal fundus testaceous; elytra bicolorous, mostly yellow, with 3 seta of small black markings, 3 on/near humeral angle, 3 at elytral middle, 2 near elytral apex; legs bicolorous, mostly yellow, distal limits of femora and basal limits of tibiae black; abdomen yellow. Head: Cranium coarsely punctate; antenna ( Fig. 98 ) capitate, funicular antennomeres shorter towards capitulum, capitular antennomeres 9 and 10 triangular and slightly angular in anterodistal region, antennomere 11 ovoid; eyes large, coarsely facetted, eye wider than frons (EW/FW 42/31). Thorax: Pronotum ( Fig. 154 ) oblong (PW/PL 120/155), disc coarsely punctate, lateral tubercles well developed; elytra sculptured with 11 striae of large asetiferous punctures that best defined in elytral basal 1/3 rd , punctures obsolete near posterior region sutural margin, punctures end very near elytral ape (EL/EW 390/95). Abdomen: Pygidium scutiform; aedeagus as in Fig. 260. N a t u r a l H i s t o r y: The 2 available specimens were collected during December. D i s t r i b u t i o n: This species is known from Costa Rica . E t y m o l o g y: The trivial name, atrigonatium , is a compound Latin/Greek name that stems from the Latin atri (= black) and the Greek gonatium (= knees); with reference to the black coloration on the distal region of the femora.