New genera of Dicrepidiina from the Neotropical Region (Coleoptera, Elateridae, Elaterinae, Ampedini) Author Casari, Sônia A. text Zootaxa 2013 3721 2 143 156 journal article 10.11646/zootaxa.3721.2.2 15619793-5d20-4762-8549-bcbfaa6a5b27 1175-5326 221883 D8D6A95B-7697-4613-A54E-960F10F5DD3C Paratractosomus sulciventris sp. nov. ( Figs 23–40 , 45–48 ) Type material. Holotype . BOLIVIA . Santa Cruz: 4Km N Bermejo 1000m , 16–21 October 2007 , J. Wappes & A. Cline; Ref. Los Volcanes 18o 06’S 63o36’W (MNKM). Paratypes . BOLIVIA . Santa Cruz: Florida 4 Km N Bermejo, 25–29 October , 2011, Wappes & Skillman; Refugio los Volcanes 18o 06’S 63o36’W , 1000–1200 m (dissected) (MZSP); 4Km N of Bermejo Ref. los Volcanes 1350 m , 8–11 December , 2011, 18 o 06’S 63o36’W , Wappes, Lingafelter, Morris & Woodley; 2012 Loan ACMT, J. Wappes 2 exs (ACMT, MNKM); Florida, 4Km N Bermejo, 29.X.2011 coll. Skillman & Wappes; Refugio los Volcanes 18o 06’S 63o36’W , 1000–1200 meters (FWFC); Florida 4 Km N Bermejo, 29.X.2011 , Coll. Skillman & Wappes; Refugio los Volcanes, 18o 06’S 63o36’W , 1000–1200 meters; FWSC loan Feb. 2012 (MZSP). Length: 12.5 mm ( holotype ); 10–13 mm ( paratypes ). Integument very shiny ( Figs 45–48 ). Coloration reddish-brown with head black and elytra yellowish-brown; antennae brownish; elytra marginate by reddish-brown portion. Pubescence white, long and sparse on head and ventrally (including legs); pronotum glabrous; elytra with setae only at lateral margins; antennae with goldenyellow setae, very dense and short, some very long; last ventrite more densely setose in female. Frons ( Figs 24 , 45–47 ) wider than long; convex; concave in a small area parallel to anterior margin; anterior margin slightly rounded, strongly carinate, surpassing frontoclypeal region; punctation moderately coarse and sparse. Antenna ( Figs 23 , 46 ) reaching hind angles of pronotum in both sexes; in male surpassing hind angles of pronotum by about one antennomere; serrate with 11 antennomeres; 3rd antennomere elongate, shorter than 4th. Labrum ( Fig. 34 ) transverse, prominent medioanteriorly; many long setae of varied sizes distributed on two anterior thirds and some short setae near base. Mandibles ( Figs 36–39 ) robust, slightly asymmetrical; in all specimens examined distal tooth more sharpened at right mandible; raised and with longitudinal sinuous carina dorsomedially; many long laterodorsal setae; molar area well developed covered by piliform setae. Maxilla ( Fig. 40 ): cardo constricted at apex with some long setae at basal half; basistipes elongate, subtriangular with long setae on basal two thirds; medistipes transversely emarginated at base; with longitudinal carina parallel basistipes; long setae externally carina, forming irregular longitudinal row near basistipes; tiny setae irregularly distributed on wide area at other side of carina; galea and lacinia brush-like; galea more developed with spatulate setae. Palpiger setose; palpus setose and with four palpomeres: palpomere basal short, as wide as long; two median palpomeres elongate and widened near apex; palpomere distal securiform. Labium ( Fig. 35 ): postmentum wider than long, slightly trapezoidal with setae of varied sizes, one pair longest; prementum with long setae near middle arranged in an irregular row. Palpiger with many short setae; palpus setose with three palpomeres: palpomere basal short, almost transverse; palpomeres median and distal elongate and widened apicad. FIGURES 23–33. Paratractosomus sulciventris sp. nov. 23, antenna; 24, frons and pronotum; 25, prothorax (lateral); 26, prosternal spine and mesosternal cavity; 27, meso- and metathorax (lateral); 28, sternite VIII; 29, sternite IX; 30, tergite VIII; 31, tergites IX–X; 32, 33, aedeagus (dorsal, ventral). Bars = 5mm, except figs 23–27 = 1mm. FIGURES 34–40. Paratractosomus sulciventris sp. nov. 34, labrum; 35, labium; 36–39, mandible (dorsal, ventral); 40, maxilla. Bars = 1mm. Pronotum ( Figs 24, 25 , 45, 46 ) slightly wider than long (including hind angles), strongly narrowed anteriorly and slightly narrowed at base of hind angles, making lateral margins slightly sinuous; strongly convex; lateral carina ( Figs 25 , 46, 47 ) almost reaching anterior margin, partially visible dorsally; hind angles long, divergent and weakly carinate; punctation moderately fine, weak and sparse, more visible anteriorly. Hypomeron ( Figs 25 , 46, 47 ) with punctation moderately fine and sparse. Pronotosternal sutures ( Figs 25 , 47 ) wide and open frontally forming a well developed prosternal groove. Punctation of prosternum ( Figs 46, 47 ) sparse, coarser than that of hypomera. Prosternal spine ( Figs 25, 26 , 47 ) flattened from between procoxae to apex; compressed laterally, widened apicad; apex irregularly emarginated forming two lobes: dorsal lobe larger and rounded and ventral lobe sharpened. Mesosternal cavity ( Figs 26, 27 , 47, 48 ) wide, U-shaped with borders moderately wide and horizontal on basal half and declivous at anterior half. Mesepisternum ( Figs 27 , 47, 48 ) not forming part of margin of mesocoxal cavity. Metasternum ( Figs 47, 48 ) with a deep boomerang-like furrow, bordered anteriorly by carina, behind mesosternal cavity. Metacoxal plate ( Figs 27 , 47, 48 ) slightly narrowed laterally with well developed tooth at free margin. Tibial spurs present. Tarsomeres 1–3 ( Figs 46–48 ) with well developed lamella beneath; lamellae increasing in size apically. Scutellum elongate, pentagonal and declivous anteriorly; distal margin rounded. Elytra ( Figs 45, 46 ) smooth, wider than pronotum on basal half (except basal margin), gradually narrowed on distal half; apex narrow with tiny sutural spine; striae marked by row of rounded translucent punctures. FIGURES 41–48. Habitus. 41, 42, Paranoplischius modestus sp. nov. (dorsal, lateral); 43, 44, Paranoplischius nigellus sp. nov. (dorsal, lateral); 45–48, Paratractosomus sulciventris sp. nov. (dorsal, lateral, ventrolateral). FIGURES 49–75. Antenna: 49, Achrestus flavocinctus (Candèze) ; 50, A. venustus Champion ; 51, Adiaphorus gracilis Schwarz ; 52, Anoplischiopsis bivittatus Champion ; 53, Blauta cribraria (Germar) ; 54, Calopsephus apicalis (Schwarz) ; 55, Catalamprus angustus (Fleutiaux) ; 56, Dicrepidius brasilianus Casari ; 57, Cyathodera longicornis Blanchard ; 58, Lampropsephus cyaneus (Candèze) ; 59, Loboederus appendiculatus (Perty); 60, Pantolamprus mirabilis Candèze ; 61, 62, Proloboderus crassipes Fleutiaux (female, male); 63, Sephilus formosanus Schwarz ; 64, 65, S. frontalis Candèze (male, female); 66, Sphenomerus antennalis Candèze. Frontoclypeal region: 67, Dicrepidius ramicornis (Palisot de Beauvois); 68, Rhinopsephus apicalis (Schwarz) . Prosternal spine: 69, Anoplischius bicarinatus Candèze. Metacoxal plate: 70, Atractosomus amazonicus Casari ; 75, Dayakus angularis Candèze. Maxilla : 71, Pseudolophoeus guineensis (Candèze) . Borders of mesosternal cavity and prosternal spine: 72, Spilus atractomorphus Candèze. Frons and pronotum: 73, Loboederus appendiculatus (Perty); 74, Paraloboderus glaber Golbach. Bars = 1mm, except figs 67, 68 = 2mm; fig. 69 = 0.5mm. Male. Tergite VIII ( Fig. 30 ) longer than wide, slightly narrowed apicad; distal margin rounded; translucent in median basal area; marginate by long setae on distal ¾. Sternite VIII ( Fig. 28 ) wider than long, slightly narrowed apicad; distal margin emarginated at middle forming a wide rounded lobe each side; translucent with wide lateral and anterior yellowish bands (interrupted medioanteriorly) united to narrow transverse band near base; long setae near anterior and lateral margins. Sternite IX ( Fig. 29 ) elongate, widened near middle; distal half slightly narrowed apicad; apex rounded; long setae on distal half. Tergite IX ( Fig. 31 ) slightly wider than long, slightly narrowed apicad; densely punctate laterally; distal margin gradual and deeply emarginate at middle; long lateral setae near fore angles. Tergite X elongate, widened near middle; punctate; long setae near margins of distal half. Aedeagus ( Figs 32, 33 ) narrow, 3.6 times longer than wide; basal piece long, 0.73 times paramere length (dorsally); parameres wider on basal third, with apex cuneiform; subapical region with setae of varied sizes dorsal and ventral; some dorsal setae very long; median lobe (excluding basal struts) 0.85 times paramere (dorsally) length; narrow, gradual- and slightly narrowed apicad; subapical region constricted. Etymology . The specific epithet is a derivative of the Latin words sulci (=furrow) + ventris (=venter), referring to the furrow on the metasternum.