Horistonotus jaburiensis, Casari, Sônia A., 2011

Casari, Sônia A., 2011, New species of Horistonotus Candèze from Brazil (Coleoptera, Elateridae, Cardiophorinae), Zootaxa 3139, pp. 1-27 : 9

Horistonotus jaburiensis sp. nov.

(Figs. 22–29, 128–130)

Holotype (male). [ Brazil]. Canindé do S[ão] F[rancis]co (SE), (Faz[enda] Jaburu), 24.VIII.2000, am.3, (Malaise); Projeto Xingó Biodiversidade Área 3 ( MZSP).

Paratype (male). Canindé do S. Fco. (SE), (Faz. Jaburu), 17.VIII.2000, am.3, (Malaise); Projeto Xingó Biodiversidade (dissected) ( UFPE).

Holotype (male). Body length: 8.2 mm.

General integument reddish-brown and shiny with antennae and legs lighter. Pubescence yellowish, fine, long, dense and decumbent, intermingled with pubescence longer, bristle and sparse.

Frons slightly convex, longer than wide; anterior margin prominent, wide, rounded and upwards directed; secondary carina present; punctation fine, dense and heterogeneous. Antennae (Fig. 22) not reaching hind angles of pronotum; slightly serrate; antennomere II shorter than III; III–X elongate and triangular.

Pronotum (Fig. 23) as long as wide (length including hind angles), almost parallel at basal half, slightly narrowed anteriorly; moderately convex; punctation fine, dense and heterogeneous, coarser near anterior margin; hind angles wide and backwardly directed, with rounded apex; posterior margin notched and with a flattened rounded tubercle at middle; lateral carina complete. Hypomeron with punctation moderately fine, dense and heterogeneous. Pronotosternal suture almost straight, opened anteriad not forming anterior channel. Prosternum with punctation fine and moderately dense; prosternal spine short, flattened laterally with truncate apex. Scutellum pentagonal, longer than wide. Metacoxal plate wide, strongly narrowed on lateral half. Two well developed tibial spurs (Fig. 130); tarsal claws (Figs. 128, 129) with well developed sharp tooth at middlength. Last ventrite transverse, subtriangular with rounded apex; punctation moderately coarse, weak and dense. Elytra wider than prothorax, with apex narrowed and conjointly rounded; humerus carinate laterally at base (stria 7); striae grooved with row of coarse punctures; interstices very convex.

Paratype (male). Body length: 6.7 mm.

Tergite VIII (Fig. 24) wider than long, slightly narrowed apicad; lateral and anterior margins rounded; with short setae on distal third. Sternite VIII (Fig. 26) wider than long; anterior margins strongly notched forming two setose lobes. Sternite IX (Fig. 27) elongate with anterior margin rounded; with setae moderately long near apex. Tergite IX (Fig. 25) wider than long; wide- and deeply notched medioanteriorly; notch inverted U-shaped, surpassing a half of tergite length; tergite X elongate gradually narrowed apicad; inserted at apex of tergite IX; microspined near apex. Aedeagus (Figs. 28, 29): basal piece slightly longer than wide, wider than parameres in short basal area. Parameres separated, strongly narrowed laterally at base and gradually narrowed on distal fourth; apical region narrow and cuneiform, with long subapical ventral seta; apex rounded; median lobe (excluding basal struts) long and wide, wider near base, slightly narrowed apicad; apex rounded; 0.5 time parameres length.

Etymology. The specific epithet is a derivative of the Portuguese word “Jaburu” name of the farm where the material was collected.

Remarks. H. jaburiensis is recognized by integument reddish-brown with antennae and legs lighter. It is similar to H. nordestinus , but it is larger and more sparsely setose and presents antennomere II elongate and shorter than III and lateral carina of pronotum complete. Additionally, the punctation of pronotum and the aedeagus shapes are different in both species.

Distribution. Brazil: Sergipe.