Heilus vanini Lira, De Sousa & Marques, 2023

Lira, Aline De Oliveira, Sousa, Wesley Oliveira De & Marques, Marinêz Isaac, 2023, Four new species of Heilus Kuschel 1955 (Curculionidae, Molytinae, Molytini, Hylobiina) from Brazil, Zootaxa 5336 (2), pp. 206-216 : 211-212

Heilus vanini Lira, De Sousa & Marques sp. nov.

( Figures 3A–I )

http://zoobank.org/ urn:lsid:zoobank.org:act:C48CDF9E-EC70-4AA3-9A8B-B9AEF040C6DE

Diagnosis. This new species is distinguished from other Heilus species by the following combination of characters: pronotum with transverse granules, these slightly elevated on pronotal disc, higher on sides; elytra densely covered with transverse granules, these slightly elevated, with fine whitish scales, with row of yellowish flattened scales, distributed transversally between striae 1 and 9 at beginning of apical third of elytra; interstriae flat with fine punctures; aedeagus with apodemes of median lobe 1.3 times longer than median lobe, rounded laterally, with two tufts of long setae laterally on apical margin; endophallite with sclerotized bifurcation. Heilus vanini is most similar to H. ochrifer but can be distinguished from that species by the roughness of the tegument, with longer rounded granules in H. ochrifer that are slightly elevated in H. vanini .

Description. ( Figs. 3A–B ) Length (pronotum and elytra) of males and females 9.1 to 11.1 and 8.0 to 10.7 mm, respectively. Integument. Bright, black, or reddish. Rostrum 1.3 times longer than pronotum. Eyes. Interorbital distance varying from 0.1 to 0.3 mm. Thorax. Pronotum 1.4 times wider than long, sides rounded, with fine whitish scales; densely covered with transverse granules, these slightly elevated on pronotal disc, higher on sides. Elytra 1.5 times longer than wide, flat to apical calli, rounded at apex; densely covered with slightly elevated transverse granules; with fine whitish scales, with irregular rows of yellowish flattened scales distributed transversally between striae 1 and 9 at beginning of apical third of elytra; interstriae flat with fine punctures; apical elytral calli elevated. Male genitalia ( Figs. 3C–E ). Aedeagus with apodemes of median lobe 1.3 times longer than median lobe, apical margin rounded laterally, with two tufts of long setae laterally; endophallite bifurcate. Tegmen with dorsal lobes, manubrium elongate; manubrium 0.5 times longer than dorsal lobes. Female genitalia ( Figs. 3F–I ). Coxites with scarce short setae at apex and sides, styli with apex covered with elongate setae; bursa copulatrix rounded, with spermathecal duct median and slender, inserted close to junction of bursa copulatrix and common oviduct; spermathecal capsule curved, collum elongate and fine, ramus non-prominent; spermathecal gland 3.7 times longer than spermathecal capsule, thinner distally. Abdominal tergite VIII subtriangular, with elongate setae at apex and central region. Abdominal sternite VIII with apical lobes 1.4 times wider than long, with elongate dense setae at apex, shorter setae on sides.

Dimensions (mm): Males/females, respectively.TBL: 9.1–11.1/8.0–10.7; TRL: 2.6/1.7–2.7; MHx:2.9–3.9/2.4– 3.4; RAW: 0.4–0.6/0.4–0.6; RBW: 0.4–0.6/0.4–0.7; IO: 0.1–0.3/0.3; PnL: 2.6–2.9/2.0–2.9; PnMW: 3.4–3.9/3.4; PnBW: 2.4–3.1/2.1–3.0; EL: 4.7–6.4/5.2–6.6; EW: 3.1–3.9/2.9–4.1.

Type material. Holotype male dissected [printed label with red border] ( MZSP); BRAZIL. Rondônia: Ouro Preto, HOSP. CACAU Col-Mendes, NOV.1986, Heilus SP S. A. Vanin det. 1987, 59, Heilus sp. 6, Lira, A.O. det. 2020. Paratypes (6 males, 6 females) [printed label with black border]: 1 male, Rondônia, Forte Príncipe da Beira, 19.xi-3.xii.1967, G. R. Kloss, Heilus sp. 6, Lira, A.O. det. 2020; 2 female (1 dissected) ( MZSP); 1 male, Rondônia, Nova Califórnia, 11.xii.2003, Thomazini, M. J., cupuaçu 4, Heilus sp. 6, Lira, A.O. det. 2020 ( MZSP); 1 female, Amazonas, Benjamin Constant- Rio Javari, alto Amazonas xi.1961, Dirings, Heilus sp. 6, Lira, A.O. det. 2020 ( MZSP); 1 female, Acre, Rio Branco, 6.x.1992, em cupuaçuzeiro, V. Silva col., Heilus SP S. A. Vanin det. 1992, Heilus sp. 6, Lira, A.O. det. 2020 ( MZSP); 1 female, Pará, Obidos, baixo Amazonas Pará, vii.1960, Dirings, Heilus sp. 6, Lira, A.O. det. 2020 ( MZSP); 1 male, Pará, Obidos, bx, / Amazonas, Museu Dirings, iv.1958, Heilus sp. 6, Lira, A.O. det. 2020 ( MNRJ); VENEZUELA. 1 male, Venezuela, KRAN; Nacht: Blatt Qualea tr. 178, 12.i.1999, leg. S. Kirmse, CUR: 17; M, tot: 22/1/99, Heilus SP. 3, S. A. Vanin det. 1999, Heilus sp. 6, Lira, A.O. det. 2020 ( MZSP); 1 male, Amazonas, Orinoco region of Venezuela, KRAN; Nacht: Goupia glabra 909, 3.ii.1999, leg. S. Kirmse, mit Bļten, M; CUR: 17Z, eingelegt: 13/3/99, Heilus sp. 3, S. A. Vanin det. 1997, Heilus sp. 6, Lira, A.O. det. 2020 ( MZUSP); BOLIVIA. 1 male, Bolívia, Buena Vista, Pcia Ichilo-Buenavista, ii.1950, A. Martinez leg., Heilus sp. 6, Lira, A.O. det. 2020 ( MZSP); 1 female, Bolívia, Buena Vista, Pcia Sara-Nueva Maka, iii.1950, A. Martinez, 63, Heilus sp. 6, Lira, A.O. det. 2020 ( MZSP).

Remarks. Adults have been found on cocoa ( Theobroma cacao L.) ( Malvaceae ), cupuaçu ( Theobroma grandiflorum (Willd. ex Spreng.) K. Schum. ) ( Malvaceae ), Goupia glabra Aubl. (Goupiaceae) , and Eschweilera romeucardosi S. A. Mori. (Lecythidaceae) according to label data.

Geographical distribution. This species is distributed in Brazil in Rondônia, Amazonas, Acre, and Pará states. It is also known from Inchilo and Sara provinces in Bolivia and in Venezuela from the Orinoco region , state of Amazonas.

Etymology. The specific epithet is a genitive noun honoring Dr. Sergio Antonio Vanin (in memoriam) for his great legacy to the knowledge of Curculionidae in Brazil.

Figures

FIGURE 3. Heilus vanini, holotype male: A. Dorsal view. B. Lateral view. C. Aedeagus. D. Endophallite. E. Tegmen. F. Female genitalia. G. Spermathecal capsule. H. Abdominal tergite VIII. I. Abdominal sternite VIII.