Hammatoderus migueli, Botero, Juan Pablo & Santos-Silva, Antonio, 2017

Botero, Juan Pablo & Santos-Silva, Antonio, 2017, Four new species, taxonomic, and nomenclatural notes in Hammatoderus Gemminger & Harold, 1873 (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4231 (3), pp. 377-397 : 382-384

Hammatoderus migueli sp. nov.

( Figs. 6–10 )

Description. Holotype male. Integument dark-brown, black on some areas, mainly mandibles and base of elytra; anteclypeus reddish-brown.

Head. Frons finely, slightly sparsely punctate centrally close to clypeus, coarsely, abundantly punctate laterally and close to antennal tubercles; with abundant, yellowish pubescence, not obscuring integument, except narrow band with yellow pubescence close to lower eyes lobes; with long, erect, sparse, brownish setae laterally. Area between antennal tubercles coarsely, deeply punctate (punctures coarser than on sides of frons); with yellowish pubescence (yellow close to upper eye lobes), interspersed with long, erect, sparse, yellowish setae close to upper eye lobes. Remaining surface of vertex finely, sparsely punctate, mainly laterally; with yellowish pubescence, not obscuring integument. Area behind upper eye lobes finely, sparsely punctate, with narrow band with yellow pubescence close to eye, yellowish on remaining surface. Area behind lower eye lobes tumid close to eyes; finely, sparsely punctate on tumid area, finely, striate-punctate close to prothorax (gradually less striate toward ventral side); with narrow band with yellow pubescence close to eye, yellowish on remaining tumid area, distinctly sparser on striate-punctate area (mainly toward ventral side). Antennal tubercles elevated, close each other on base; finely, sparsely punctate; with yellowish pubescence not obscuring integument. Coronal suture slightly distinct close to clypeus, distinct from middle of frons to anterior margin of prothorax. Genae 0.45 times width of lower eye lobe; with transverse, sinuous, shallow sulcus after middle, finely, sparsely punctate (mainly toward clypeus), except smooth, moderately small, sub-triangular area close to eye; with yellowish pubescence, not obscuring integument, sparser between sulcus and apex, more yellow close to eyes (mainly toward clypeus), except on glabrous smooth sub-triangular area. Gulamentum smooth, glabrous toward prothoracic margin, minutely punctate, with yellowish pubescence toward mentum (distinctly not obscuring integument). Postclypeus coarsely, partially confluently punctate on large central area, smooth laterally; with yellowish pubescence, not obscuring integument on punctate area, glabrous laterally; with long, sparse, yellowish setae directed forward. Labrum coplanar, convex on basal half, distinctly sloped on distal half; finely, sparsely punctate, interspersed with coarser punctures; with short and long, yellowish setae directed forward (mainly on sides of coplanar area). Distance between upper eye lobes 0.10 times length of scape; distance between lower eye lobes in frontal view 0.45 times length of scape. Antennae 2.5 times elytral length, reaching elytral apex at apex of antennomere VI; scape rugose-punctate, with yellowish pubescence, not obscuring integument, more yellow, denser, on base of cicatrix, with moderately short, erect, sparse, brown setae ventrally; antennomeres with yellowish pubescence not obscuring integument; antennomeres III–VI with short, yellowish-brown setae ventrally, gradually sparser toward VI; antennal formula (ratio) based on antennomere III: scape = 0.62; pedicel = 0.12; IV = 0.86; V = 0.79; VI = 0.69; VII = 0.68; VIII = 0.62; IX = 0.60; X = 0.57; XI = 0.91.

Thorax. Prothorax with large, conical median lateral tubercle, curved upward, with blunt apex, about twice as long as distance between upper eye lobes. Pronotum with two transverse sulci, basalmost sub-straight, narrow, distalmost wide, distinctly curved; with three gibbosities: a large, elevated centrally, from apex of basal quarter to slightly after middle, and two oblique gibbosities on each side of apex of central gibbosity; lateral gibbosities and apex of central gibbosity coarsely vermiculate; area on each side of central gibbosity moderately finely vermiculate, with small, distinct, sparse, shiny, glabrous tubercles; area between basal and distal margins and sulci finely, sparsely punctate (sparser centrally); with yellowish pubescence, not obscuring integument, except on glabrous apex of central gibbosity; with yellowish, sparse, erect setae on each side of central gibbosity. Sides of prothorax with small, distinct, sparse, shiny tubercles (mainly in front and behind lateral tubercle); remaining surface finely vermiculate; with yellowish pubescence not obscuring integument; with long, erect, sparse, yellowish setae (mainly behind lateral tubercle). Prosternum with yellowish pubescence not obscuring integument. Prosternal process longitudinally sulcate; with short, sub-erect, abundant, yellowish setae. Mesosternum with yellowish pubescence, not obscuring integument, centrally interspersed with short, erect, abundant, yellowish setae. Mesosternal process with distinct, conical tubercle on center of anterior region; with yellowish pubescence interspersed with short, abundant, sub-erect yellowish setae around tubercle. Mesepisternum, mesepimeron, metepisternum and metasternum with yellowish pubescence, partially obscuring integument. Scutellum with dense, yellowish pubescence, obscuring integument. Elytra. Humerus projected; base sloped between humerus and scutellum; between basal sloped area and scutellum with small, abundant, shiny, glabrous tubercles (this area enlarged toward epipleura); central area close to scutellum coarsely, abundantly punctate, gradually finer, sparser toward apex (laterally the area coarsely punctate almost reaching middle); sloped basal area with dense, yellowish pubescence obscuring integument; basal quarter with irregular macula with dense, pale-yellowish pubescence obscuring integument; distal 3/4 with several irregular maculae with dense, pale yellowish-white pubescence obscuring integument; remaining surface with pale yellowish-white pubescence distinctly not obscuring integument; area close to apex with moderately long, erect, sparse, yellowish-brown setae; apex obliquely truncate; outer angle with long, slightly curved spine; sutural angle rounded. Legs. Femora minutely, sparsely punctate; with yellowish pubescence not obscuring integument, interspersed with short, erect, brownish setae. Protibiae finely, moderately abundantly punctate (mainly toward apex); with yellowish pubescence (longer, yellowish-brown close to apex), not obscuring integument dorsally and laterally, interspersed with short, erect, brownish setae; with dense, sub-erect, yellowish-brown setae ventrally, obscuring integument. Mesotibiae finely, moderately abundantly punctate; with dense, sub-erect, yellowish-brown setae obscuring integument dorsally and ventrally (distinctly shorter on basal third); laterally with yellowish pubescence not obscuring integument, interspersed with short, erect, yellowish and brownish setae. Metatibiae finely, moderately abundantly punctate; with dense, sub-erect, yellowish-brown setae on distal half of dorsal and ventral side (shorter on ventral side); remaining surface with yellowish pubescence not obscuring integument, laterally interspersed with yellowish setae.

Abdomen. Ventrites finely, sparsely punctate (gradually more abundant toward distal ventrite); with yellowish pubescence not obscuring integument, except narrow distal band with yellow, short, decumbent setae on ventrites I–IV; with short, erect, sparse, brownish setae, distinctly more abundant on ventrite V; distal margin of ventrite V distinctly concave.

Female. Differs from male by the body wider, antennae 1.65 times elytral length, reaching at basal third of antennomere IX, by central distal area of ventrite V slightly depressed, and by the distal margin of ventrite V less concave.

Dimensions (Holotype male / Paratype male / Paratype female). Total length, 29.7/25.4/30.7; prothoracic length, 4.6/4.3/4.8; anterior prothoracic width, 4.9/4.4/5.4; posterior prothoracic width, 5.6/4.9/6.1; widest prothoracic width (between apices of lateral tubercles), 7.3/6.5/7.5; humeral width, 8.8/7.7/9.5; elytral length, 22.2/ 18.5/23.3.

Type material. Holotype male from ECUADOR, Manabi: dint. Puerto Cayo , 21.II.1993, L. Bartolozzi col. ( MNRJ) . Paratypes – male, same data as holotype ( MZSP) ; female, same data as holotype except Portoviejo (no date indicated), Campos R. col. ( MNRJ) .

Etymology. The species epithet is in honor of Miguel A. Monné, one of the leading specialist on the taxonomy of New World Cerambycidae and dear friend of the authors.

Remarks. Hammatoderus migueli sp. nov. differs from H. confusor ( Dillon & Dillon, 1941) as follows: frons in male coarsely punctate laterally; area between antennal tubercles and upper eye lobes with coarse, sub-confluent punctures; lower eye lobes is larger (length and width); scape in male rugose-punctate; basal and distal area of pronotum finely, sparsely punctate; sides of prothorax with moderately abundant small tubercles; elytral maculae with dense pubescence pale yellowish-white; apical spine of the elytra distinctly away from sutural angle. In H. confusor ( Figs. 35–36 ), the frons in male is smooth, the area between antennal tubercles and upper eye lobes is impunctate or, at most, is finely and sparsely punctate, the lower eye lobes is smaller (length and width), the scape in male is smooth or, at most, slightly rugose, the basal and distal area of pronotum are smooth, the sides of prothorax have no small tubercles or, at most, with slightly distinct tubercles, the elytral maculae are distinctly more orangish, the apical spine of the elytra distinctly closer to sutural angle. We did not examine specimens of H. camillus ( Dillon & Dillon, 1949) , but by the photograph of the holotype and original description, it is very similar to H. confusor and H. sallei ( Fig. 34 ), mainly by the color and elytral maculae. The new species also differs from H. camillus and H. sallei by the color of elytral pubescence and position of the spine at elytral apex (closer to sutural angle in H. camillus and absent or almost so in H. sallei ). The elytral pubescence between maculae with dense pubescence is very variable in P. confusor and P. sallei (from distinct to almost absent).

Figures

FIGURES 6 – 10. Hammatoderus migueli sp. nov., holotype male: 6, dorsal view; 7, ventral view; 8, lateral view; 9, tubercle of lateral mesosternal process, lateral view; 10, head, frontal view.

FIGURES 32 – 38. 32, Hammoderus lacordairei, holotype female, dorsal view. 33, Hammoderus inermis, holotype male, dorsal view. 34, Hammoderus sallei, syntype female, dorsal view. 35 – 36, Plagiohammus confusor, holotype male: 35, dorsal view; 36, labels. 37 – 38, Plagiohammus olivescens, holotype male: 37, labels; 38, dorsal view.