Pachyrhynchus similis, Bollino, 2022

Bollino, Maurizio, 2022, Three new species of Pachyrhynchus Germar 1824, (Coleoptera, Curculionidae Entiminae) from Mindanao Island, The Philippines, with taxonomical notes, Zootaxa 5116 (4), pp. 504-516 : 505-508

Pachyrhynchus similis sp. nov.

( Figs. 1A–1D )

Type material. Holotype, male ( Figs. 1A–1B ): Philippines — Mindanao / Near Wao / (Lanao del Sur) / VII.2017, coll. Bollino (typed on white card) // HOLOTYPE / Pachyrhynchus similis / BOLLINO, 2022 (typed on red card), presently in MBLI, will be deposited in SMTD .

Paratypes (40♂♂, 25♀♀): 1♂, 8♀♀, same data as the holotype ; 1♀, Philippines — Mindanao / Near Wao / (Lanao del Sur) / IX–XII.2017, coll. Bollino ; 19♂♂, 4♀♀, Philippines — Mindanao / Near Wao / (Lanao del Sur) / May – July. 2018, coll. Bollino ; 2♂♂, 2♀♀, Philippines — Mindanao / Alamada—Dado Vill. / (North Cotabato) / December 2018 — January 2019 / Lgt. Local people—coll. Bollino ; 2♂♂, 3♀♀, Philippines — Mindanao / Mt. Kitanglad—DomorogVill. / (Bukidnon) / October–December 2018 / Lgt. Local people—coll. Bollino ; 1♂, Philippines— Mindanao / Near Wao / (Lanao del Sur) / VII 2019, coll. Bollino ; 1♂, 1♀, Philippines — Mindanao / Alamada— Dado Vill. / (North Cotabato) / September 2019 / Lgt. Local people—coll. Bollino ; 1♂, 1♀, Philippines —Mindanao / Wao (Lanao del Sur) / XI.2019 – III.2020 / coll. Bollino , all in MBLI; 2 ♂♂, Philippines / Mindanao, Lanao, Wao / June 2017 / local collectors leg. // ex Prof.A. Barsevski coll. ; 2♂♂, Philippines / Mindanao, Lanao, Wao / VIII 2018 / local collectors leg .; 1♂, Philippines / Mindanao, Lanao, Wao / XI 2018 / local collectors leg .; 1♂, Philippines/ Mindanao, Cotabato, Alamada / II 2019 / local collectors leg., all in DUBC ; 1♀, Philipphines-Mindanao Isl. / Lanao del Sur Pr. / Wao : 09.2018 / Ex Ismael Lumawig / Coll. Franco Sandel ; 2♂♂, 1♀, Philipphines-Mindanao Isl. / Lanao del Sur Pr. / Wao: 10.2018 / Ex Ismael Lumawig / Coll. Franco Sandel ; 2 ♂♂, Philipphines-Mindanao Isl. / Lanao del Sur Pr. / Wao : 12.2018 / Ex Ismael Lumawig / Coll. Franco Sandel ; 1♀, Philipphines-Mindanao Isl. / Lanao del Sur Pr. / Wao : 01.2019 / Ex Ismael Lumawig / Coll. Franco Sandel ; 1♂, Philipphines-Mindanao Isl. / Lanao del Sur Pr. / Alamanda : 10.2018 / Ex Ismael Lumawig / Coll. Franco Sandel ; 1♂, 1♀, Philipphines-Mindanao Isl. / Lanao del Sur Pr. / Kapatagan: 09.2018 / Ex Ismael Lumawig / Coll. Franco Sandel ; 1♀, Philipphines –Mindanao Isl. / Bukidnon Pr. / Mt. Kalatungan , Dominorog: 12.2018 / Ex Ismael Lumawig / Coll. Franco Sandel ; 1♂, Philipphines – Mindanao Isl. / Bukidnon Pr. / Kabanglasan: 09.2018 / Ex Ismael Lumawig / Coll. Franco Sandel , all in CFS. To all paratypes was added the additional label: “ PARATYPE / Pachyrhynchus similis / BOLLINO, 2022” (typed on red card) .

Diagnosis. Pachyrhynchus similis belongs to the atrocyaneus species group (see taxonomic notes below), and differs from all other species of the group by its elytral ornamentation: light green to yellowish green subbasal spot on third interval, antimedian transverse band on entire width and long broad stripe extending from behind middle to just before apex of third interval, all atop a dark glowing red integument,

Description. Male. Dimensions: LB: 9.2–10.5 (holotype 10.5); LR: 1.5–1.8 (1.8); WR: 1.3–1.7 (1.6); LP: 2.8–3.3 (3.3); WP: 3.0–3.4 (3.4); LE: 6.1–6.7 (6.7); WE: 4.6–5.0 (5.0). N = 6 for all measurements.

Color pattern. Integument dark glowing red. Body surface mostly strongly shiny, except underside with weaker luster. Body mostly subglabrous, with yellowish green to light green glossy markings of round to elliptic recumbent scales. Head subglabrous, with a small median yellowish green scaly patch at base of rostrum.Rostrum with lateral parts covered with pale yellowish hairs under antennal scrobes; a patch of yellowish green scales behind antennal scrobes and extended to gena. Prothorax with the following four yellowish green scaly markings: 1) triangular patch of round scales in middle near base, 2) small dorsolateral spot of round to elliptic scales on each side, 3) lateral patches along basal margin, and 4) anterior margin and lateral basal margin with round scales, both merged with lateral patches. Each elytron with the following ten scaly markings of light green to yellowish green round scales: 1) subbasal spot on third interval; 2) subbasal spot on fifth interval; 3) antimedian transverse band on entire width; 4) long broad stripe extending from behind middle to just before apex of third interval; 5) small dot on interval 1 at middle of apical declivity; 6) subapical dot on fourth interval; 7–9) postmedian patches on intervals 5–7, and 10) long stripe extending from the base to apex along outer margin, conjoined with antimedian transverse band. Markings # 4–9 conjoined. Femora subglabrous. Tibiae fringed with sparse hairs along internal margins. Prosternum with intercoxal subtriangular patch of yellowish green scales; mesosternum and metasternum nearly totally covered by round yellowish green scales. Ventrite 1 with small sublateral scaly patch.

Head sparsely and minutely punctured. Front flattish, nearly three times as wide as eye width; eyes relatively large, prominent from outline of head; outline of each eye highest behind middle.

Rostrum longer than wide (LR/WR 1.125); dorsum moderately finely punctured, with obtriangular concavity on basal half, which extends almost to front; transverse furrow with rounded bottom at the apicalmost portion of the dorsal concavity; weakly bulging on apical half; apical bulge dorsally flattish.

Antennae with scape slender, nearly as long as funicle, moderately clavate; funicular segments all of same width, but segments 1 and 2 twice as long as wide, segments 3 to 7 subequal in length, nearly as long as wide; club subovoid, nearly twice as long as wide.

Pronotum spherical, slightly wider than long (WP/LP 1.05); dorsum smooth, weakly convex; dorsal contour highest at middle; sides gently dilated from moderately constricted base, widest at middle, then gently convergent apicad; basal and apical margins subtruncate; subbasal and subapical grooves entirely distinct.

Elytra ovoid (LE/WE 1.5), wider than pronotum (WE/WP 1.45), about twice longer than pronotum (LE/LP 2.03), weakly striate-punctured, with intervals evenly flattish; dorsum moderately convex; dorsal contour highest at middle; sides weakly and gradually dilated from base, widest slightly before middle, then gently narrowed to weak subapical constrictions, and gently rounded at apices; apical fifth of interval 9 with apical callus.

Metasternum flat on disc. Ventrite 1 widely depressed on disc; apex of discal depression reaching apical margin of ventrite 1. Ventrite 5 widely truncate at apex.

Legs slender; femora clavate; meta and hind tibiae weakly incurved apically, sharply minutely serrate along internal margins, mucronate at apices; tibial mucrones vestigial on hind legs.

Genitalia as illustrated ( Figs. 2G–2I , 5G ).

Female. Dimensions: LB: 10.8–12.0; LR: 1.4–1.7; WR: 1.6–1.7; LP: 3.0–3.2; WP: 3.1–3.4; LE: 7.6–8.4;WE: 5.5–6.1. N = 5 for all measurements. Elytra much wider than prothorax (WE/WP 1.77–1.80), with stronger subapical constrictions, elongate apically, and interval 9 of elytra with a well marked apical callus. Ventrite 1 flattish or slightly inflated on disc. Otherwise, essentially as in males.

Distribution. The new species is distributed in north eastern North Cotabato, south eastern Lanao del Sur and Bukidnon, west of Mount Kitanglad.

Etymology. The Latin name “similis” means similar, in reference to its strong resemblance to Pachyrhynchus naokii Yoshitake, 2012 .

Figures

FIGURE 1. Pachyrhynchus similis sp. nov. Holotype. A: dorsal view; B: idem, lateral view; Pachyrhynchus similis sp. nov. female. C: dorsal view; D: idem, lateral view.

FIGURE 2. Male genitalia of Pachyrhynchus atrocyaneus HT A: penis in lateral view; B: idem in dorsal view; C: sternite IX in dorsal view. Male genitalia of Pachyrhynchus basilanus D: penis in lateral view; E: idem in dorsal view; F: sternite IX in dorsal view. Pachyrhynchus similis sp. nov.G: penis in lateral view; H: idem in dorsal view; I: sternite IX in dorsal view. Male genitalia of Pachyrhynchus subanon sp. nov.L: penis in lateral view; M: idem in dorsal view; N: sternite IX in dorsal view. Pachyrhynchus chrysomaculatus sp. nov.O: penis in lateral view; P: idem in dorsal view; Q: sternite IX in dorsal view.

FIGURE 5. Endophallus in lateral view. A: Pachyrhynchus basilanus; B: Pachyrhynchus hirokii; C: Pachyrhynchus naokii; D: Pachyrhynchus sphaenomorphoides; E: Pachyrhynchus sergejevae; F: Pachyrhynchus torresi; G: Pachyrhynchus similis; H: Pachyrhynchus subanon.