Passalus (Pertinax) gravelyi Moreira, 1922

Jiménez-Ferbans, Larry, Reyes-Castillo, Pedro & Bevilaqua, Marcus, 2022, The Brachypterous Species of Passalus (Pertinax) (Coleoptera: Passalidae), with the Description of a New Species from Sierra Nevada de Santa Marta, Colombia, Neotropical Entomology 51 (5), pp. 722-741 : 726-730

Passalus (Pertinax) gravelyi Moreira, 1922

( Figs. 4 , 5 and 6 )

Type material. Holotype: male. Brazil. [Rio de Janeiro — Itatiaia] // Instituto Biol. nº 43 // Inst. Biolog. Entomologia Agricola Rio de Janeiro // Laboratório de Entomologia Agricola Rio de Janeiro ( MZUSP).

Additional material: Brazil. Rio de Janeiro: Itatiaia, Maromba , 1957 / F. H. Guimarães // Passalus gravelyi / P. Pereira det. [1]957. ( MZUSP) 1 ex. Itatiaya 1800 m. xii. [19]30. W. Zikan leg. // Passalus gravelyi Mor. Lued. det. 1932 // 06,505 ( MZUSP) 1 ex. Itatiaya , 1300 m, ii.1936 / B. Pohl // Passalus (Pertinax) gravelyi Moreira (MZUSP) 1 ex. [unleg.] 1920 Hoffmann // Passalus gravelyi Mor. Luederw. det. [19]28 // 06,506 ( MZUSP) 1 ex. Itatiaya — 1800 m. Km 13. 16.iii.1935 / J. F. Zikán // P. (Pertinax) gravelyi Moreira / J. F. Zikán det. // 05,589 ( MZUSP) 1 ex. Minas Gerais: Sapucaí-Mirim . Cidade Azul — 1400 m. 7.xi.1953 / L. Trav. F. & M. Kuhlmann, C. Gans & S. Medeiros // Passalus gravelyi / P. Pereira det. [1]954 // 20,428, 20,425, 20,427 ( MZUSP) 3 ex. Vila Monte Verde 28.ii.1964. J. Halik / 897 // Passalus gravelyi Moreira / P. Pereira det. [1]964 ( MZUSP) 1 ex. Vila Monte Verde 15.iii.1966 / J. Halik // Passalus gravelyi Mor. / P. Pereira det. [1]966. ( MZUSP) 2 ex. Vila Monte Verde , 21.xi.1966 / J. Halik. 5052 // Passalus (Pertinax) gravelyi Moreira / Reyes-Castillo det. [19]88. ( MZUSP) 1 ex. Vila Monte Verde , 10.xii.1966 / J. Halik 5051 // Passalus gravelyi / P. Pereira det. [1]967 ( MZUSP) 1 ex. Vila Monte Verde , 12.viii.1968 / Halik 7624 // Passalus gravelyi Mor. / P. Pereira [1]968 ( MZUSP) 1 ex. Virgínia. S [ul] Minas Ger [ais] Faz. [enda] Campos — 1500 m. 24.ii.1915. J. F. Zikan // Passalus gravelyi Mor. Luederw. det. [19]28 // 06,503 ( MZUSP) 1 ex. Virginia S.[ul] Minas Ger. [ais] Faz. [enda] Campos — 1500 m. 23.xii.1917 / J. F. Zikán // Passalus gravelyi Mor. / Luederw. det. [19]28 // 06,504. ( MZUSP) 1 ex. D.[elfim] Moreira [unleg.] de Piquête 1300 m. x.1957 // Passalus gravelyi (MZUSP) 1 ex. São Paulo: Campos do Jordão , 1600 m. ii.1958 / K. Lenko. ( MZUSP) 1 ex. Paraná: Faz. [enda] Monte Alegre 858 m — vii.[1]941 / R. Lange leg. ( MZUSP) 1 ex.

Diagnosis: Frons anterior edge straight, with small middle indentation; mediofrontal+ laterofrontal tubercles large, with slightly obtuse apex; inner tubercles large, with acute vertices, smaller than the mediofrontal+ laterofrontal tubercles; canthus ocular wide, eyes reduced; prepisternum thin, pubescent with long setae located mainly in the lateroposterior region; mesosternal scars absent or inconspicuous; humeri with short tuft of setae.

Redescription.

Habitus ( Figs. 4 and 6 ): total length 39–42 mm, brachypterous, body convex.

Head ( Figs. 5 a-b): labrum with anterior border concave. Clypeus hidden below the frons, anterior angles small, positioned below the mediofrontal + laterofrontal tubercles. Frons anterior edge straight, with small middle indentation, without secondary mediofrontal tubercles. Mediofrontal+ laterofrontal tubercles large, conspicuous, projected forward with slightly obtuse apex. Frontal area transverse, wider than long, sloping, with the tegument of the anterior region full of thick punctuations. Inner tubercles large, conspicuous, with acute vertices, smaller than the mediofrontal + laterofrontal tubercles, from which they are separated, located closer to central tubercle. Anterior frontal ridges absent. Posterior frontal ridges strong, low, starting at an obtuse angle at the base of the central tubercle. Cephalic mamelon (sensu Jiménez-Ferbans & Reyes-Castillo 2014) large, conspicuous, and divided by a weak longitudinal groove. Central tubercle conical, flattened, low posteriorly, with only the apex evident, but not free. Lateroposterior tubercles small, inconspicuous. Laterofrontal areas prominent and punctate. Lateropostfrontal areas glabrous and not punctate. Postfrontal groove well-marked, with notch in the middle region. Epicranial sutures well-marked. Epicranial fossae shallow but evident. Anterior head angles well-developed, with obtuse vertices, smaller than mediofrontal + laterofrontal tubercles. Canthus ocular wide, with straight anterior angles or slightly obtuse, reaching halfway to the eye (eyes reduced). Postorbital fossae slightly marked, deep, unpunctuated and with some setae. Hypostomal process broad, glabrous and slightly distant from mentum. Medial basal mentum slightly dilated, with few setigerous punctuations only in the posterior region; with protruded anterior region and notched. Lateral lobes of the mentum rounded outer face and straight inner face, with sparse setae. Mentum with big lateral fossae, shallow and some setae on the outer surface. Antennal club trilamellate, with short, thick, and straight lamellae. Mandibles with incisor lobe with three well-formed teeth at the apex; strong superior inner tooth; dorsal teeth large and tall, directed forward; inconspicuous infrabasal fossae. Maxilla with lacinia bidentate at the apex. Ligula tridentate with medium tooth slightly larger and with the same width as the lateral teeth. Thorax ( Figs. 4 , 5 c-e and 6): pronotum rounded, without punctuations, same wide than elytra. Anterior edge slightly straight. Anterior angles obtuse. Marginal groove narrow, occupying ½ of the anterior margin of the pronotum, containing fine punctuations in the anterior part, practically without punctuations laterally. Lateral fossae large, well-marked, deep, irregular in shape. Prepisternum thin, pubescent with long setae located mainly in the lateroposterior region. Prepimerum densely pubescent with long setae, mainly in the posterior region, which can be visible in dorsal view. Prosternellum rhomboidal, with acute base. Mesosternum smooth and glabrous, with lateral areas tegument opaque. Mesosternal scars absent or inconspicuous. Posterior corner of the mesepisternum and mesepimere glabrous. Anterolateral part of metasternum and lateral fossa glabrous. Metasternal disc short and flat, not punctuated. Metasternal punctuations consisting in a group of thick punctures in the posterior region, not forming a carina that delimits the metasternal disc. Metasternal lateral fossea narrow, not dilated posteriorly, narrower than the mesotibia.

Elytra ( Figs. 4a and 6 ): epipleura glabrous. Humeri with short tuft of setae. Striae narrower than interstriae; marked with shallow and inconspicuous punctuations on the dorsal striae and slightly more defined and deeper on the lateral striae.

Abdomen ( Figs. 4b and 6b ): Last sternite with marginal groove complete and well-marked.

Legs ( Figs. 4 and 6 ): profemur with ventral anterior marginal sulcus marked and complete; posterior ventral edge with tuft of setae close to the apex. Protibiae not dilated. Mesotibiae with two or three small spines on the outer margin. Metatibiae without or with a small spine on the outer surface.

Aedeagus elongated ( Fig. 5f ). Basal piece slightly longer than the parameres, distinctly separated from the parameres, with “v”-shape cleft. Median lobe wider than the basal piece and parameres; in ventral view with two sclerotized plaques, with narrower posterior regions, almost acute. Parameres in ventral view distinctly medially separated, deeply emarginated in the anterior edge; in lateral view, with slightly straight projections not reaching half the length of the median lobe.

Figures

Fig. 4 Passalus (Pertinax) gravelyi type: (a) dorsal habitus; (b) ventral habitus

Fig.5 Passalus (Pertinax) gravelyi: (a) head; (b) mentum; (c) head and pronotum in dorso- lateral view; (d) mesosternum; (e) metasternum; (f) aedeagus

Fig.6 Passalus (Pertinax) gravelyi: (a) dorsal habitus; (b) ventral habitus; (c) lateral habitus