Inca axeli, Sousa & Seidel, 2021

Sousa, Rafael & Seidel, Matthias, 2021, Review of the Inca irroratus species group with description of two new species of Inca LePeletier & Serville, 1828 (Coleoptera, Scarabaeidae, Cetoniinae), European Journal of Taxonomy 748 (1), pp. 15-35 : 21-24

Inca axeli sp. nov.

urn:lsid:zoobank.org:act:C559A3D8-DD5D-4B6B-95A1-62276FAE6A79

Figs 1A–E, P , 2A–D, M , 3A, D, G–N , 4A

Differential diagnosis

Inca axeli sp. nov. is very similar to I. neglectus sp. nov. in that both species have clypeal horns in males with dorsolateral tooth long and acute (short and rounded in I. irroratus ), posterior angles of pronotum acute (rounded in I. irroratus ), medial area of elytra with large waxy maculae (absent in I. irroratus ), and posterior tooth of protibia long and acute (short and rounded in I. irroratus ). Inca axeli sp. nov. has the inner dorsal carina of clypeal horns abruptly interrupted at apex (gradually interrupted in I. neglectus sp. nov. and I. irroratus ) and the outer distal process of parameres long and acuminate (long and rounded in I. neglectus sp. nov. and short and rounded in I. irroratus ) (see Table 2 ).

Etymology

It is a pleasure for the last author to name the species after Axel González Gallardo in gratitude for the last years together and all his support.

Material examined

Holotype BRASIL – Santa Catarina • ♂; SC, Joinville; Dirings coll.; “HOLOTYPE, Inca axeli, Sousa & Seidel, 2019 ”; MZSP 22036 .

Paratypes (13 ♂♂ and 25 ♀♀) BRAZIL – No detailed localities • 1 ♂, 1 ♀; “Brasilien, Jäger coll., I. Burmeisteri , Brasil, Beske”; SMNS • 1 ♀; same collection data as for preceding; ZMH 833672 • 1 ♂; “ Brasil , Inca pulverulentus, Le Moult vend via Reinbek, Eing. Nr. 1, 1957”; ZMH 833671 . – Amazonas • 1 ♀; “AM; Benjamin Constant; Rio Javary ”; Dec. 1961; Dirings coll.; MZSP 22053 . – São Paulo • 1 ♀; “ Eugênio Lefreve , Pindamonhangaba, S.P.”; Mar. 1963; “EXp. Dep. Zoologia, INCA IRRORATUS, CHEVR. , det. B.C. Ratcliffe 1983”; MZSP 22020 • 1 ♂; Est. Bio. Boraceia [Estação Biológica da Boracéia], Salesópolis ; 1–4 Feb. 1973; Vanin coll.; “ INCA SP NOV., proche de irroratus [handwritten]; det. P. Bleuzen 1992”; MZSP 22007 • 1 ♀; São Paulo, (capital); Dirings coll.; Jan. 1960; MZSP 22054 • 1 ♀; S. Bocaína, Parq. criac. Trutas [parque de criação de trutas]; 1800 m a.s.l.; Mar. 1954; “Dalcy, R. Barros; Coll. IRSNB, ex coll. J. ROUCH, I.G.: 32.703”; RBINS. – Paraná • 1 ♂, 1 ♀; Piraquara, Manaciais da Serra ; 3 Mar. 2012; CEMT • 1 ♂; Santo Antonio ; 20 Mar. 1993; “Coll. P. BLEUZEN, Coll. IRSNB, eX coll. J. ROUCH, I.G.: 32.703, Photo N. Mal 2015”; RBINS. – Santa Catarina • 1 ♀; Joinville ; Dirings coll.; MZSP 22051 • 1 ♂; Timbó ; MZSP 22004 • 1 ♂; Timbó ; Jun. 1969; Dirings coll.; MZSP 22035 • 1 ♂; Timbó ; May 1956; Dirings coll.; MZSP 22038 • 1 ♀; Timbó ; Feb. 1960; Dirings coll.; MZSP 22018 • 1 ♀; Timbó ; Mar. 1960; Dirings coll.; MZSP 22019 • 7 ♀♀; Timbó ; Mar. 1960; Dirings coll.; MZSP 22041–22047 • 3 ♀♀; Timbó ; Jun. 1969; Dirings coll.; MZSP 22048–22050 • 1 ♀, 1 ♂; Rio Vermelho ; Mar. 1949; Dirings coll.; MZSP 22039–22040 • 1 ♀; Rio Vermelho ; Nov. 1963; Dirings coll.; MZSP 22052 • 1 ♂; CORUPA; Feb. 1952; “ Anton Maller; coleção CAMPOS SEABRA; Coll . IRSNB, eX coll. J. ROUCH, I.G.: 32.703”; RBINS • 1 ♀; CORUPA; “II”; “Anton Maller; coleção CAMPOS SEABRA; Coll. IRSNB, eX coll. J. ROUCH, I.G.: 32.703”; RBINS • 1 ♂; Campo Alegre ; 23 Feb. 1997; “Coll. IRSNB, eX coll. J. ROUCH, I.G.: 32.703”; RBINS • 1 ♀; Jaragua do Sul ; Feb. 1991; “Coll. Th. PORION; Coll. IRSNB, eX coll. J. ROUCH, I.G.: 32.703, Photo N. Mal 2015”; RBINS • 1 ♂; Hansa Humbolt ; Mar. 1929; “ A. Maller; L. Burgeon, coll.et det., R.I.Sc. N.B.16.117”; RBINS • 1 ♂; “ Brésil, Sta Catarina ”, “ J.P.MARECHAL ; Coll. IRSNB, eX coll. J. ROUCH, I.G.: 32.703”; Coll. Matthias Seidel 2019; MSPC • 1 ♀; Campo Alegre ; 23 Feb. 1997; “Coll. IRSNB, eX coll. J. ROUCH, I.G.: 32.703”; Coll. Matthias Seidel 2019; MSPC .

Paratypes deposited in CEMT, MZSP and UFRPE are labelled with “ PARATYPE; Inca axeli ; Sousa & Seidel, 2019” and paratypes deposited in MSPC, RBINS, SMNS and ZMH are labelled with “ PARATYPE; Inca axeli sp. nov., M. Seidel & R. Sousa, 2019”.

Description

Holotype (male)

BODY ( Fig. 1A–C ). Total length including clypeal horns 40 mm; width across humeri 17 mm.

COLOUR. Reddish brown with dark green heterogeneous spots, dorsal surface with green metallic reflections; legs and meso- and metathoraX bright reddish brown ( Fig. 1A–C, P ).

HEAD. Surface of frons with dark green and dark reddish-brown waxy secretion; clypeal horns with anterior area of inner dorsal carina truncate, abruptly interrupted and not reaching distal angles; dorsolateral tooth long and acute ( Fig. 1P ).

THORAX. Lateral margin of pronotum strongly sinuous; lateromedial area with elongated and irregular fovea; longitudinal groove shallow; posterior angles acute ( Fig. 1A–C ). Anterior prosternal process acute, projected and densely setose in median area. Anterolateral area of scutellar shield punctate. Elytra with yellowish grey heterogeneous waxy maculae covering all surface and two large maculae in medial area ( Fig. 1A ).

LEGS. Posterior tooth of protibia long and acute ( Fig. 3A ). Mesempodium with 2 setae.

ABDOMEN. Fovea of sternite VII strongly marked. Disc of pygidium densely punctate, lateral area with well-defined punctures.

TERMINALIA. Aedeagus: outer distal process of parameres long and acuminate ( Fig. 1D–E ).

MORPHOLOGICAL VARIATIONS (males). Body length 30−45 mm, width 13−17 mm. Head: clypeal horns with or without green metallic reflection; brachycerous males with clypeal horns with dorsolateral tooth small and inner dorsal carina abruptly or gradually interrupted at apex. Thorax with anterior prosternal process rounded and small. Density of waxy maculae of elytra variable, maculae yellowish grey or golden yellow; the two large maculae in median area variable in shape and size.

LEGS. Mesempodium with 2−4 setae.

Female

BODY ( Fig. 2A–C ). Length 32–42 mm; width across humeri 15–18 mm. Maculae of medial area of elytra usually larger than in males.

Type locality

Joinville, Santa Catarina State, Brazil.

Distribution

Brazil: São Paulo (Pindamonhangaba, Salesópolis, São Paulo) Paraná (Piraquara), Santa Catarina (Campo Alegre, Joinville, Corupá, Jaraguá do Sul, Timbó, Florianópolis, Bocaina do Sul) ( Fig. 5 ). The female paratype from Benjamin Constant (Amazonas) is probably labelled incorrectly.

Biology

Two larvae of I. axeli sp. nov. were collected inside the base of a dead bromeliad (possibly Vriesea sp. or Aechmea sp. ) in a fallen tree at Mananciais da Serra, Piraquara, Paraná State, Brazil (pers. com. Paschoal Grossi).

Figures

Fig. 1. Males of Inca spp. A–E, P. Inca axeli sp. nov., holotype (MZSP 22036). – F–J, Q. Inca neglectus sp. nov., paratype (MZSP). – K–O, R. Inca irroratus Chevrolat, 1833, neotype (BMNH). A, F, K. Dorsal habitus. B, G, L. Ventral habitus. C, H, M. Lateral habitus. D, I, N. Dorsal view of aedeagus. E, J, O. Lateral view of aedeagus. P–R. Dorsal view of head. Scale bars = 5 mm.

Fig. 2. Females of Inca spp. and type labels. A–D, M. Inca axeli sp. nov. – E–H, N. Inca neglectus sp. nov. –I–L, O. Inca irroratus Chevrolat, 1833. A, E, I. Dorsal habitus. B, F, J. Ventral habitus. C, G, K. Lateral habitus. D, H, L. Type labels. M–O. Frontal view of head. Scale bars = 5 mm.

Fig. 3. Morphological details of Inca spp. A, D, G–N. I. axeli sp. nov. (A, D: ♀, G–N ♂). – B, E. I. neglectus sp. nov. – C, F. I. irroratus Chevrolat, 1833. A–C. Protibia, lateral view. D–F. Details of elytral epipleuron. G–N. Mouthparts. G–I. Right mandibles (dorsal, inner and ventral view). J–K. Labrum (dorsal and frontal view). L. Right maxilla (dorsal view). M. Epipharynx. N. Labium.

Fig. 4. Images of liveInca spp.A. Inca axelisp. nov. (photo by R. Barros and R. Koike).B. Inca neglectus sp. nov. (photo by N. Marchito). C. Inca clathratus sommeri Westwood, 1844 (photo by A. González Gallina). D. Inca clathratus clathratus (Olivier, 1792) (photo by R. Barros and R. Koike). E. Inca clathratus quesneli Boos & Ratcliffe, 1985 (photo by M. Hulme). F. Inca pulverulentus (Olivier, 1789) mating (photo by R. Barros and R. Koike). G. Inca bonplandi (Gyllenhal, 1817) (photo by J. Touroult). H. Inca besckii Burmeister & Schaum, 1840 feeding on tree sap (photo by N. Wisnik).

Fig. 5. Distribution map of species of the Inca irroratus group.