Pelidnota pernambucana, Ferreira & Almeida & Bravo, 2017
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publication ID |
https://doi.org/ 10.1016/j.rbe.2017.04.004 |
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persistent identifier |
https://treatment.plazi.org/id/6B7287A3-FFE4-FF96-F64B-F8A4FA79F814 |
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treatment provided by |
Felipe |
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scientific name |
Pelidnota pernambucana |
| status |
sp. nov. |
Pelidnota pernambucana View in CoL sp. nov.
( Figs. 14–16 View Figs )
Diagnosis. Second teeth on the external margin of mandible four times than first; second teeth of inner margin bigger than others
( Fig. 24 View Figs ). First teeth of maxillary galea sawed and IV palpomere elongated ( Fig. 28 View Figs ). Surface area of pre-mentum excavated and lateral margin of post-mentum rounded ( Fig.32 View Figs ). Elytral apex truncated and slightly acute ( Fig. 36 View Figs ). Anteroexternal angle of metacoxa strongly acute ( Fig. 40 View Figs ). Pygidium green with metallic reflections ( Fig. 46 View Figs ).
Holotype male description. Total length 23.3 mm, width 11.2 mm. Body elongated-oval, slightly convex. Color: Head, pronotum, scutellum, and elytron golden-brown. Posterior margin of vertex black. Anterior margin of pronotum dark brown. Medial portion of posterior margin of pronotum, posterior margin of scutellum with metallic green reflections. Pronotum with one and elytra with two lateral black spots. Pygidium dark brown. Ventral surface and legs same color as pygidium. Pygidium, ventral surface and legs with metallic green reflections. Head: Antenna with 10 antennomers; club composed by three antennomeres; scape elongated, shorter than II–VII. Clypeus trapezoidal, punctures dense and large to moderately large; anterior margin concave. Frontoclypeal suture not evident. Frons width at meddle region 2–3 times length of clypeus; punctures moderate to dense and moderately wide. Ocular canthus not reaching the middle of the eye; interocular distance 4 times the transverse eye diameters. Labrum transversal ( Fig. 20 View Figs ) not fused to clypeus, with medial compression,setae on the entire surface; anterior and posterior margin straight. Mandibles extend beyond apical margin of clypeus, outer margin black, with 2 exposed, recurved, outer teeth, and 3 teeth on internal, the first worn and second acute ( Fig. 24 View Figs ); molar robust. Maxilla with galea bearing 6 teeth, first sawed; palp with 4 palpomeres, IV elongated ( Fig. 28 View Figs ). Labium, post-mentum with elongate moderate setae; mentum with apex concave; palp inserted into a lateral cavity in the pre-mentum, with 3 palpomeres, III elongate, equal I–II together ( Fig. 32 View Figs ). Pronotum: Convex. Length 4.8 mm, anterior width 5.9 mm, mean width 10.3 mm, posterior width 10.22 mm. Punctures dense and moderately wide. Anterior margin concave, with anterior angles acute. Posterior margin convex. Lateral margin rounded. Membranous border surrounding pronotal disk. Scutellum: Width 0.3 mm, total length 1.2 mm.Punctures moderate and moderately wide.Posterior margin rounded. Lacking setae. Elytron: Humeral width 11.2 mm, elytral length 16.4 mm. Surface smooth (punctures sparse to moderate, small to moderate, slightly organized longitudinally), lacking setae. Membranous border present at the anterior half. Two dark spots present, one in humerus and other in lateral margin. Apex with punctures sparse and moderately wide. Elytra with suture dark brown and truncated, and slightly acute apex ( Fig. 36 View Figs ). Venter: Punctures dense and moderately wide. Moderately covered by yellow setae. Prosternum with anterior process, but not extending beyond procoxa. Mesoventrite with anterior process between mesocoxae. Mesoventrite lateral area with moderate setae. Legs: Punctures dense. Protibia with dark outer margin and 3 teeth, apical tooth slightly recurved and larger than the other two; apical spur present; dorsal longitudinal ridge present and with a row of 8 brown setae ( Fig. 44 View Figs ). Metacoxa with posterior projection extending beyond base of metatrochanter; anteroexternal angle strongly acute ( Fig. 40 View Figs ). Metafemur flattened medially. Mesotibia with moderate setae on inner surface, spines and sparse spine-like setae on outer surface; apical margin dark, inner margin with two larger spurs interleaved with two small spine-like setae, outer margin with 10 spine-like setae. Metatibia with apical margin dark, inner margin with two larger spines interleaved with two smaller spines, outer margin with one small spine-like setae; four spine-like setae on external longitudinal carinae ( Fig. 56 View Figs ). Tarsomeres with small ventral tooth, most evident on meso- and metatarsomeres V. Tarsomeres 2–4, with two inner spine-like setae on all legs. Tarsal claws simple, inner protarsal claw slightly recurved and larger than outer claw ( Fig. 50 View Figs ). Outer claws of meso- and metatarsus larger than inner claws. Abdomen: Abdominal ventrite convex, punctures moderate to dense, and with moderate setae. Sternite VI ending before posterior margin of pygidium. Margins of abdominal ventrites darker than the rest of the ventrites. Pygidium: ( Fig. 46 View Figs ) convex in lateral view. Surface densely striate and with moderately to dense brown setae. Posterior margin slightly concave. Parameres: ( Figs. 63, 64, 68 View Figs ) symmetrical, fused; apex concave, distal margin slightly rounded laterally; proximal margin straight and truncated.
Type material. Holotype male, BRAZIL, Pernambuco: (“ Bonito, Cachoeira Véu da Noiva ”, “ 510 m ”) (8 ◦ 32 l 32.4 ll S/35 ◦ 42 l 53.9 ll W), 25.III.2015. E.M. Menezes col. ( MZFS#55727 ) ( MZFS) ( Figs. 75–77 View Figs ).
Distribution. Known only from type locality.
Etymology. The specific epithet pernambucana refers to Pernambuco state where the holotype was collected.
Remarks. Pelidnota pernambucana is distinguished as follows ( Pelidnota nordestina characters in brackets): posterior margin of head less black (black dark); mandibles small, not exceeding the lateral margin of the clypeus (exceeding the lateral margin of the clypeus; labrum transversal ( Fig. 20 View Figs ) (triangular ( Fig. 19 View Figs )); inner teeth of mandible larger ( Fig. 24 View Figs ) (small ( Fig. 23 View Figs )); first teeth of maxillary galea sawed, IV palpomere of maxilla, more elongated and insertion area of palp more excavated ( Fig.28 View Figs ) (first and second teeth sawed and IV palpomere less elongated ( Fig.27 View Figs )); surface area of pre-mentum and insertion area of palp more excavated, lateral margin of post-mentum less rounded, and with elongated moderate setae ( Fig.32 View Figs ) (less excavated, more rounded, and with elongate dense setae ( Fig. 31 View Figs )); external teeth of protibia small and slightly curved ( Fig. 44 View Figs ) (larger and sharply curved ( Fig. 43 View Figs )); elytra apex truncated ( Fig. 36 View Figs ) (slightly more acute ( Fig. 35 View Figs )); anteroexternal angle of metacoxa strongly acute ( Fig. 40 View Figs ) (rounded and slightly sharp ( Fig. 39 View Figs )); pygidium dark brown with strong metallic green reflections around pygidium ( Fig. 46 View Figs ) (dark brown with reddish reflections around pygidium, and slight metallic green reflections only on the sides of the posterior margin of pygidium ( Fig. 45 View Figs )); small apical spurs and cuticle projection-shaped spur of metatibia; six spine-like setae on external longitudinal carinae, and six setae on inner longitudinal carinae of metatibia ( Fig. 56 View Figs ) (larger; more than six ( Fig. 55 View Figs ); parameres distal margin slightly rounded, and proximal margin straight and truncated ( Figs. 63, 64, 68 View Figs ) (distal margin V-shaped and gradually acute laterally, and proximal margin gradually semi-quadrate ( Figs. 61, 62, 67 View Figs )).
Comments. The specimen was collected in a tropical forest in an enclave in the Caatinga ecoregion ( Instituto LIFE, 2015).
Identification key. Pelidnota beckeri , P. nordestina and P. pernambucana were included in couplet 48 of the identification key for the uniformly brown and robust; pronotum densely covered by ventral bristles. Bolivia, Argentina, and southern Brazil.. ... ...... 45
- Species of the Atlantic Forest and Caatinga ecoregions, Northeastern Brazil. Body uniformly brown or dark brown with dark spots present or not on pronotum, humeral angle and lateral elytra.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...... 48
48(43) Dorsal surface uniformly brown.. ... ... ... ... ... ... .... A
- Head, pronotum and scutellum dark brown; elytra brown. Distribution: Brazilian Atlantic Forest and deciduous forest (Caatinga), states of Bahia, Espírito Santo, Minas Gerais, Rio de Janeiro .. ... ... ... ... ... ... ... ... ... ... ... .... Pelidnota chalcothorax Perty
A(48) Black spots present on elytra or pronotum.. ... ... ... .... B
- Black spots absent on elytra and pronotum absent ( Figs. 9, 10 View Figs ), legs more or less brown, body darker than head, pronotum, and elytra. Distribution: Argentinian to Pernambuco state ... ... ... ... ... ... ... ... ... ... ... ... ... .... Pelidnota unicolor (Drury)
B(A) Body brown; legs dark brown with metallic green reflections; one black lateral spot on pronotum and two on elytron (one at humerus of elytral and one on lateral half); elytral apex truncated, slightly acute or not.. ... ... ... ... ... ... ... ... ... .... C
- Body dark brown; legs brown, lacking metallic reflections; pronotum without spots; three black spots laterally on elytron (one at humerus and two on lateral half) ( Figs. 1, 3 View Figs ); elytral apex truncated ( Fig. 33 View Figs ); parameres distal margin apex gradually acute laterally ( Figs. 57, 58, 65 View Figs ). Distribution: Brazil, Bahia state ... ... ... ... ... ... ... ... ... ... ... ... ... .... Pelidnota beckeri sp. nov. species of Pelidnota (Soula, 2009) . Key modified and translated from Soula (2009: 30–34).
43(38) Andean species; light brown, fairly large and elongated body (length 19–24 mm, width 12–14 mm).. ... ... ... .... 44
- Sub-Andean species, southernmost; usually smaller individuals (length 15–24 mm, width 9–13 mm) bodies, brown dorsally; legs C(B) Labrum triangular ( Fig. 19 View Figs ); teeth on inner margin of mandible small ( Fig. 23 View Figs )); first and second teeth of maxillary galea sawed and IV palpomere less elongated ( Fig. 27 View Figs ); surface area of pre-mentum and insertion area of palp less excavated, lateral margin of post-mentum more rounded, and with elongated dense setae ( Fig. 31 View Figs )); elytra apex truncated and slightly acute ( Fig. 35 View Figs ); metacoxa with anteroexternal angle rounded and slightly acute ( Fig. 39 View Figs ); protibia with distal external tooth large and strongly recurved ( Fig. 43 View Figs ); pygidium dark brown, with reddish reflections on disk, with slight metallic green reflections on lateral area of posterior margin ( Fig. 45 View Figs ); parameres distal margin acute laterally ( Figs. 61, 62, 67 View Figs ). Distribution: Brazil, Pernambuco state ... ... ... ... ... ... ... ... ... ... ... ... .... Pelidnota nordestina sp. nov.
- Labrum transversal ( Fig. 20 View Figs ); teeth on inner margin of mandible larger ( Fig. 24 View Figs ); only first teeth of maxillary galea sawed, IV palpomere of maxilla, more elongated ( Fig. 28 View Figs ); surface area of pre-mentum and insertion area of palp more excavated, lateral margin of post-mentum less rounded, and with elongate moderate setae ( Fig. 32 View Figs ); elytral apex truncated and slightly acute ( Fig. 36 View Figs ); anteroexternal angle of metacoxa strongly acute ( Fig. 40 View Figs ); distal external tooth of protibia slightly recurved ( Fig. 44 View Figs ); pygidium green and with metallic reflections ( Fig. 46 View Figs ); parameres distal margin rounded and slightly acute laterally ( Figs. 63, 64, 68 View Figs ). Distribution: Brazil, Pernambuco state ... ... ... ... ... ... ... ... ... ... .... Pelidnota pernambucana sp. nov.
52(37) Andean or Sub-Andean species; more or less uniformly green, elytron green and body ochre; punctures of the pronotum small to large.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... 53
- Amazonian or Atlantic Forest species; color distinctly more ochre.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... 58
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