Corresponding author: M. Guadalupe del Río (
Academic editor: M. Alonso-Zarazaga
The main objective of this contribution is to redescribe
Specimens of
American Museum of Natural History, New York, USA. Lee Herman.
Natural History Museum, British Museum of Natural History. Chrystopher Lyal.
Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, PR, Brazil. Germano Rosado-Neto.
Museum of Comparative Zoology, Harvard University, Cambridge, USA. Brian Farrell.
Muséum National d’ Histoire Naturelle, Paris, France. Hélène Perrin.
Museo Nacional de Rio de Janeiro, RJ, Brazil. Miguel Monné.
Museu de Zoologia da Universidade de São Paulo, SP, Brazil. Sergio Vanin.
Naturhistoriska Riksmuseet, Stockholm, Sweden. Bert Vicklund.
National Museum of Natural History, Smithsonian Institution, Washington D.C., USA. Steven Lingafelter.
Dissections were made according to standard entomological techniques. Photographs and drawings were done with a digital camera (Micrometrics 391CU, 3.2 m) and a camera lucida attached to a stereoscopic microscope Nikon SMZ1000. Measurements were taken with an ocular micrometer. Measurements, with their abbreviations are as follows: LB, total body length, measured along midline, from apex of rostrum to apex of elytra; LS, standard body length, measured along midline, from anterior margin of pronotum to elytral apex. LA, maximum length of antenna; LC, maximum length of club; WC, maximum width of club; LR, length of rostrum; WF, width of forehead between anterior margin of eyes; WR, width of rostrum measured across apex (excluding scrobes); LP, maximum length of pronotum; WP, maximum width of pronotum; LE, maximum length of elytra; WE, maximum width of elytra.
Species medium-sized (LB: 10-16 mm long; LS: 8.4-13.0 mm long); body elongate, slender; integument densely covered with dull whitish, cream, or tan vestiture, composed of overlapping scales and scattered seta-like scales or setae (
Photographs of
Species medium-sized to large (LB: female 12.7–16.0 mm long, male 10.6–13.5 mm long; LS: female 10.1–13.0 mm, male 8.4–9.8 mm).
Antennae and ventrites of
Female terminalia of
Male genitalia, aedeagi.
Males slenderer and smaller than females; antennae slightly longer; pronotum less transversal and longer in relation to elytral disc (LE/LP: 2.13–3.05 in males; LE/LP: 2.90–3.27 in females); elytra more elongate (LE/WE: 1.62–1.79 in males; LE/WE: 1.54–1.57 in females), with tubercles slightly smaller than in females.
LB: female (
Brazil, states of São Paulo, Rio de Janeiro and Espirito Santo.
Variation in
The new species
LB: female (
The name of the new species is an adjective that refers to the six tubercles present on the elytral disc, a distinct character that allows differentiation from the remaining species of
Brazil, states of São Paulo and Rio de Janeiro.
LB: female (
Brazil, state of Espirito Santo.
The characters of
The Brazilian species of
1 | Elytral disc with one pair of large conical tubercles, slightly directed backwards, on posterior two thirds of interval 5, near declivity. Scutellar shield suboval. Protibiae without mucro and denticles. Ovipositor with coarse setae along external sides of apical 2/3 of baculi | |
– | Elytral disc with more than one pair of tubercles. Scutellar shield subtriangular. Protibiae with mucro and denticles. Ovipositor without coarse setae along sides of baculi | 2 |
2 | Elytral disc with three pairs of tubercles, two on interval 3 and one on interval 5. The largest pair of tubercles slightly directed backwards, placed on posterior 2/3 of interval 3, and followed by a small one; tubercle on interval 5, large but rounded and placed near declivity. Penis flattened towards apex in lateral view | |
– | Elytral disc with three series of conical tubercles along intervals 3, 5 and 7, from base to apex, with largest tubercles placed near declivity of interval 3. Penis not flattened towards apex in lateral view |
In a preliminary cladogram of the
Another Brazilian
In the same area of the elytra where
The presence of tubercles on the elytral disc is a distinct feature of other Neotropical
1 | External surface of the prementum with long easily visible setae; metatibiae withdorsal comb longer than apical comb |
|
– | External surface of the prementum without visible setae; metatibiae withdorsal comb shorter than apical comb | 2 |
2 | Rostrum wider than long (LR/WR: 0.73–0.83). Epistome very narrow, well defined by a denuded line. Antennae with scape not exceeding half of eye. Elytra very short (L/W: 1.30–1.55) with tuft of dark erect setae-like scales on intervals 1 and 3 near declivity |
|
– | Rostrum as wide as long, to longer than wide (L/W: 1.00–1.21). Epistome broad, not well defined. Antennae with scape exceeding posterior margin of eyes. Elytra elongate (L/W: 1.55–1.80) with different number of tubercles on intervals 5, or 3 and 5, or 3, 5 and 7, near declivity or along the intervals |
|
We wish to express our appreciation to all the specialists and curators that loaned us specimens for study, and/or facilitate the examination of material, to Dr. Hélène Perrin and Antoine Mantilleri for sending us pictures of the type material deposited at MNHN, to the reviewers that help to improve the manuscript, to Dr. David Furth (USNM) for checking the English language, and to the “Consejo Nacional de Investigaciones Científicas y Técnicas” (CONICET) of Argentina (PIP 1272) and the “Agencia Nacional de Promoción Científica y Tecnológica”, for its continuous financial support.