Entimus serpafilhoi Morrone, Abadie and Godinho Jr., 2019

Morrone, Juan J., Abadie, Esteban I. & Jr, Celso Godinho, 2019, A new species of Entimus Germar (Coleoptera: Curculionidae: Entiminae) from southeastern Brazil, Zootaxa 4590 (1), pp. 191-195 : 192-194

Entimus serpafilhoi Morrone, Abadie and Godinho Jr. , spec. nov.

( Figures 1–4 )

http://zoobank.org/ urn:lsid:zoobank.org:act:26B7C095-3BD1-4B6B-8844-D3CE18ADFE9E

Diagnosis. General shape of Entimus (large, elytra subtriangular, strongly convex, attenuate, with humeri angulate and projecting); integument completely black; prothorax and elytra sparsely clothed by whitish, non-overlapping seta-like scales; postocular lobes rounded; and elytral setae scarce.

Description. Holotype male ( Figs. 1, 2 ). Length (prothorax + elytra) 18 mm. Integument completely black; sparsely clothed by small, whitish seta-like scales and setae. Prothorax and elytra with granules: those of pronotum irregular and those of elytra rounded and regularly aligned on interstriae. Head (including rostrum) about 0.57 times as long as prothorax; frontal groove shallow. Prothorax as long as wide; pronotum with irregular median depression; sides rounded, greatest width near anterior third; sides and disc with irregular granules, some coalescent; postocular lobes rounded. Elytra 1.74 times longer than pronotum, 1.62 times as long as wide; sparse seta-like scales only on punctures. Median lobe ( Figs. 3, 4 ) about 0.4 times as long as median struts, aedeagal apex strongly acute. Female not dissected (female genitalia have not been analyzed in this genus).

Variation: Length of specimens of both sexes varies from 18 to 20 mm.

Etymology. Dedicated to the eminent Brazilian entomologist Arlindo Serpa Filho, from the Instituto Nacional de Pesquisas da Amazônia (INPA), currently researcher at the Instituto Nacional da Mata Atlântica, Espirito Santo, Brazil.

Material examined. Holotype male: Brazil, Rio de Janeiro, Arraial do Cabo , December 2016, Celso Godinho Jr. col. ( MZUEL) . Paratypes: 54 males and females with the same data as holotype (46 CGC, 3 EIA, 2 MZFC, 3 MZUEL) .

Type locality. BRAZIL, Rio de Janeiro, Arraial do Cabo , 70 m a.s.l., 22° 57' 29'' S, 42° 00' 53'' W .

Geographic distribution: Entimus serpafilhoi is known from southeastern Brazil (Rio de Janeiro).

Natural history. Entimus serpafilhoi is distributed in the Atlantic biogeographic province ( Morrone, 2014). The habitat of this species is the ‘restinga’ forest, a low forest with abundant cacti, that is situated in low hills near the coast. Until now it is the only species of Entimus distributed in the ‘restinga’, the other species common in the state of Rio de Janeiro, like Entimus imperialis , are found in the Atlantic forest that develops far from the coast.

Remarks. Entimus serpafilhoi has the general shape of other species of the genus, but it is easily distinguished from most other species, which have green, blue, and gold iridescent scales by its black colour and the lack of such scales. It superficially resembles E. arrogans , because of the lack of such scales; however, analysis of relationships shows it to be phylogenetically related to E. excelsus and E. nobilis , based on the elytral scales contiguous to slightly overlapping and the aedeagal apex strongly acute.

The first couplet of Morrone 's (2002) identification key can be modified as follows:

1. Body vestiture of green, blue, and gold iridescent, elongate to ovate scales........................................ 2 1'. Body vestiture of whitish, seta-like scales................................................................. A A. Frontal groove widened; scutellum protruding; elytral humeri rounded; elytral scales imbricate and setae abundant; Colombia,

Costa Rica, Nicaragua, and Panama.............................................................. E. arrogans A'. Frontal groove shallow; scutellum flat; elytral humeri angulate and projecting; elytral scales not overlapping and setae scarce;

southeastern Brazil........................................................................... E. serpafilhoi

Figures

FIGURES 1, 2. Entimus serpafilhoi, male habitus. 1, Dorsal view; 2, lateral view.

FIGURES 3, 4. Entimus serpafilhoi, aedeagus. 3, Dorsal view; 4, lateral view.