Agrilus (Agrilus) rossoi, Curletti & Ruzzier & Migliore, 2024

Agrilus (Agrilus) rossoi n. sp.

( Figs. 8-11 View Figures 8-11 )

Material examined. Holotype male: Brazil, Bahia, 26.XI.2023, crossroad BA144/BA429, 11°46’55”S 41°10’04”W. Green sticky traps placed on spineless Fabaceae tree. Curletti G., Migliore L., Migliore S., Rosso F., legg. ( MZSP). GoogleMaps

Holotype description. Length 5.0 mm. Almost glabrous, bright golden-bronze head and pronotum, pitch black elytra. Vertex 1/3 as wide as the anterior margin of the pronotum, furrowed. Frons dark green, glabrous, depressed. Epistome without transverse carina. Closed antennal pores. Antennae dark, short, slightly lobed, serrate from the fourth antennomere. Pronotum gibbous, wider anteriorly, flattened in the median area, strongly depressed laterally. Anterior margin advanced between the eyes. Lateral margins straight posteriorly. Prehumeral carinulae short and not very evident, parallel to the external edge. Marginal carinae joined posteriorly. Disc with strong, raised, transversal sculpture. Vestigial white setae not very evident in the lateral-anterior part. Narrow gular sclerite, with sinuated anterior margin. Prosternal process broad, flat, strongly pubescent, cuneiform with absent angles. Scutellum wider than long, with strong transverse carina. Narrow elytra, revealing a large part of the lateroterga which are regularly pubescent. Apices separately rounded and denticulate. Ventral side regularly and slightly pubescent, with shorter and less thick hairs than those present on the lateroterga and metepisterna. Apex of apical ventrite slightly sinuated. Legs with metatibia longer than metatarsus. Basal metarsomere just less long than the sum of the following two. Anterior claws bifid, median and posterior simply dentate. Aedeagus 1.3 mm long, flattened, sclerotized, symmetrical, with sharp median lobe apex ( Fig. 11 View Figures 8-11 ).

Etymology. The species is named after a member of the mission, Federico Rosso.

Comments and comparative notes. Also, Agrilus rossoi n. sp. was found on a green sticky trap settled on a non-spinous Fabaceae tree, together with one specimen of Agrilus fasciatellus Thomson, 1879 .

Referring to Curletti & Brȗlé (2011), Agrilus rossoi n. sp. is placed in group 03, characterized by dichroism with a red/bronzed pronotum in contrast with the black elytra. In particular, among the numerous Nearctic species that characterize the new species, it is morphologically similar to Agrilus versicolor Chevrolat, 1837 from which it differs in the more elongated shape, in the narrower and less sinuous vertex, in the color of the pronotum golden bronze instead of red and in the peculiar conformation of the prosternal process.