Sinopse do gênero Xylergates (Cerambycidae, Lamiinae, Acanthocinini)

Abstract

ABSTRACT. Synopsis of the genus

A new species of Neobaryssinus Monné & Martins, and two new species of Baryssiniella new genus (Coleoptera: Cerambycidae), reared from trees in the Brazil nut family (Lecythidaceae)

“…The acanthocinine genera most consistently associated with the Brazil nut family share a suite of sexual dimorphisms including males with erect ventral pubescence, enlarged profemora, and dilated protarsi (Martins & Monné 1972, Monné & Martins 1976, Monné 1977, Giorgi & Corbett 2005. Although these might suggest a close relationship, it will be impossible to evaluate without phylogenetic analysis; a daunting notion in this large tribe of cryptic, poorly known beetles.…”

“…Palame, Neopalame Martins & Monné, and Xylergates also lack central basal cristae and lateral elytral carinae. Baryssiniella lacks the gibbose pronotum and tuberculate elytra of Xylergates (Giorgi & Corbett 2005), and differs from Palame and Neopalame in having shallower genae (less than half the depth of the lower lobe of the eye) and more pronounced lateral pronotal tubercles. In addition, males of Palame and Neopalame often have a hook at the apex of antennomere 5 or 6 (Martins & Monné 1972), while males of Baryssiniella lack protuberances on any antennomere.…”

New species and new record in Lamiinae from Espírito Santo (Brazil) (Coleoptera: Cerambycidae)

“…Remarks: By the general appearance, especially the pattern of the elytral pubescence, Xylergates quinquetuberculatus is similar to X. capixaba Giorgi & Corbett, 2005, but differs as follows: antennomere IV biannulate; pronotum with five tubercles; white pubescent band on center of the elytra narrower and with sides regular; oblique dark band on elytra beyond middle projected upward from sides toward suture; white pubescent band on posterior quarter of the elytra narrow and projected upward from sides to suture. In X. capixaba (see photographs on Bezark, 2020), antennomere IV not biannulate, pronotum with three tubercles, white pubescent band on center of the elytra is distinctly wider and with sides irregular, oblique dark band on elytra beyond middle is projected downward from sides toward suture, white pubescent band on posterior quarter of the elytra wide and projected downward from sides to suture.…”

“…Xylergates quinquetuberculatus can be included in the alternative of couplet "3" from Giorgi & Corbett (2005) (translated, modified):…”