Oncid ID: Tool for Diagnosing Adult Twig Girdlers (Cerambycidae: Lamiinae: Onciderini)
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Genus: Cherentes

Diagnostic Features
  • Description: Elongate-oblong, robust, small to moderate-sized, ranging from about 9–12 mm in length. Integument generally ferrugineous with whitish, ferrugineous, and ochraceous pubescence. Head with frons subquadrate to transverse, wider than width of five lower eye lobes; entire surface of head finely punctate, each puncture bearing a fine scale in its center. Eyes with lower lobes small and narrow. Genae elongate, distinctly taller than lower eye lobes. Antennal tubercles prominent, widely separated; tubercles unarmed or armed at apex with small projection (males); antennae about as long as overall body length or distinctly longer, about 1 1/3 times as long; scape gradually expanded to apex or clavate; antennomere III slightly curved or slightly elliptical (some males), longer than scape and about as long or longer than antennomere IV; antennomere XI shorter than X (females) or longer than X (males). Pronotum subquadrate, roughly cylindrical to slightly conical, slightly narrower at base, with or without small, lateral, blunt tubercles. Prothorax with sides obliquely and broadly chalky-white. Elytra with sides distinctly expanding to apical 1/3; elytral apices individually rounded; elytra with distinct vittae; lateral margins of elytra with chalky-white maculae; base of elytra without prominent tubercles. Basal 1/3 of elytra sparse punctation, surface finely punctate. Procoxae without projection. Mesosternal process with apex nearly rectangular. Metafemora short to distinctly short in length, about 1/4–1/5 as long as elytra.

  • The combination of the following characters will help to distinguish this genus: distinctly small eyes, widely separated; subquadrate pronotum; sides of prothorax and elytra obliquely and broadly chalky-white; elytra with sides distinctly expanding to apices; and short metafemora.

  • Similar genus/genera: this distinctive genus is not easily confused with other genera, but superficially resembles Bacuris.
Geographic Distribution
  • Central America (Costa Rica, Mexico, Panama)
  • South America (Argentina, Bolivia, Brazil, Colombia, French Guiana, Paraguay, Peru)
Host Plants/Trees
  • Unknown
Girdling Behavior
  • Unknown
Notes

The genus Cherentes currently contains one species:
  Cherentes niveilateris (Thomson, 1868) [♂ specimen]
  Cherentes niveilateris (Thomson, 1868) [type specimen]

Generic Synonymies
  • The type species of this genus was originally described in the genus Eudesmus.
Selected References
 

Cherentes niveilateris
♂ specimen
© E.H. Nearns

 

© 2011-2015 Nearns, E.H., Lord, N.P., and K.B. Miller
The University of New Mexico and Center for Plant Health Science and Technology, USDA, APHIS, PPQ.