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

Diagnostic Features
  • Description: Elongate-oblong, small-sized, about 10 mm in length. Integument generally ferrugineous with whitish and ochraceous pubescence. Head with frons slightly elongate, about as wide as width of three lower eye lobes. Eyes with lower lobes oblong to distinctly narrow. Genae elongate, about as tall as lower eye lobes. Antennal tubercles prominent, widely separated; tubercles not armed at apex; antennae about as long or longer than overall body length, as much as 1 1/3 times longer; scape clavate, shorter than antennomere IV; antennomere III slightly sinuate, longer than scape and antennomere IV; antennae annulate. Pronotum transverse, roughly conical, wider at base, with distinct lateral, blunt tubercles. Elytra with sides roughly parallel, slightly attenuate; elytral apices individually rounded; elytra with distinct pale maculae; base of elytra with two prominent tubercles at humeri; each tubercle followed by a long carina to about middle of elytron. Basal 1/3 of elytra densely, coarsely punctate. Procoxae simple, without projection. Mesosternal process with apex feebly emarginate. Metafemora short in length, about 1/4 as long as elytra.

  • The combination of the following characters will help to distinguish this genus: relatively small-sized; base of elytra with two prominent tubercles at humeri; strongly transverse pronotum; elytra with sides roughly parallel; and short metafemora.

  • Similar genus/genera: superficially resembles Esonius and some species of Hesycha and Hesychotypa.
Geographic Distribution
  • South America (Colombia, Ecuador)
Host Plants/Trees
  • Unknown
Girdling Behavior
  • Unknown
Notes

The genus Carenesycha currently contains two species:
  Carenesycha carenata Martins & Galileo, 1990 [holotype specimen, ♀]
  Carenesycha velezi Martins & Galileo, 1995

Generic Synonymies
  • None
Selected References
 

Carenesycha carenata
holotype 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.