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Ciência Rural

Print version ISSN 0103-8478

Abstract

SEFFRIN, Rita de Cássia Andrade dos Santos; COSTA, Ervandil Corrêa; COUTO, Mara Rúbia Machado  and  LOPES, Sidinei José. Morphometric measurements of males and females of Oncideres dejeani Thompson, 1868 (Coleoptera: Cerambycidae). Cienc. Rural [online]. 2006, vol.36, n.4, pp. 1313-1316. ISSN 0103-8478.  http://dx.doi.org/10.1590/S0103-84782006000400044.

The objective of this work was to identify morfologycal aspects of Oncideres dejeani that helps the sexual differentiation of this species. Morphometrics data of 25 couples were analysed with a stereo microscope and pachimeter indicated that femur length and width of male individuals were smaller than on the females however the antennas were larger and there is a differentiation on the antennas length after the forth antennomeres as indicated by the Mann-Whitney test at 5% error probability. Female and male presented significant differences regarding elytra length, width between tubercle, apical width of elytra of hind prothoracic. For their facility in being taken, the measurements of body size and antennae length can be considered enough as morfologycal data hat can be used for sexual differentiation of this species.

Keywords : black wattle; sawyer; beetle.

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