Sexual Dimorphism in Pseudonemorphus Versteegi (Ritsema) (Coleoptera: Cerambycidae), Citrus Trunk Borer

Authors

  • Kanchan Saikia
  • N. S. Azad Thakur
  • Alemla Ao
  • Sudhida Gautam

Abstract

The citrus trunk borer, Pseudonemorphus versteegi (Ritsema) (Coleoptera: Cerambycidae), is the most destructive pest of citrus in the entire northeastern Himalayan region of India. Adult beetles are stout, large in size, measuring 18.0 to 33.3 mm in length with bluish white elytra and 11-segmented filiform antennae. The antennae are 2.71 and 1.61 times longer than the lengths of the bodies of male and female beetles, respectively. These studies reveal and detail sexual dimorphism characters in adult of Pseudonemorphus versteegi.

Resumen: El barrenador del tronco de los cítricos, Pseudonemorphus versteegi (Ritsema) (Coleoptera: Cerambycidae), es la plaga más destructiva de los cítricos en toda la región noreste del Himalaya de la India. Los escarabajos adultos son robustos, de gran tamaño, de 18.00 a 33.32 mm de longitud, con élitros de color azul blanco y con antenas filiformes de once segmentos. Las antenas fueron 2.71 y 1.61 veces más largas que la longitud de los cuerpos de los escarabajos machos y hembras, respectivamente. Estos estudios revelaron aspectos del dimorfismo sexual en los adultos de Pseudonemorphus versteegi.

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Published

2012-09-01

Issue

Vol. 95, No. 3 (September 2012)

Section

Research Papers

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