Authors:
Yana Wenceslas*
, Dzokou Victor Joly, Mveyo Ndankeu Yves Patrick2,4, Douni Goune Vanissa Sonia1
and Tamesse Joseph Lebel ,Cameroon
|
Abstract:
Psyllids are phloem feeding insects which induce damages to their host plants. Few number of
psyllid species has been described in Cameroon and many species remain unknown. Recent field
survey carried out in Cameroon, permitted to collect Trioza schefflerae sp. nov. on Schefflera
abyssinica (Araliaceae) a valuable timber tree on which it causes serious damage by inducing pit
galls and leaf necrosis. Adult were captured with a sweep net of 0.5 mm mesh size and an
aspirator while the larvae were sampled directly on the host plant at Titia locality, West,
Cameroon. Drawings and measurements were made from slide-mounted material. The nymph
margins covered by truncate tubular sectasetae; circumanal semi-circular. Adult, genal cones
developed with rounded apices; male genitalia with a pedunculate proctiger, paramere slightly
narrow apically; aedeagus presents a sickle-shaped apical inflation with a sclerotized end tube of
ductus ejaculatorius; female genitalia with a trapezoidal proctiger bearing medial long setae;
subgenital plate triangular with a rounded apex. Trioza schefflerae is closely related to T. valida
from Taiwan but the two species differ on the shape of head, antenna, wings, and female
genitalia. Then T. schefflerae is a new species of psyllid in Triozidae family |
