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Journal of Entomology and Zoology Studies 2018; 6(5): 134-137
E-ISSN: 2320-7078
P-ISSN: 2349-6800
JEZS 2018; 6(5): 134-137
© 2018 JEZS
Received: 22-07-2018
Accepted: 24-08-2018
Rebwar A Mustafa
Department of Horticulture,
Halabja Technical College of
Applied Sciences, Sulaimani
Polytechnic University,
Kurdistan region, Iraq
Hozan Q Hammamurad
Department of plant protection,
College of Agriculture,
Salahaddin University/ Erbil
Kurdistan region, Iraq
Nabeel A Mawlood
Department of plant protection,
College of Agriculture,
Salahaddin University/ Erbil
Kurdistan region, Iraq
Correspondence
Rebwar A Mustafa
Department of Horticulture,
Halabja Technical College of
Applied Sciences, Sulaimani
Polytechnic University,
Kurdistan region, Iraq
A new record of Elm Leaf Beetles, Xanthogaleruca
luteola (Muller, 1766) (Coleoptera: Chrysomelidae)
in Iraq
Rebwar A Mustafa, Hozan Q Hammamurad and Nabeel A Mawlood
Abstract
A new recorded of elm leaf beetles, Xanthoga lerucaluteola Muller was collected from Elms (Ulmus
spp.) in Sulaimani governorate –Iraq. A detailed description of the species and important characters
especially mandible, maxillae, antennae, pronotum, fore leg and male genitalia have been photographed.
The results showed that the mandibles tridenticles. Distalacinia triangular, dark yellow, apical part with
row of pale yellow setae. 3
rd
-6
th
antennal segments same length. Pronotum dark yellow with three black
spots, an hourglass at the middle and two oval spots laterally. 3
rd
tarsal segment biolobed. 1/5 apical part
of paramer triangular and Tegmen Y- shaped.
Keywords: (Coleoptera; Chrysomelidae); New record; Xanthogaleruca luteola; Iraq
Introduction
Chrysomelidae is one of the largest and most diverse families of Coleoptera. This family
includes about 37,000 species, which are categorized under 19 subfamilies
[1]
. Reports estimate
that this family may include well over 50,000 species, as many species are not yet identified.
At present, about 375 species (classified under 15 subfamilies) have been identified from the
Korean peninsula
[2]
. Xanthogaleruca Laboissiere, is one of important genus of the family
Chrysomelidae, subfamily Galeruinae which includes over nine species distributed in the
Palearctic region
[3-5]
. In the Palaearctic region, 13 species have been reported to date:
however, four species were synonymized, and thus, there are a total of nine valid species
[6]
.
Elms (Ulmus spp.), ornamental trees originally from Europe, Asia, and America, grow in Chile
mainly in parks and avenues in the central and south-central zones
[7, 8]
. Elm trees attacked by
the elm leaf beetle, Xanthogaleruca luteola Müller, amonophagous pest native to Europe that
defoliates Ulmus spp., with preference for European species ; both larvae and adults of X.
luteola Muller caused damage to elm tree by feeding on the leaves,they are not borer and don’t
damage the wood, adult beetles chew irregularly holes in the leaves while larvae skeletonise
the leaves eating everything but the veins, which gives the foliage a net-like appearance the
beetle don’t transmit the disease
[9]
. The species induced elm leaf volatiles which attracted the
egg parasitoid Oomyzusga llerucae a wasp specialized on elm leaf beetle eggs
[10]
. In Iran, the
species reported for the first time by
[11]
. It is one the major defoliator pests of elm trees
(Ulmus spp.), both larval and adult stages by feeding on the leaves. In addition to defoliation
and morphological changes, this pest causes physiological stress which increases the elm
susceptibility to secondary pest and Dutch elm diseases
[12]
. Elm leaf beetles are pests which
considered the greatest defoliator of elms in plantations and ornamental trees in Europe, and
has become the most important urban forestry pest in the USA, Argentina, Canada, and
Australia
[13]
. The adults of X. luteola are 1/4 inch long, olive-green beetles with black,
longitudinal stripes along the margin and center of the back (6). A new keys to identified the
subfamily, genus and species of leaf beetles of the British Isles is formulated by
[14, 15]
. The
main aim of this study was a detailed description of elm leaf beetle,
Xanthogaleruca luteola Muller and provide habitus and the important parts photographs which
guides to enable the non-specialist to identify the species.
Materials and Methods
The specimens examined in this study were collected from elm tree, Ulmus spp in different
localities of Sulaemani Governorate, Kurdistan region- Iraq from April till July- 2015.