CONTENT - International Society of Zoological Sciences

S1 ICZ2008 - Abstracts
Contribution to the aphid fauna (Hemiptera: Aphidoidea) of
Imereti region (Western Georgia)
Shalva Barjadze 1 , N. Bakhtadze 2 , G. Bakhtadze 2 , N. Kintsurashvili 2 , N.
Chakvetadze 1 and N. Zhukovskaya 2
1, Laboratory of Entomology, Institute of Zoology of Georgia,
Chavchavadze av. 31, 0179, Tbilisi, Georgia
2 Institute of Zoology of Georgia, Laboratory of Karyosystematics and
Biochemistry, Chavchavadze av. 31, 0179, Tbilisi, Georgia
Aphids were investigated in Imereti region in 2004-2007. Of the
aphids collected 17 species were first record for the abovementioned
territory. Also, apterous and alate viviparous female, oviparous female
and alate male of Macrosiphum symphyti sp. nov. living on
Symphytum asperum (Boraginaceae) were described and illustrated.
Aphis salsolae was recorded for the first time from Transcaucasia.
After this investigation, aphid species number increased up to 48
species in this region, which are united in the 5 subfamilies and 27
genera. It was studied peculiarities of the aphids’ distribution in the
landscapes of investigated territory.
This abstract is a result of the designated project, which has been
fulfilled by financial support of Georgian National Science Foundation
(Grant № GNSF/ST 06/6-086).
Effect of parasitism by Varroa destructor on morphometric
characters of northern Algeria honeybees (Apis mellifera
intermissa)
Messaouda Belaid 1 , Salaheddine Doumandji 2 , Djamila Benaziza 3 and
Assia Habbi 4
1
Department of Biology. Faculty of Sciences. University M’Hamed
Bougara, Boumerdes, Algeria
2
Department of Zoology. National Institute of Agricultural El Harrach
Alger, Algeria
3
Ecole Normale supérieure Kouba, Algeria
4
Apiary Oued Aissi Tiziouzou, Algeria
Varroa destructor represents one of the major enemies of honeybees.
It was found in Algeria in 1981 in apiary Oum Theboul el kala (East
Algeria). Recently, several studies have been performed on honeybee
morphometry in various localities from East Algeria. The results
shows the heterogeneity in the population of Apis mellifera intermissa.
The parasite had no significant effects on both the length of antenna
and width of the posterior wing but affected the fresh body weight,
length of tongue, length and width of the anterior wing, and length of
tibia. In order to investigate the effects of Varroa on honeybees in
Northern Algeria, 21 morphometric characters were used; 10 to 30
worker bees per colony and two or five colonies were sampled at
each location.
Inventory and identification of some thrip species in coastal and
sub-coastal regions of Algeria
Hassina Benmessaoud-Boukhalfa, F Mouhouche and F Belmazouzi
Département de zoologie agricole et forestière, Institut national
agronomique, 16200 Alger, Algeria
During the last decade, the presence of thrips on crops has
manifested itself in the increase in viral diseases transmitted by
certain species. This study proposes a first approach to these
Thysanoptera, which have been very little studied in Algeria. An
exploration and identification of thrips found on different host plants in
coastal and sub- coastal Algeria were made for 2 consecutive years.
The taxonomic study enabled the determination of 5 species. There
were two Tubulifera-Phlaeothripidae, being Gynaikothrips ficorum
(Marchal, 1908), a species strictly limited to Ficus retusa, and
Haplothrips tritici (Kurdjumov, 1912), harvested from Anacylus
clavatus and Avena sterilis, plus two Terebrantia-Thripidae, i.e.
Odontothrips loti (Haliday, 1852), found on jasmine and Pittosporum
tobira, and Frankliniella occidentalis (Pergande, 1895) collected from
roses, Cucurbita pepo and Cucumis sativus. The fifth species was
Limothrips cerealium (Haliday, 1836), which was harvested from
Triticum durum, Triticum aestivum and Avena sterilis.
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The Glypheoidea: a molecular study performed on the newly
discovered species in the Coral sea
Marie-Catherine Boisselier 1 , Nicolas Vidal 1 , Céline Bonillo 2 and
Bertrand Richer de Forges 3
1
UMR 7138 – MNHN, 43 rue Cuvier, 75005 Paris, France.
2
IFR 101 – MNHN, SSM, 43 rue Cuvier, 75005 Paris, France.
3
UMR 7138 – IRD, B.P. A5, 98848 Nouméa Cedex, Nouvelle-
Calédonie.
The Glypheoidea is a group a lobster-like decapod crustaceans. Like
monoplacophorans and the crossopterygians, they were long known
from fossil specimens only. A male specimen of a living species,
caught off the Philippines in 1908 at a depth of 185 meters, was kept
in the collections of the Smithsonian Institution in Washington DC, but
its identity was not recognized until 1975, when it was described as
Neoglyphea inopinata by Forest & de Saint Laurent. Subsequent
expeditions in 1976, 1980, and 1985, captured additional specimens
at exactly the site of the Albatross 1908 station, and another
specimen was trawled in the Timor Sea. In October 2005, a single
female specimen of another glyphaeid species was discovered on a
seamount in the Coral Sea, near New Caledonia, at a depth of 400
meters. Nicknamed “Jurassic shrimp”, it received some attention from
the media. This specimen represents a second genus and species of
Recent Glyphaeoidea, and has been named Laurentaeglyphea
neocaledonica (Richer de Forges, 2006; see also Forest, 2006). A
molecular study based on 5 genes (two mitochondrial genes: COI and
16S and three nuclear genes: H3, 18S and 28S) was performed in
order to test the phylogenetic relationships of these living fossils
among all the major decapod infraorders within the suborder
Pleocyemata and to confirm or infirm Glypheoidea as the sister group
of Astacidae.
What the Internal Transcribed Spacer 2 of the Nuclear Ribosomal
DNA Have to Say About the Systematics of Triatoma dimidiata
Latreille, 1811 (Hemiptera: Reduviidae) from Jutiapa, Guatemala
and Other Central American Populations?
Andrea A. Cabrera
Laboratorio de Entomología Aplicada y Parasicología, Escuela de
Biología, Universidad de San Carlos de Guatemala. 12 calle 2-05
zona 2, El Zapote, Guatemala
Chagas disease is caused by the protozoan parasite Trypanosoma
cruzy, and is transmitted by Triatominae bugs, mainly Triatoma
dimidiata in Central America. Given that evidence suggests that the
ribosomal DNA internal transcribed spacer 2 (ITS-2 rDNA) may
become the DNA marker by excellence for species distinction and
may as well be very useful for population differentiation within
Triatominae. The sequences ITS-2 of three populations of T. dimidiata
from Jutiapa, Guatemala, were analyzed and compared with other
populations from Guatemala, El Salvador, Honduras, Nicaragua,
Panama and Mexico. The sequence comparison, and phylogenetic
analysis indicate that ITS-2 is a useful marker to establish some
relationships in a population level for T. dimidiata. It was not possible
to differentiate the populations from Jutiapa, El Salvador and
Honduras, with no nucleotide difference detected among the
sequences. Little differences were detected with Nicaraguan
population. Two different clades were also formed, one with the
population of Panama and the other with the populations of Mexico
and Quiche (Guatemala). These results are consistent with the
denoted forms of T. dimidiata dimidiata, T. d. capitata and T. d.
maculipennis. The great differences in nucleotide composition and the
early separation of the clade of Peten support the specific status of
this population as T. sp. aff. dimidiata. This separation suggests that T.
dimidiata populations followed different evolutionary paths and that
problems may appear in the establishment of an effective control of
the bug.