Phylogenesis and System of the Aphids of the Family Lachnidae (Aphidoidea, Homoptera) with Taking into Account the Data Concerning Caryotypes. Mamontova V. A. - Discussion with the world aphidologists is continued because of the essential dissonance concernin the interpretation of the evolution, phylogenesis and system of the aphids of the family Lachnidae. In polemics are used the numerous recent publications as well as analysis of caryotype meanings prepared on the base of the literature data including near 60 species of the mentioned family. The original conclusions containing in this paper are rather well argumented and also some new aspects of the discussed problem are elucidated.
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A Redescription of Thermocyclops uenoi (Crustacea, Copepoda). Mirabdullayev I. M., Ueda H. - Thermocyclops uenoi Ito, 1952, a poorlyknown groundwater species is redescribed based on the materials of collection Dr. T. Mizuno. A key to Japanese species of the genus Thermocyclops is provided.
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New Species of Amabiliid (Cestoda, Cyclophyllidea) for Ukraine Fauna. Greben O. B., Kornjushin V. V. - At the result of investigation of cestode collection including the material from the aquvatic birds of easten Ukrainian Polesye 57 cestode species were found. Six of them were from the family Amabiliidae. All species are new for Ukraine fauna. Joyexilepis acanthorhyncha, J. octacantha, J. pilatus, Ryjikovilepis dubininae, Tatria minor, T. mircia are redescribed.
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New Species of the Genera Cryptotendipes, Dicrotendipes, Microtendipes and Stenochironomus (Diptera, Chironomidae, Chironominae) from the Russian Far East. Zorina O. V. - Cryptotendipes lenzi sp. n., Dicrotendipes ovaleformis sp. n., D. unicus sp. n., Microtendipes sakhalinensis sp. n. and Stenochironomus hastatus sp. n. are described on adult males from Primorskiy Kray, Khabarovskiy Kray and Sakhalin Island of the Russian Far East.
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The First Record of Stauroceras chaitosiphon (Homoptera, Aphidinea) in Ukraine. Zhuravlev V. V. - The summer apterous viviparous and alate viviparous females of Stauroceras chaitosiphon Börner are described. The species is recorded for the first time in the Ukraine. The problem of validity of the genus Stauroceras Börner is discussed.
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Effect of Microsporida Infection on the Esterases Activities in Agrotis segetum Caterpillars. Yefimenko T. M., Sundukov O. V., Issi I. V. - Microsporida infection of Agrotis segetum Schiffermüller larvae causes numerous changes of separate fractions activities belonging to carboxylesterase isoenzyme complex. Such shifts are found to correlate with parasite development stages, activities of several fractions being increased early after Vairimorpha antheraeae incorporation up to the beginning of sporogony. During intensive sporogony and spore forming the enzyme activities are proved to decrease. Activities of multiple esterase molecular forms at different microsporidiosis stages may be correlated with cell pathology patterns and cell compartments damages taking part in the enzymes synthesis and transportation. These described changes may be also due to such Microsporida-induced pathological features as lipid metabolism and hormone balance impair followed by decreased reproductive function.
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Peculiarity of Structural Îrganization of Thymus Animal in Different Taxonomic Groups. Klimenko O. N. - Peculiarities of structural organization of thymus in vertebrates are considered. Thymus is shown to have a differential structure, with a gradient of lymphocytes position. Epithelioreticulocytes and thymus corpuscles have a significant polymorphism.
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Morphology and Feature of Bionomics of Glochidia Mollusks of the Genus Beringiana (Bivalvia, Unionidae) of Kamchatka and Northern Kuriles. Saenko E. M., Shed'ko M. B., Kholin S. K. - The morphologies of Beringiana beringiana, B. youkonensis, B. compressa and Beringiana sp. glochidia were investigated using both light and scanning electron microscopy. The quantitative features observed by light microscopy do not distinguish species, while the scanning electron microscope gives some diagnostic characters for species differentiation (the order and number of the hook macrospines for B. beringiana, B. youkonensi and Beringiana sp.; morphology of the outer surface of the glochidial valves for all investigated groups of the bivalves). The first data on fish glochidiosis caused by B. youkonensis from Azabachye Lake basin (Kamchatka Peninsula) are presented, including information on fish hosts, glochidia localization on fish bodies, and period of infection.
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On the Taxonomic Status of the Genus Lyruterina and Cestodes of Suborder Taeniata. Spasskiy A. A. - The history of the paruterinoid cestodes from the genus Lyruterina is presented. The new composition of the suborder Taeniata is proposed. Three following groups of tapeworms differing in the life cycle peculiarities are included into the suborder. 1. Trixenic parasites of predacious and fish-eating vertebrates (Gryporhynchidae, Dipylidiidae, Mesocestoididae) with three larval stages (oncosphere, cercoid, tetrathyridium or armatetrathyridium) and three corresponding host categories (first intermediate, second intermediate, final). 2. Dixenic parasites of predacious warm-blooded vertebrates (Taeniidae, Paruterinidae) with two larvae (oncosphere and cysticercus on armathyridium) and two hosts (intermediate and final, both vertebrate). 3. Dixenic parasites of non-predatory birds (Biuterinidae, Metadilepididae, Anonchotaeniidae) with unknown life cycles of most of the species. Lyruterina and Metroliastes, with cercocystis type of cercoid, insect intermediate hosts and Galliformes as final host, are included into biuterinids.
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A New Sawfly Species of the Genus Corynis (Hymenoptera, Cimbicidae) from Armenia. Ermolenko V. M. - A new Cimbicidae sawfly species of the subfamily Coryninae, Corynis chosrovica Ermolenko, sp. n., is described. From the most (12) species of the genus Corynis Thunberg, it differs by the absence of white-yellow body pattern, and from the lesser part (4) of species by white or white-yellow colour of legs. The species described is closely related to 4 Mediterranean species with white legs, from which it differs by details of morphology of body and its appendages.
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A New Subspecies of the Genus Leistus (Coleoptera, Carabidae) from Western Caucasus. Putchkov A. V. - Leistus (s. str.) denticollis adygeicus subsp. n. from West Caucasus (Adygeya, Caucasian reservation, Abago pasture) is described. Its comparison analyse with nominotypical subspecies is given.
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The Systematic Position of the Lower Cretaceous Beetle Mesecanus parvus (Coleoptera, Staphylinoidea) from Turga. Perkovsky E. E. - Mesecanus parvus Ponomarenko, "a form, that is rather incertain from the taxonomic standpoint" (Ponomarenko, Ryvkin, 1990) was described as a member of family Silphidae. The transfer of the Early Jurassic Mesecanus communis (Ponomarenko) (Perkovsky, 1999), the type species of the genus Mesecanus, into Leiodidae required some clarificaton of the taxonomic position of M. parvus. In the present article the special genus of Early Cretaceous agyrtids, named for A. G. Ponomarenko, is established. It is characterized by the absence of preapical teeth on mandibulae, not enlarged apical segment of maxillary palpi, antennae with distinct apical club of 5 segments, elytra with fine striae. In addition to that, the Ponomarenkia parva is much smaller then the all known agyrtids.
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Response to Selection for a High or a Low Sex Ratio in Wolbachia-infected Lines of Trichogramma cordubensis Subjected to High Temperature. Pintureau B., Bolland P. - Trichogramma cordubensis is an egg parasitoid completely infected by endosymbiotic bacteria belonging to the Wolbachia genus and inducing the thelytokous mode of reproduction. Previous results showed that the thelytoky persistence at high temperature is genetically variable. Experimental selection was performed to confirm these results and to determine the possibilities of adaptation to the environment assuming cyclic bisexual reproduction. No selection was efficient and the genetic variability of the sex ratio at high temperature is probably lower than previously assumed. This reduces the adaptive possibilities in the studied Trichogramma species.
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Entomopathogenic Viruses as the Regulators of Number of the Destructive Insects. Vasylyeva V. L., Lebedinets N. M. - Main biological characterisics of the entomopathogenic viruses of the family Baculiviridae, as the best of potential insecticides are presented. Interaction in the system parasite-host, namely the virus (causative agent of disease) versus the insect (sensitive organism), which is responsible for existence of these antagonistic species in the nature, is characterized. It should be noted that the progress of man in the regulation of the number of destructive insects in agrobiocenosis is dependent to main effective extent on the level of studying of these mechanisms.
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The Role of Spatial Population Structure of the Bank Vole Clethrionomys glareolus (Rodentia, Arvicolidae) in Self-regulation Processes. Mezhzherin V. A., Semenjuk S. K. - It is confirmed pulsing changes in spatial population structure of the bank vole is proved to regulate using characteristics of resources.
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The Situation of the Wolf Population in the Carpathian National Natural Park. Kysselyuk O. I. - The situation of the numbers of wolves and the types of population control in the Carpathian National Natural Park (CNNP) has been analyzed along with the mutual relationship of wolves and ungulates within the boundaries of the CNNP. In the history of the CNNP, regulation and control of the number of wolves within the park's borders was conducted without scientific substantiation. Wolves are an integral part of the reserved ecosystems of the CNNP and the regulation of their numbers is not always expedient. The reduction of ungulates has been observed in the last year; this was resulted in the undermining of the food base of these predators. The regulation of their population by shooting is justified only when there will be observable damage by wolves along with a substantial increase in the number of wolves in the CNNP.