نتایج جستجو برای: Andricus burgundus؛ Andricus burgundus؛ Cynipidae
تعداد نتایج: 293 فیلتر نتایج به سال:
Oak gallwasps (Hymenoptera, Cynipidae, Cynipini) are one of seven major animal taxa that commonly reproduce by cyclical parthenogenesis (CP). A major question in research on CP taxa is the frequency with which lineages lose their sexual generations, and diversify as purely asexual radiations. Most oak gallwasp species are only known from an asexual generation, and secondary loss of sex has been...
طی نمونه برداریهایی که در سالهای 83-82 به منظور شناسایی حشرات گالزای بلوط در استان آذربایجان غربی انجام پذیرفت، دو نوع گال مختلف برای اولین بار از روی درختان بلوط Quercus libanii جمع آوری گردید. زنبورهای مولد گالهای جمع آوری شده بر اساس شکل ظاهری گالها شناسایی واسامی توسط دکترجورج ملیکا از آزمایشگاه سیستماتیک پارازیتوییدها تایید نهایی شد. گونه های زنبورمولد این گالها عبارتند از : 1- An...
Four new species of oak gallwasps, Andricus ahmeti, A. anatolicus, A. bakrachus and A. turcicus (Hymenoptera: Cynipidae: Cynipini) are described from Turkey. All four species are known only from asexual females and induce galls on twigs and young shoots on Q. infectoria, Q. macranthera and Q. petraea. Data on the diagnosis, distribution and biology of the four new species are given. Andricus st...
Three major hypotheses have been advanced for the adaptive nature of plant galls: nutrition, enemyavoidance, and microenvironment. Of these, the microenvironment hypothesis has been frequently invoked, but rarely tested directly. We tested this hypothesis in a population of Andricus quercuscalifornicus (Bassett) (Hymenoptera: Cynipidae) wasps inducing galls on Quercus lobata Née (Fagaceae) tree...
The last instar nymph of Anacroneuria singularis Righi-Cavallaro & Lecci is described and figured from reared specimens collected in Pará State, Brazil, a new locality record for Brazil. The nymphs of this species differ from other known species by the uniformly dark brown anterior of the head and the ochraceous spots of the pronotum.
Abstract Ozognathus cornutus (LeConte, 1859) (Coleoptera: Ptinidae: Ernobiinae), species native to North America, is a saproxylophagous and known feed on decaying tissues within conspicuous galls vegetal organic material such as dried fruits or small wood shavings insect excrements in galleries made by other woodboring species. A few years after the first record 2011, its naturalization Italy h...
Gall-inducing insects have especially intimate interactions with their host plants and generally show great specificity with regard to both the host-plant species and the organ (e.g. flower, leaf) galled. However, the relative roles of shifts between host species and between host-plant organs in the diversification of gall-inducers are uncertain. We employ a novel and general maximum-likelihood...
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