A survey of parasitoids from Greece with new associations.

We report 22 parasitoid species from Greece that have emerged from their hosts belonging to Blattodea, Coleoptera, Hymenoptera and Lepidoptera, including 12 Braconidae, one Eulophidae, one Evaniidae, seven Ichneumonidae, and one Tachinidae. Nine parasitoids are reported for the first time in Greece, i.e., three Ichneumonidae: Campoplexdifformis (Gmelin, 1790), Gelisalbipalpus (Thomson, 1884), and Lysibiatenax Townes, 1983; five Braconidae: Charmoncruentatus Haliday, 1833, Dendrosoterprotuberans (Nees, 1834), Dolichogenidealongipalpis (Reinhard, 1880), Ecphylussilesiacus (Ratzeburg, 1848), and Spathiuscurvicaudis Ratzeburg, 1844; and one Eulophidae: Melittobiaacasta (Walker, 1839). Nine of the 23 recorded parasitoid-host associations are new. These findings are discussed in relation to the overall related parasitoid-host associations in the target area, as well as the potential of parasitoid use in the biological control of pests.

Evaluation of the Natural Zeolite Lethal Effects on Adults of the Bean Weevil Under Different Temperatures and Relative Humidity Regimes.

We studied the insecticidal activity of different concentrations of very high quality natural zeolites (zeolitic rock containing 92 wt% clinoptilolite) applied on dry beans. The test species was adult bean weevils Acanthoscelides obtectus (Say; Coleoptera: Bruchidae), and the variables included different temperatures and humidity regimes. At certain natural zeolite concentrations the adult mortality approached 100% within the first day of exposure. The lethal natural zeolite concentration for 50% adult mortality (LD50) was 1.1 g/kg dry beans 1 d after exposure. The temperature had no significant effects on the insecticidal potential of the tested natural zeolite formulations. The lethal time (LT) for 50% adult mortality (LT50), at a concentration of 0.5 g/kg dry beans was 106.429, 101.951, and 90.084 min at 15, 20, and 25°C, respectively. It did not differ significantly. In contrast, relative humidity (RH) and exposure time as well as their interactions had a significant effect on natural zeolite formulation and insecticidal potential. At a constant concentration of 0.5 g/kg dry beans and 25°C at 23%, 34%, 53%, and 88% RH the LT50 ranged from 61.6 to 75.9 min; at 72% RH the LT50 was 110.6 min. The results indicate that natural zeolite at low concentrations is promising for the control of the bean weevil under different temperatures and RH regimes.

Assessing ego defense mechanisms by questionnaire: psychometric properties and psychopathological correlates of the Greek version of the Plutchik's Life Style Index.

The Life Style Index (LSI; Plutchik, Kellerman, & Conte, 1979 ) was designed to assess defense mechanisms, assuming that their use is related to specific affective states and diagnostic concepts. We aimed to assess the psychometric properties of its Greek version and its relation to psychopathological symptoms. The LSI was back-translated into Greek and was administered to 1,261 participants. Six factors were identified, 5 of them largely corresponding to the original version's defenses (compensation, denial, projection, reaction formation, and repression). The sixth factor, named regressive emotionality, included mainly the original scale's regression and displacement factors. Test-retest reliabilities, internal consistencies, and construct validity were quite satisfactory. Most defenses were able to discriminate psychiatric patients from healthy participants and were associated with specific psychopathological symptoms in a theoretically expected mode, further supporting the validity of the Greek version. Our findings suggest that the LSI, based on both psychoevolutionary and psychoanalytic theory, can provide a solid ground for assessing ego defense mechanisms.