Aspectos biológicos, morfológicos e comportamentais de adultos de Podisus sculptus Distant (Heteroptera, Pentatomidae)

Abstract

BIOLOG ICAL, MORPIIOLOGICAL ANO BEIIAVIORAL ASPECTS OF PODISUS SCULPTus DISTANT AOUI.TS (HETEROPTERA, PENTA TOMIDAE). Some biological, morphological and behavioral aspects of adults Podisus sculp/us Distant, 1889 (Heteroptera, Pentatomidae) fed with Bombyx 1II0ri Linnaeus, 1758 (Lepidoptera, Bombycidae) (fourth and fifth instar caterpillars) and Tenebrio moli/or Linnaeus, 1758 (Coleoptera, Tenebrionidae) (third and f0U11h instar caterpillars) were studied and no differences were found between these two preys. Average va lues for the parameters studied were: period of pre-oviposition (6 .14 days), ov iposition (8.57 days) and pos-oviposition (3 .57 days); number ofeggs/female (97.7 1); number ofpostures/female (3.96); female weight (68.90mg) and male weight (47.43 mg) . Podisus sculp/us has brownish color, and foUl' ye llow spots in the scutelum: one close to the head and three across the elitra near the pronotum. Matings were more freguent between 15 and 19 hours and the male search for the female which showed movements of antennae. This insect showed cannibalism only in hi gh population density and shortage 01' food. KEY WORDS . Hete roptera , Podisus sClllplus, behavior, bi olo gical aspects, morphology

Reproductive characteristics of the predator Podisus nigrispinus fed with an insect resistant soybean variety

“…The number of preyed caterpillars was counted even during the period of the sexual intercourse because females of predators such as Podisus sculptus Distant (Heteroptera: Pentatomidae) feed during this period (Nascimento et al, 1996).…”

The predatory stinkbug Podisus nigrispinus : biology, ecology and augmentative releases for lepidoperan larval control in Eucalyptus forests in Brazil.

“…Wild and laboratory reared males are greenish with a punctated dorsal thorax and a proeminent humeral spine. The sex of adults can be determined by the presence of genital and subgenital plates in females while males have only the pygophore (for a complete description and illustration, see Nascimento et al [64]). Males and females may also be separated during the fifth nymphal stage: female nymphs usually have a wider and larger reddish medio-dorsal plate in the abdomen than males.…”

Economic injury levels and economic thresholds for Leptoglossus zonatus (Dallas) (Hemiptera: Coreidae) infesting seed maize

“…Insects were provided with fresh maize ears (stage R 2 to R 4 ) from hybrid ‘A’ and a portion of cotton soaked in distilled water until the onset of the experiment. Adults used for the infestations were sex distinguished via examination of male (pygophore with only one plate) and female (split pygophore) genitalia …”

“…Adults used for the infestations were sex distinguished via examination of male (pygophore with only one plate) and female (split pygophore) genitalia. [33][34][35] Insects used in the LC 50 (lethal concentration that kills 50% of the population or the amount of a given insecticide applied all at once which causes the death of 50% of a group of test animals (L. zonatus)) assays (both initial and final) were collected from commercial maize fields in order to include the variability existing in the field. Insects were maintained as described above until their use.…”