| the chemical volatiles (semiochemicals) produced by neotropical stink bugs (hemiptera: pentatomidae). | in recent years the growing concern about environmental changes and how we are using the natural resources have triggered a search for natural products as alternatives to synthetic pesticides. the stink bugs produce a wide variety of chemical compounds (semiochemicals) that show potential to manage these insects. the stink bugs chinavia impicticornis (stål), c. ubica (rolston), dichelops melacanthus (dallas), euschistus heros (f.), piezodorus guildinii (westwood), thyanta perditor (westwood) and ... | 2008 | 19061033 |
| study of acrosome formation, interspecific and intraspecific, in the testicular lobes of some pentatomid species. | the objective was to compare the formation of the acrosome in the testicular lobes of the species antiteuchus tripterus f. and platycarenus umbractulatus f., belonging to the subfamily discocephalinae, and euschistus heros f., mormidea quinqueluteum l., oebalus sp. and thyanta perditor f., belonging to the pentatominae (heteroptera: pentatomidae). it was found that, in general, the behavior of periodic acid schiff-positive granules for all of the species analyzed is similar for these species. in ... | 2010 | 20883131 |
| the gastric caeca of pentatomids as a house for actinomycetes. | microbes are extensively associated with insects, playing key roles in insect defense, nutrition and reproduction. most of the associations reported involve proteobacteria. despite the fact that actinobacteria associated with insects were shown to produce antibiotic barriers against pathogens to the hosts or to their food and nutrients, there are few studies focusing on their association with insects. thus, we surveyed the actinobacteria diversity on a specific region of the midgut of seven spec ... | 2012 | 22682021 |
| sex attractant pheromone from the neotropical red-shouldered stink bug, thyanta perditor (f.). | olfactometer bioassays showed that odors from mature thyanta perditor males attracted females but not males. furthermore, odors from females did not attract either sex, indicating that like other phytophagous pentatomid bugs, the males produce a sex pheromone. attraction appeared to peak in late afternoon to evening. the headspace volatiles collected from male and female t. perditor were analyzed by gc-ms and hplc. a male-specific compound, methyl (2e,4z,6z)-decatrienoate (2e,4z,6z-10:coome), wa ... | 2005 | 16222780 |