(Schilling) (Hemiptera, Heteroptera, Rhyparochromidae, Drymini): a new alien established in North America.

, a species native to the Palearctic region, is reported from two localities in Montreal, Quebec. The species appears established and breeding in Quebec and is a new alien species in North America. A description of is given, with illustrations, and details of the life cycle and diagnostic characters.

The systematic position of Pamera noctuabunda Bergroth, 1907 (Hemiptera: Heteroptera: Rhyparochromidae), with a revised key to the species of Stalaria Harrington, 1980.

The rhyparochromid Pamera noctuabunda Bergroth, 1907 is shown to belong in the genus Stalaria Harrington, 1980, not in the genus Remaudiereana Hoberlandt, 1954, where it was placed by Harrington (1980). Stalaria nysias (Linnavouri, 1978) is synonymized with S. noctuabunda.

Hemiptera of Canada.

The Canadian Hemiptera (Sternorrhyncha, Auchenorrhyncha, and Heteroptera) fauna is reviewed, which currently comprises 4011 species, including 405 non-native species. DNA barcodes available for Canadian specimens are represented by 3275 BINs. The analysis was based on the most recent checklist of Hemiptera in Canada (Maw et al.

Paraindopamphantus bruneiensis gen. nov. et sp. nov., as the first representative of the subfamily Pamphantinae from South East Asia (Hemiptera: Heteroptera: Geocoridae: Pamphantinae: Indopamphantini).

Paraindopamphantus gen. nov., containing one species, I.

A review of the genus Entisberus Distant (Hemiptera: Heteroptera: Rhyparochromidae: Drymini).

The genus Entisberus Distant is reviewed and illustrated and diagnostic characters listed. The type species, E. archetypus Distant is illustrated and diagnostic characteristics noted.

Alaskan Heteroptera (Hemiptera): new records, associated data, and deletions.

Twenty-seven species of Heteroptera are recorded new to Alaska. Specimen data for ten additional species reported from Alaska without previously published data are also provided. Additionally, four species previously reported from the state are removed from the Alaska list of Heteroptera.

Threads and serendipity in the life and research of an entomologist.

This article presents an account of the development of Geoffrey Scudder's interest in entomology, with an emphasis on threads and serendipity. Early interests in Hemiptera, insect dispersal, evolution, and chemical ecology were followed by research on insect genitalia and seed bug systematics while at Oxford University. A faculty appointment in Canada led to research on water boatmen, water striders, cardenolides, faunistics, biodiversity, and habitat restoration.

Toward the origin of the secondary palate. A possible homologue in the embryo of fish, Onchorhynchus kisutch, with description of changes in the basement membrane area.

The oral cavity of embryos and larvae of the teleost Onchorhynchus kisutch was examined. Tissues were obtained at different ages prior to and after hatching and processed for transmission and scanning electron microscopy. A bilaterally symmetrical bulge developed from the superolateral aspect of the oral cavity and projected toward its floor, along the sides of the tongue.

Sequestration of cardenolides inOncopeltus fasciatus: Morphological and physiological adaptations.

The morphological and physiological adaptations associated with sequestration of cardenolides by the lygaeidOncopeltus fasciatus are summarized and discussed. Cardenolides are efficiently accumulated inO. fasciatus; however, the insect does not appear to suffer any physiological cost as a result of handling large amounts of these plant toxins.

Selective sequestration of milkweed (Asclepias sp.) cardenolides inOncopeltus fasciatus (Dallas) (Hemiptera: Lygaeidae).

The cardenolide content of the gut, wings, and fat body ofOncopeltus fasciatus was examined. The female fat body contained 4-5% of the total cardenolide content of the insect. The cardenolide content of male fat body, and gut and wings of both sexes was below the detection limit of the cardenolide assay.

Excretion of ouabain by Malpighian tubules of Oncopeltus fasciatus.

An in vitro preparation of Malpighian tubules was used to investigate the excretion of the polar cardiac glycoside, ouabain, in Oncopeltus fasciatus. Tubules were found to consist of at least two morphologically and physiologically distinct segments, both of which metabolized ouabain. The distal segment (segment II) secreted primary urine and ouabain.

Torque curves produced at the knee during isometric and isokinetic exercise.

Torque curves recorded during knee extension and flexion at various speeds of isokinetic effort and at selected positions of isometric effort were studied to determine the amount of torque generated at selected speeds of motion, the point in the arc of motion where maximal torque output occurred, the relationship between isometric and isokinetic torques, the relative value of knee flexion and extension torques at various speeds, and the constancy of results in isokinetic testing. The isokinetic torques produced were less than isometric values and decreased as the rate of motion increased. Production of peak torque output occurred later in the arc of motion as the speed of contraction increased in extension.

Predation in Gerris (Hemiptera): Reactive distances and locomotion rates.

Two of the parameters which determine the rate at which prey are encountered by a predator, i.e. the distance at which a predator responds to a prey and its rate of movement relative to the prey's, were determined for all the stages of five species of Gerris using gerrids and Drosophila as prey.

Developing interdisciplinary courses for allied health students: a retrospective view.

Innovative interdisciplinary education in allied health has been developed in order to give students insight into role competencies of other professionals, improve the quality of health care while reducing costs, and facilitate the interdependent functioning of allied health care providers in meeting patient or client needs. The process of interdisciplinary course development requires the same communication and needs identification by faculty as is necessary for the provision of team care by practitioners. A retrospective account of interdisciplinary course development in a major health sciences center, together with materials developed for class presentation, may serve to encourage this type of activity elsewhere.

Food consumption in Gerris (Hemiptera).

The parameters influencing food consumption in larvae and adults of five species of Gerris were studied. An experimental components analysis was utilized with emphasis placed on measurements of the length of time the insects spent handling food items, and the amount of food in the gut at any one time. The following characteristics were noted: (1) The maximum feeding time required to achieve satiation was 2-2.