Marginitermes cactiphagus Myles, 1997 食刺边白蚁

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1. FINE STRUCTURE OF THE DIGESTIVE SYSTEM OF MARGINITERMES HUBBARDI (BANKS)

   Binan Lu · 1991 · Acta Entomologica Sinica

   Resumen

   The termite Marginitermes hubbardi (Banks) was collected at the countryside of Tucson,USA,and kept in the laboratory.The fine structure of the digestive system was studied with transmission and scanning electron microscopes according the conventional technique of electron microscopy.It was seen that the foregut possessed a thick intima with longitudinal ridges composing spiny scale-like projections.The epithelial cells possess a layer of dense microvilli beneath the intima.The cardiac valves are situated between the foregut and the midgut and composed of twelve projections of three types and organized into four groups The midgut possesses typical columnar epithelial cells with long microvilli pointing to the lumen which are arranged in a hexagonal pattern when viewed above.The peritrophic membrane is thick and possesses electronic dense inner projections.The anterior portion of the hindgut is enlarged to form the paunch which contains a large quantity of microorganisms to digest cellulose in the food.It has a thin wall and the epithelial cells also possess microvilli beneath the intima.The rectum has six rectal pads and the epithelial cells in the section are rich in mitochondria basal plasma membrane infoldings,assuring the function of reabsorption.

2. A SECOND SPECIES OF THE DRYWOOD TERMITE GENUS MARGINITERMES (ISOPTERA: KALOTERMITIDAE)

   Timothy G. Myles · 1997 · The Canadian Entomologist

   Resumen

   A second species of the dry wood termite genus Marginitermes Krishna is described from Baja California del Sur, Mexico, and a redescription of the genus is provided. Soldier head capsules, mandibles, antennae, labra, postmenta, and pronota are illustrated for Marginitermes cactiphagus Myles sp.nov. and Marginitermes hubbardi (Banks). Both species occur in dead skeletons of columnar cacti and other wood species. Both species differ from related drywood termites in the structure of the proventricular armature, suggestive of unique adaptation for intestinal manipulation of cactus wood fibres. Marginitermes is shown to be related to a western continental subgroup of Incisitermes comprised of I. minor (Hagen), I. marginipennis (Latreille), and I. fruticavus Rust.

3. NUTRITIONAL BIOCHEMISTRY, BIOENERGETICS, AND NUTRITIVE VALUE OF THE DRY-WOOD TERMITE, MARGINITERMES HUBBARDI (BANKS)

   La Fage, Jeffery Paul · 1976 ·

   Resumen

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