A NEW GRAIN BEETLE

Mortality Resulting from Interactions Between the Red Flour Beetle and the Rusty Grain Beetle

A New Grain Hardness Tester

.\ hardness tester, especially adapted for grain, was cor~structecl by modifying a commercial portable soft metal tester known as the Barcol Impressor. h preloaded stylus is forced into grain sections preparetl by rneans ot a microtome. The displacement of the stylus, nleasured by a dial micrometer, is used as a hardness index. This has been related to tlie l'ickers tlianlontl pyramid hardness ...

A Novel, Extremely Elongated, and Endocellular Bacterial Symbiont Supports Cuticle Formation of a Grain Pest Beetle

The saw-toothed grain beetle, Oryzaephilus surinamensis (Silvanidae), is a cosmopolitan stored-product pest. Early studies on O. surinamensis in the 1930s described the presence of peculiar bacteriomes harboring endosymbiotic bacteria in the abdomen. Since then, however, the microbiological nature of the symbiont has been elusive. Here we investigated the endosymbiotic system of O. surinamensis...

a new tribe record for the darkling beetle

members of the tribe scaurini billberg, 1820, have been systematically studied by solier (1838), reitter (1914), koch (1935, 1958), peyerimhoff (1948), español (1954, 1960), antoine (1953, 1954), kocher (1958, 1964), reymond (1956 a, 1956 b) and labrique (1992, 1995 a, 1995 b, 1995 c, 2001, 2004, 2006). the tribe is recorded from the mediterranean region, south africa (koch 1958), usa: californ...

A New Representation of Grain Boundary Properties

The energy and mobility of grain boundaries in aluminum are reviewed briefly based on both experimental and simulation work. A novel approach to representation of grain boundary properties is given that emphasizes the interaction between different texture components. The motivation for this work is to explain the development of special textures during recrystallization such as the cube componen...