VOLUME 74, NOVEMBER 2004 285 Blister beetles (Figure) are the source for commercial preparations of cantharidin. Many blister beetle species exist, and many have not been studied extensively. Much of what we know about blister beetles is extrapolated from studies of a few species. In some blister beetles, such as Epicauta funebris, cantharidin has been identified in all 10 life stages and accum...

To compare resistance to small hive beetles (Coleoptera: Nitidulidae) between Russian and commercial Italian honey bees (Hymenoptera: Apidae), the numbers of invading beetles, their population levels through time and small hive beetle reproduction inside the colonies were monitored. We found that the genotype of queens introduced into nucleus colonies had no immediate effect on small hive beetl...

The optical properties of several scarab beetles have been previously studied but few attempts have been made to compare beetles in the same genus. To determine whether there is any relation between specimens of the same genus, we have studied and classified seven species from the Chrysina genus. The polarization properties were analyzed with Mueller-matrix spectroscopic ellipsometry and the st...

background: dung beetles of coleoptera associated to undisturbed cattle droppings in pastures present great diver sity and abundance. dung beetles also play an important role for transmission of some helminthes to human and cat tle. this study was made to survey the biodiversity and abundance of these beetles in ardebil province, western iran. methods: according to the field study all beetles a...

Several studies suggest the possibility that non-native lady beetles may have replaced native lady beetles in some agricultural habitats. There is relatively little information, however, about lady beetle species composition outside of agricultural habitats. Evans (2004) suggested that native species have retreated to nonagricultural habitats in response to the arrival of non-native lady beetle...

Natural habitats surrounding agricultural Þelds provide a source of natural enemies to assist in pest control. The boundaries among landscape elements Þlter some organisms attempting to cross them, resulting in differing communities within the landscape elements. Ground beetles are numerous and generally disperse by walking. These qualities make them excellent organisms for the study of boundar...

1. The relationships between number of species, abundance per species, and body length are examined for 859 species of beetles in samples of arthropods collected from ten Bornean lowland forest trees by insecticide fogging. Similar relationships are examined for different feeding guilds of these beetles, and for those beetles from different species of