Adults of Cissites cephalotes, a cleptoparasitic beetle of Japanese carpenter bee (Xylocopa appendiculata circumvolans), emerge from the host nests in late May to mid June in the Kinki District after nearly one year in the pseudopupal and pupal stages. Soon after the emergence, the male beetle takes a peculiar pose (calling pose), in which it places the tip of its mandible on the bark, stands on the fore and mid legs, stretches the abdomen and lifts its hind legs in the air, probably for pheromone release. The female beetle leaves the host nest soon after the emergence and seeks the calling male. It seems rather easy for females to reach the vicinity of the male, but not easy to find the exact place, particularly when the male is no longer in the calling pose. After copulation, the female beetle tries to enter the bee's nest for oviposition and encounters severe resistance by the carpenter bee. If oviposition is successful the female beetle guards the egg mass to keep it from being scraped out by the bee. The male beetle also enters the bee's nest, perhaps for resting, and comes out every morning to call new females. The first instars of Cissites cephalotes disperse by fastening onto hairs of the carpenter bee with their mandibles, and wait for nesting carpenter bees on flowers.

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Nitrogen budget of the stag beetle, Dorcus titanus pilifer, reared on decayed wood chips, was measured by a N/C analyzer. Total nitrogen amount increased 8.3% by rearing the stag beetle larvae. This suggests that fixation of atmospheric nitrogen is caused by rearing them. On the other hand, total carbon amount decreased about 30% irrespective of rearing the larvae.

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The occurrence of the ground beetles was studied by pitfall trapping on a snow field in the alpine zone of Mt. Hakusan in summer, 2001 and 2003. Most species were abundantly collected from mid July to early or mid August, and then decreased abruptly. Two Bembidion species, especially B. fujiyamai, were more abundant near the edge of snow field, whereas Pterostichus honshuensis and Agonum sp. were so at a distance from the edge of snow field. Leptocarabus arboreus was captured rather evenly in the study area.

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The niche segregation among three large dung beetle species, Phelotrupes auratus, P. laevistriatus, and Copris acutidens, was investigated in Nara City. The period of adult emergence in all of the species extended from late April to early November. P. auratus and P. laevistriatus were attracted to fresh dung, while C. acutidens was not. C. acutidens and P. auratus preferred dung to carrion, especially deer dung, but P. laevistriatus preferred carrion to dung. C. acutidens was most active from 16:00 to 4:00, but P. auratus and P. laevistriatus, from 4:00 to 16:00. These findings suggest that competition does not exist between P. laevistriatus and the other species for access to fresh deer dung. On the other hand, competition between C. acutidens and P. auratus is likely to be reduced due to differences in diel activity.

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A website "Guide to the parataxonomist training course: Entomology for beginners" is awarded the Akitsu Prize 2007 by the Entomological Society of Japan. The site contains a basic text of the entomology for general public: 1) what is insect, 2) how to collect insect, 3) how to make an insect specimen, 4) key to insect orders, and 5) summary for each order.

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