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Title: Relative and seasonal abundance of Temnochila chlorodia (Mannerheim) (Coleoptera: Trogossitidae) collected in western pine beetle pheromone-baited traps in northern California

Author: Fettig, Christopher J.; Dabney, Christopher P.;

Date: 2006

Source: Journal of Entomological Science. 41: 75-83

Publication Series: Scientific Journal (JRNL)

Description: Bark beetles (Coleoptera: Scolytidae) are commonly recognized as the most important mortality agent in western coniferous forests. In this study, we describe the abundance of bark beetle predators collected in multiple-funnel traps baited with exo-brevicomin, frontalin and myrcene in northern California during 2003 and 2004. A total of 32,903 Temnochila chlorodia (Mannerheim), 79 Enoclerus lecontei (Wolcott), and 12 E. sphegeus (F.) were collected. The seasonal abundance of E. lecontei and E. sphegeus was not analyzed because too few individuals were collected. In general, T. chlorodia was most abundant in late spring, but a second smaller peak in activity was observed in late summmer. Overall, the ratio of males to females was 0.82. A significant temporal effect was observed in regard to sex ratios with more males collected during later sample periods. Temnochila chlorodia flight activity patterns were similar between years, but activity was generally delayed several weeks in 2003.

Keywords: Dendroctonus brevicomis, Temnochila chlorodia, Enoclerus lecontei, Enoclerus sphegeus, Pinus ponderosa, flight periodicity, seasonal abundance

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Fettig, Christopher J.; Dabney, Christopher P. 2006. Relative and seasonal abundance of Temnochila chlorodia (Mannerheim) (Coleoptera: Trogossitidae) collected in western pine beetle pheromone-baited traps in northern California. Journal of Entomological Science. 41: 75-83.

 


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