Cross-attraction
Guides
Agriotes pubescens
Pubescent Click Beetle
Agriotes pubescens is a Nearctic click beetle (family Elateridae) native to North America. It commonly co-occurs with Agriotes mancus on farmland in central Canada, where it is frequently collected in surveys targeting invasive Palearctic Agriotes species. Despite its abundance in agricultural settings, its life history and potential economic impact remain poorly studied. The species shares an identical sex pheromone—geranyl octanoate—with the invasive Palearctic species A. lineatus, resulting in cross-attraction between the two species in pheromone-baited traps.
Tetropium cinnamopterum
Eastern Larch Borer
Tetropium cinnamopterum is a native North American cerambycid beetle in the tribe Tetropiini. Adults are distinguished from the closely related T. parvulum by eye shape, scutellar structure, external genitalia, and pronotal puncture number; larvae are distinguished by urogomphi morphology. The species has been recorded from various conifer hosts, with larvae developing in conifer wood. It is transcontinental in Canada and occurs sympatrically with invasive T. fuscum in Atlantic Canada, where cross-attraction to the aggregation pheromone fuscumol may occur. Both sexes respond to (S)-fuscumol synergized by host monoterpenes and ethanol.