@article {47713,
	title = {Sound production and cannibalism in larvae of the pine-sawyer beetle Monochamus sutor L.(Coleoptera: Cerambycidae)},
	journal = {Entomologisk Tidskrift},
	volume = {117},
	year = {1996},
	pages = {29{\textendash}33},
	abstract = {<p>One-year old larvae of the pine-sawyer beetle, Monochamus sutor L. (Coleoptera: Ceram\&shy; bycidae), produced regular, chirping sounds, easily heard up to 10 meters away. Larvae were positioned within their hibernation tunnel in sapwood of recently fire-killed spruce and pine trees. Their heads were directed outwards, and the sound was probably produced by the scratching of their mandibles against the bark. Since the larvae produce this sound in spite of the risk of attracting parasites and predators such as wood-peckers, this behaviour most likely has an adaptive value. We suggest that sound production helps a larva to secure resources around its hibernation tunnel for its own development by keeping away other potentially competitive larvae. That the larvae are cannibalistic was demonstrated during a trial perfor\&shy; med in petri dishes filled with sawdust. Any larva ignoring the sound signal could therefore face a real threat of being killed.</p>
},
	author = {Victorsson, Jonas and Wikars, Lars-Ove}
}
@article {47711,
	title = {Stridulatory Apparatus and Analysis of the Acoustics of Four Species of the Subfamily Lamiinae (Coleoptera: Cerambycidae)},
	journal = {Annals of the Entomological Society of America},
	volume = {65},
	year = {1972},
	month = {Mar-05-1973},
	pages = {644 - 647},
	abstract = {<p>Investigation of 4 species of the subfamily Lamiinae\&mdash;Tylocerina nodosus (F.), Neacanthocinus obsoletus (Olivier), Monochamus titillator (F.), and Plectrodera scalator (F.)\&mdash;shows that both sexes of each species produce a stridulatory sound when disturbed. The stridulatory apparatus of each species consists of a plectral ridge on the inner surface of the posterior margin of the pronotum and a pars stridens on the dorsal surface of the mesocutellum of the mesothorax. Scanning electron micrographs show the plectral ridges to be smooth, while the pars stridens consists of regularly spaced striae with height, width, and spacing measurements characteristic for each species. Audiospectrographic analysis of the beetle-produced sounds reveals definite frequency bands, pulse lengths, and relative intensities for each species. Investigation of behavioral aspects of the sounds indicates that they are not a necessary component of courtship and mating behavior, but they may serve as an alarm signal.</p>
},
	issn = {0013-8746},
	doi = {10.1093/aesa/65.3.644},
	url = {https://academic.oup.com/aesa/article-lookup/doi/10.1093/aesa/65.3.644https://academic.oup.com/aesa/article/65/3/644/30148/Stridulatory-Apparatus-and-Analysis-of-the},
	author = {Finn, W. E. and Mastro, V. C. and Payne, T. L.}
}
