@article {10609,
	title = {Antiquity and Evolution of Prosternal Horns in Baridine Weevils (Coleoptera: Curculionidae)},
	journal = {Journal of Paleontology},
	volume = {84},
	number = {5},
	year = {2010},
	pages = {918-926},
	abstract = {Among weevils of the subfamily Baridinae (548 extant genera and ca. 9,000 species), unique prosternal horns and associated sheaths have evolved independently multiple times. These structures are utilized in a unique form of male-male aggression in which males push, rather than overturn as in most other horned beetles, their competitor. Herein we report the first fossils of male Baridinae exhibiting such prosternal horns. Two males recovered from the middle Eocene Green River Formation in northwestern Colorado serve to provide a minimum age (at ca. 47 million years old) for both the origin of horns and its associated form of male-male combat in Baridinae.},
	url = {http://www.bioone.org/doi/full/10.1666/09-160.1},
	author = {Davis, S.R. and Engel, M. S}
}
@article {5556,
	title = {Nectarivory in a weevil, Smicronyx squalidus (Coleoptera: Curculionidae: Curculioninae), on Desmanthus (Fabaceae)},
	journal = {Polskie Pismo Entomologiczne},
	volume = {76},
	year = {2009},
	month = {30 September 200},
	pages = {221-224},
	abstract = {The first apparent nectarivorous weevil, Smicronyx squalidus, is documented on Desmanthus illinoensis. Although found feeding from extra-floral nectaries (EFN{\textquoteright}s) located between the petioles of D. illinoensis, it is believed that S. squalidus merely supplements its diet with nectar, due to an apparent lack of mouthpart modifications for a more efficient uptake of fluids. Photographs of the adult S. squalidus, as well as the EFN{\textquoteright}s on D. illinoensis, are provided.},
	keywords = {Smicronyx squalidus},
	url = {http://pte.au.poznan.pl/ppe/PPE1-2007/221-224_Davis.pdf},
	author = {Davis, S.R.}
}
@article {5555,
	title = {Nectarivory in a weevil, Smicronyx squalidus (Coleoptera: Curculionidae: Curculioninae), on Desmanthus (Fabaceae)},
	journal = {Polskie Pismo Entomologiczne},
	volume = {76},
	year = {2009},
	month = {30 September 200},
	pages = {221-224},
	abstract = {The first apparent nectarivorous weevil, Smicronyx squalidus, is documented on Desmanthus illinoensis. Although found feeding from extra-floral nectaries (EFN{\textquoteright}s) located between the petioles of D. illinoensis, it is believed that S. squalidus merely supplements its diet with nectar, due to an apparent lack of mouthpart modifications for a more efficient uptake of fluids. Photographs of the adult S. squalidus, as well as the EFN{\textquoteright}s on D. illinoensis, are provided.},
	url = {http://pte.au.poznan.pl/ppe/PPE1-2007/221-224_Davis.pdf},
	author = {Davis, S.R.}
}
@article {4867,
	title = {Morphology of Baridinae and related groups (Coleoptera, Curculionidae)},
	journal = {Zookeys},
	volume = {10},
	year = {2009},
	pages = {1-136},
	abstract = {Although the phylogenetic classifi cation of Curculionoidea is still in its infant stages, knowledge of the morphology of this large radiation of beetles also is relatively lacking. Few morphological reviews have been done at the family level, and even fewer have examined the subfamily level and below (beyond description of genital morphology). Morphological studies within the subfamily Baridinae are limited and have mostly been restricted to the study of genital morphology, with a few exceptions. Th is study provides a fairly comprehensive, though by no means exhaustive, review of baridine external and internal morphology to aid future studies on the group, particularly in phylogenetics.},
	url = {www.pensoftonline.net/zookeys},
	author = {Davis, S.R.}
}
@article {3634,
	title = {Antiquity and Evolution of Prosternal Horns in Baridine Weevils (Coleoptera: Curculionidae)},
	journal = { Journal of Paleontology},
	volume = {84},
	year = {2010},
	pages = {918-926},
	chapter = {918},
	abstract = {Among weevils of the subfamily Baridinae (548 extant genera and ca. 9,000 species), unique prosternal horns and associated sheaths have evolved independently multiple times. These structures are utilized in a unique form of male-male aggression in which males push, rather than overturn as in most other horned beetles, their
competitor. Herein we report the first fossils of male Baridinae  exhibiting such prosternal horns. Two males recovered from the middle Eocene Green River Formation in northwestern Colorado serve to provide a minimum age (at ca. 47 million years old) for both the origin of horns and its  associated form of male-male combat in Baridinae.},
	doi = {10.1666/09-160.},
	url = {http://www.bioone.org/doi/full/10.1666/09-160.1},
	author = {Davis, S.R. and Engel, M. S}
}
@article {2868,
	title = {Nectarivory in a weevil, Smicronyx squalidus (Coleoptera: Curculionidae: Curculioninae), on Desmanthus (Fabaceae)},
	journal = {Polskie Pismo Entomologiczne},
	volume = {76},
	year = {2009},
	month = {30 September 200},
	pages = {221-224},
	abstract = {The first apparent nectarivorous weevil, Smicronyx squalidus, is documented on Desmanthus illinoensis. Although found feeding from extra-floral nectaries (EFN{\textquoteright}s) located between the petioles of D. illinoensis, it is believed that S. squalidus merely supplements its diet with nectar, due to an apparent lack of mouthpart modifications for a more efficient uptake of fluids. Photographs of the adult S. squalidus, as well as the EFN{\textquoteright}s on D. illinoensis, are provided.},
	url = {http://pte.au.poznan.pl/ppe/PPE1-2007/221-224_Davis.pdf},
	author = {Davis, S.R.}
}
