@article {1698,
	title = {Nesting ecology of Megachile (Sayapis) mendozana Cockerell and its synonymy with Megachile (Sayapis) santiaguensis Durante (Hymenoptera: Megachilidae)},
	journal = {Zootaxa},
	volume = {3008},
	year = {2011},
	chapter = {63-68},
	keywords = {Leafcutter bees, Megachilini, taxonomy, Trap-nests},
	author = {Torretta, J. P. and Durante, S. P.}
}
@article {1700,
	title = {Chalepogenus roitmani Roig Alsina (Hymenoptera: Apidae: Tapinotaspidini): description of the male and new geographical records for the species},
	journal = {Zootaxa},
	volume = {2797},
	year = {2011},
	chapter = {21-24},
	author = {Torretta, J. P. and Marrero, H. J. and Roig Alsina, A}
}
