Wednesday, December 12, 2007
D0468

Beetle-Bits 101: Imaging Staphyliniformia & Scarabaeiformia for the Beetle Tree of Life project

Margaret K. Thayer, mthayer@fieldmuseum.org and José-Cristian Martínez, cmartinez@fieldmuseum.org. Field Museum of Natural History, 1400 South Lake Shore Drive, Field Museum of Natural History, Chicago, IL

The Staphyliniformia TWiG (Taxonomic Working Group) of the multi-investigator, multi-institutional project BToL (Assembling the Beetle Tree of Life) is producing images of whole-body habitus and structural features of adults and larvae for 32 exemplar taxa in the series Staphyliniformia and 16 in Scarabaeiformia. The images are 65 standard views chosen by all participants in the project to document the 600+ morphological characters of adults and larvae that will be combined with DNA sequence data for the core phylogenetic analyses of the entire order Coleoptera. Our images are taken primarily with a Microptics ML Macro XLT digital imaging system, but some of smaller specimens require either a compound microscope and digital camera or a scanning electron microscope. Most final images are composites of a series of images taken in multiple focal planes. Imaging specimens 1 to 35 mm long presents a variety of logistical challenges, solutions to some of which we present here.