1978] Thayer & Newton — Revision of Genus Glypholoma 27 
Abdominal segments are numbered according to their morpho- 
logical origin. (The first segment visible ventrally is therefore the 
third segment.) 
Mean length and width are given for each species, ± one standard 
deviation. 
Preparation of specimens for scanning electron microscope pic- 
tures consisted of clearing heads, mouthparts, and prothoraces in 
hot 1 N potassium hydroxide, critical-point drying all parts except 
elytra, and coating with gold-palladium mixture. Cleared and 
dissected specimens of pustuliferum and rotundulum and of the 
aedeagi of other species were examined under dissecting and 
compound microscopes. 
Drawings were made with the aid of a camera lucida attachment 
on a Leitz binocular dissecting microscope. 
Acknowledgements 
This study probably would not have come about were it not for S. 
B. Peck’s extensive collecting in Chile and his kindly making this 
material available to us; he later generously provided us with a 
multitude of Australian specimens as well. 
Specimens were borrowed from the following institutions (ab- 
breviated in the text as indicated) and we extend our thanks to the 
curators involved for their cooperation in lending specimens. 
CAS California Academy of Sciences, San Francisco, 
California, U.S.A. (D. H. Kavanaugh) 
CNC Canadian National Collection, Ottawa, Ontario, 
Canada (J. M. Campbell) 
MCZ Museum of Comparative Zoology, Harvard Uni- 
versity, Cambridge, Massachusetts, U.S.A. 
NMVM National Museum of Victoria, Melbourne, Victoria, 
Australia (A. Neboiss) 
Specimens are also deposited in the following collections: 
ANIC Australian National Insect Collection, Canberra, 
A.C.T., Australia 
ANMT A. F. Newton, Jr. and M. K. Thayer, Cambridge, 
Massachusetts, U.S.A. 
FMNH Field Museum of Natural History, Chicago, Illinois, 
U.S.A. 
SBP S. B. Peck, Ottawa, Ontario, Canada 
