250 
Psyche 
[Vol. 90 
1950’s are presented here, together with a few notes on variation, on 
bionomics, and on the distribution of certain species. Figures of 
some old species are included with those of the new ones. 
Collections and Collectors, with Abbreviations 
The main collection used is that of the Museum of Comparative 
Zoology at Harvard University, Cambridge, Massachusetts (MCZ), 
for Myopias based mainly on collections by Eric Mjoberg, Edward 
O. Wilson, James W. Chapman, William L. Brown, Jr. and Philip 
S. Ward. Secondary sources were the British Museum (Natural His- 
tory) in London (BMNH), collected by Barry Bolton and others, 
and the Australian National Insect Collection at Canberra (ANIC), 
collected by Robert W. Taylor and others. For the collectors named 
above, only surnames are cited in the text. Our thanks go to all who 
provided us with specimens. 
The drawings provided here were mostly done during the mid- 
1950’s by Nancy Buffler. Fig. 4 is by James S. Miller. We are also 
grateful for a copy set of Edward Wilson’s wonderful New Guinea 
field notes of 1955, which have yielded most of what we know about 
Myopias bionomics, here published for the first time. 
Measurements and Ratios 
Where series were available, measurements were usually taken on 
the largest and smallest (worker) specimens in each locality-series. 
The measurements and indices are mostly those standard in ant 
taxonomy for the past 30 years. 
TL (total length) axial length of body, including closed mandi- 
bles; summed ML + HL + WL + petiole L + length of 
gaster. 
HL (head length) maximum measurable length of head as seen 
in dorsal full-face view, using the anterior edges of the fron- 
tal lobes as the anterior reference point, and the posterior- 
most point or points of the cranial outline as the posterior 
reference point. 
HW (head width) maximum measurable width of head, not 
including the eyes, as seen in dorsal full-face view. 
Cl (cephalic index) HW X 100/ HL. 
ML (mandibular extension) maximum measurable distance be- 
