30 
Psyche 
[February 
NOTES ON A COLLECTION OF AMBER ANTS. 1 
By F. M. Carpenter. 
In a collection of parasitic hymenoptera from the Baltic 
Amber, now at the Bussey Institution, a number of other insects 
were accidently included, among which were 89 ants. This small 
ant collection is peculiar in that it contains a higher percentage 
of males than has been the case with former material. In such 
collections the workers have far excelled the sexual forms in 
respect to the number of individuals present, but in the collection 
before me the males are almost twice as abundant as the workers. 
The species represented in this material are listed below, together 
with a few notes on their occurrence, and the numbers identifying 
the specimens in the two collections (Museum of the University 
of Konisberg and the Fritsch collection) to which the fossils be- 
long. The species present, except one, were described by Mayr 2 
in his paper, “Die Ameisen des baltischen Bersteins”, and by 
Professor W. M. Wheeler 3 in “The Ants of the Baltic Amber.” 
Myrmicinae 
Erebomyrma antiqua Mayr: Two males in the Univ. Konigs- 
berg collection, both without numbers. These two specimens 
increase the number of observed males of the species to seven. 
Stenamma berendt Mayr : One male, Univ. Konigsberg 
(xxB979j. This is the third specimen of this species that has 
been found. It is curious that the species should be present in 
so small a collection as this, since only two other individuals 
have been seen in the 11678 amber ants that have previously 
been studied. 
Contribution from the Entomological Laboratory of the Bussy Insti- 
tution, Harvard University, No. 274. 
2 Beitrage zur Naturkunde Preussens, hereausgegeben v. d. physik. — ok 
Ges. zu Konigsbreg, 1, 1868. 
3 Sonderabdruck aus den Schriften der Phpsikalisch — ok. Ges. zu Konigs- 
berg, i. Pr., LV. 1914. 
