No. 7.— Two New Genera of Myrmicine Ants from Brazil. 
CONTRIBUTIONS FROM THE ENTOMOLOGICAL LABORATORY OF 
THE BUSSEY INSTITUTION, HARVARD UNIVERSITY. NO. 103. 
By Witut1am Morton WHEELER. 
Mr. C. William Beebe, of the New York Zodlogical Park, recently 
sent me for identification nineteen vials of ants which he collected 
May 15, 1915, in a suburb of Para, at the mouth of the Amazon. 
The specimens were all taken from four square feet of jungle mold 
at the foot of a single tree, whose bird fauna (76 species!) Mr. Beebe 
studied for a week. In addition to the ants he took from the same 
little patch of mold a number of beetles, termites, springtails, bugs, 
pseudoscorpions, ticks, mollusks, and worms. The collection of ants 
comprises seventeen species, two of which are of singular structure 
and evidently represent new genera. The fifteen other species are 
recorded in the following list :— 
Pachycondyla harpax Fabr. One worker. 
Euponera (Trachymesopus) stigma Fabr. Two workers. 
Ponera opaciceps Mayr. Six workers. 
Anochetus mayri Emery. One dedlated female. 
Solenopsis subtilis Emery. Fifteen workers, one male, and one 
dealated female. 
Crematogaster victima F. Smith, var. One dealated female. 
_ Pheidole flavens Roger subsp. exigua Emery. One soldier, three 
workers, three males, and one dedlated female. 
Pheidole subarmata Mayr. Two workers and one dedlated female. 
Trachymyrmez sp. One deilated female, without head. 
Cyphomyrmex rimosus Spin. One dedilated female. 
Rhopalothrix (Octostruma) balzani Emery. Twelve workers and 
one dedlated female. 
Strumigenys subedentata Mayr. One deilated female. 
Prenolepis steinheili Forel. Four workers and three males. 
Rhizomyrma goeldit Forel. Nine workers. 
Camponotus (Myrmothriz) abdominalis Fabr. var. One deilated 
female. 
The solitary deiilated females of the species of Anochetus, Cremato- 
gaster, Trachymyrmex, Cyphomyrmex, and Camponotus were evi- 
