44 
Psyche 
[March - June 
is quiet and most of the nest entrances are loosely plugged, only the 
occasional pushing up of dirt in some of the nests indicating that dig- 
ging may be in progress. Marked nests were open for two or three 
days, except when they were plugged with loose dirt in the afternoon, 
and one nest was open at least five days. The nests were hard to 
keep track of during the period of observation because of frequent 
rains. By July 27 there were 55 nests in a marked area 4' x 4' and 
there were at least this many active during the rest of the summer. 
Solenopsis ants raided part of the site but there was no sign of social 
or other parasites. 
Individual nests were dug up but none could be excavated com- 
pletely. The holes could be followed down to about 4", where they 
seemed to end in loose dirt ; below some of them, at 5" to 6", a cluster 
of up to ten bruchids, with an egg or larva, indicated where the cell 
must have been. The cells must be of very loose construction. Nesting 
activity and male swarming continued from mid- July well into Sep- 
tember in 1958, gradually diminishing during the latter month. A 
similar schedule has been maintained in the two succeeding years. No 
adults have been seen until July, the normal starting time of the 
summer monsoon season. 
THE TYPE SPECIES OF THE ANT GENUS EURHO- 
PALOTIIRIX . — In our paper, “A world revision of the ant tribe 
Basicerotini,” Studia Entomologica, Petropolis, Brazil, 3: 202, i960, 
we erected a new genus Eurhopalothrix to receive certain species 
formerly placed in Rhopalothrix Mayr, along with some new species. 
Through inadvertance, no type species was cited for the new genus, 
and we therefore here designate Eurhopalothrix bolaui (—Rhopalo- 
thrix holaui Mayr, 1870) as type species of the genus Eurhopalothrix 
Brown and Kempf. — W. L. Brown, Jr., Department of Entomol- 
ogy, Cornell University, Ithaca, N. Y., and W. W. Kempf, o. f. m., 
Sao Paulo, Brazil. 
