1962] 
Brown — Strumigenys 
243 
Wilson and in the artificial nest by Wilson and Brown, and the details 
will be published elsewhere. S. India is a forest species and usually 
nests in rotten branches or twigs lying on the forest floor. The food is 
chiefly entomobryoid Collembola caught alive in the manner usual for 
the genus. 
New records: Mexico: Ridge between Antiguo Morelos and Nue- 
vo Morelos (E. S. Ross leg.). Pueblo Nuevo, near Tetzonapa, Vera- 
cruz (E. O. Wilson leg.). Costa Rica: Abaca Plantation, Bataan (C. 
H. Batchelder). 
Distribution : Southern Mexico to Costa Rica. 
Synonym : S. ludia subsp. tenuis Weber. 
Group of hindenburgi 
24. Strumigenys hindenburgi For el, 1915 (Fig. 8 ) 
Brown, 1961: 61-64, worker, pseudogyne, distribution. 
Distribution : Northern Argentina extending into southeastern Bra- 
zil. 
25. Strumigenys lanuginosa'W\\zz\zr, 1905 (Fig. 4) 
Brown, 1961: 61-63, worker, female, distribution. 
Distribution: Southern Mexico, Panama; Bahamas, where prob- 
ably introduced. 
26. Strumigenys ogloblini Santschi, 1936 
Brown, 1958c: 136-137, fig. lb, worker, female. 
Distribution: Northern Argentina, probably also in southern 
Brazil. 
Group of elongata 
27. Strumigenys precava Brown, 1954 (Fig. 7) 
Brown, 1954a: 196-200, worker, female. 
Biology: I found this species rather common on Barro Colorado 
Island in the Panama Canal Zone, nesting in red- or chocolate-rotten 
logs. One nest found was very large, containing several hundred — - 
perhaps a thousand or more — workers. Workers were seen carrying 
a mycetophilid larva and a termite nymph into this nest as it was being 
opened, and a captive colony fed on a wide variety of small arthropods, 
including entomobryoid collembolans. 
New record: Panama: Cerro Campana, Panama Province, about 
800 m altitude, in a small rotten log in a cloud forest ravine, with 
winged females, Jan. 16, i960 (G. B. Fairchild and W. L. Brown, 
Jr- leg.). 
