1959] 
Brown — Ant genus Strumigenys 
47 
guez, Puerto Rico (M. R. Smith leg.). Petit Goave and Fond 
Verrettes-Refuge, Haiti (H. B. Mills leg.). Jamaica: Spanish Town, 
St. Catherine Parish; Mt. Diablo, St. Ann Parish; Black River, St. 
Elizabeth Parish; Heron’s Hill, Manchester Parish (all Mills leg.). 
Soledad, Las Villas Prov., and San Vicente, Pinar del Rio Prov., 
Cuba (E. O. Wilson leg.). Florida, U. S. A.: Fisher’s Island (J. E. 
Porter leg.). Archbold Biological Station, Highlands County (H. 
S. Dybas leg.). Mexico: Palmillas, Tabasco (F. Bonet leg.). Chi- 
chen Itza, Yucatan (L. J. Stannard leg.). 
Biology: Weber found specimens in a compost heap in the Botani- 
cal Garden at Roseau, Dominica, and in an island of vegetation grow- 
ing in the Pitch Lake of Trinidad ; also on Trinidad, he took a sample 
from low-growing epiphytes in second-growth forest. Kempf sifted 
specimens from humus in Sao Paulo. Indications are that this species 
can stand more dryness than many dacetines, and its presence in many 
culture areas suggests that it is spreading rapidly through nursery 
stock transport and other human commerce. The Floridian records 
for both this species and gundlachi are the first for the continental 
United States. 
Strumigenys denticulata Mayr 
(Figure 3) 
Strumigenys denticulata Mayr, 1887 : 576, worker. Type loc. : Blumenau, S. 
Catarina State, Brazil. Types in Naturhistorisches Museum, Vienna, and 
in MCZ; two workers examined. Emery, 1890: pi. 7, fig. 8, worker. 
Worker: TL 1.8-2. 2, HL 0.42-0.48, ML 0.31-0.39, WL 0.42- 
0.49 mm. Cl 77-80, MI 74-83. Similar to gundlachi and eggersi, 
but more slender, and with very long, slender, slightly bowed man- 
dibles, each bearing 5-9 denticles along the distal half or more of 
their inner borders. The antennae are also proportionately long and 
slender. Spongiform appendages obsolete, like those of eggersi. Sculp- 
ture as in eggersi, except that the gaster is predominantly smooth and 
shining, with only a weak basal shagreened band. Color yellowish- 
ferruginous to medium ferruginous. 
Female with stronger and more extensive reticulation on gaster, 
covering nearly the entire dorsum of the first segment. 
Distribution: Known from widely scattered localities in South 
America, reaching from northern Argentina to the Guianas and 
Trinidad. It probably ranges through much of central Brazil, whence 
no collections of ants are available from Berlese samples. 
Localities for material examined: Argentina: Ing. Juarez, Formosa 
Prov. (N. Kusnezov leg.). Brazil: Blumenau, S. Catarina State 
