46 
Psyche 
[September 
there is no evidence of intergradation between jamaicensis and either 
of these species. 
Strumigenys eggersi Emery 
(Figures 2, 6) 
Strumigenys eggersi Emery, 1890: 69, pi. 7, fig. 9, worker, female. Type 
loc. : St. Thomas, West Indies. Syntypes in Museo Civico di Storia Naturale, 
Genova, and in USNM, several examined. 
Strumigenys (Strumigenys) eggersi, Santschi, 1931: 276 (records from Pinar 
del Rio Prov., Cuba, and key to “varieties.”). 
Worker: TL i. 6-2.0, HL 0.39-0.47, ML 0.22-0.27, WL 0.39- 
0.46 mm. Cl 83-88, MI 56-64. Very similar to S. gundlachi, averag- 
ing a little smaller, with relatively shorter mandibles, although di- 
mensions and proportions of the two species overlap broadly. Mandi- 
bles straight, with weakly convex inner borders, each bearing 4-8 
minute denticles on its distal 1/3 to 1/2. Color yellowish ferrugin- 
ous, lighter than usual for gundlachi. The two chief characters are 
these : 
1. Spongiform appendages of petiole and postpetiole obsolete, the 
lateral postpetiolar lobes represented by a narrow lamellate margin 
(Figure 6). 
2. First gastric tergum superficially reticulate-punctulate and 
opaque in front, becoming indefinitely shagreened and weakly shining 
behind. 
The female differs from the workers in the same way that the 
gundlachi queen differs from its workers. Reticulate sculpture of 
gastric dorsum more distinct and more opaque than in worker. Male 
unknown. 
Distribution : The home range is probably southern Brazil and 
Bolivia, though lack of collections from central and northern Brazil 
prevents us from knowing how far north this species extends. S. 
eggersi is also known from widely scattered localities in the West 
Indies, Florida and southern Mexico, sometimes sympatrically or 
nearly so with S. gundlachi, and it seems likely that it has been in- 
troduced by man at these points. 
Localities for material examined: Bolivia: Espia Rio Bopi (W. M. 
Mann leg.). Brazil: Agudos, S. Paulo State (W. W. Kempf and 
C. Gilbert leg.). Rio de Janeiro (T. Borgmeier leg.). Santa Teresa, 
Espiritu Santo State (O. Conde leg.). West Indies: Trinidad (P. 
B. Whelpley leg.). Pitch Lake and Trinity Hills Forest Reserve, 
Trinidad (N. A. Weber leg.). Roseau, Dominica (Weber leg.). St. 
Thomas (Baron Eggers leg.), syntypes of eggersi, in USNM. Maya- 
