48 
Psyche 
[September 
( Hetschko leg.), syntypes of denticulata in MCZ. Itapecirica, S. 
Paulo State (Kempf and Santos leg.). Agudos, S. Paulo State (C. 
Gilbert, W. W. Kempf leg.), several series. Belem, Para State (C. 
R. Goncalves). British Guiana: Kartabo Point, and Forest Settle- 
ment on the Mazaruni River (N. A. Weber leg.). Trinidad: Trin- 
ity Hills Forest Reserve (Weber leg.). 
Biology: According to Weber (1952), this species occurs in both 
primary forest and second-growth, in leaf litter or in rotten twigs of 
low epiphytes. Kempf (1958) took it in humus, and Wasmann 
(1915) reports a sample taken in a nest of Anoplotermes in south- 
eastern Brazil. 
Strumigenys subedentata Mayr 
(Figures 7, 9) 
Strumigenys subedentata Mayr, 1887: 570, 575, worker. Type loc.: “St. 
Catharina,” Brazil. Syntypes in Naturhistorisches Museum, Vienna, and 
MCZ, two examined. Emery, 1890: pi. 7, fig. 11, worker. 
Strumigenys tristani Menozzi, 1931, Boll. Lab. Zool. Portici, 25: 273, fig. 8, 
worker. Type loc.: Orijuaco, Costa Rica. Syntypes in MCZ and Coll. 
Consani (Bologna), several examined. New synonymy. 
Strumigenys (s. str.) clavata Weber, 1934: 32, fig. 8, worker. Type loc.: 
Trece Aguas, Alta Vera Paz, Guatemala. Syntypes in MCZ, examined. 
New synonymy. 
Worker: TL 2.0-2. 4, HL 0.48-0.56, ML 0.26-0.30, WL 0.47-0.60 
mm.; Cl 82-86, MI 53-54. Larger and more robust than gundlachi 
and eggersi on the average. Mandibles thick, with distinctly convex 
inner margins; apical fork with a long dorsal and a short ventral 
teeth, plus two minute intercalary denticles. Close to the dorsal api- 
cal tooth is a small preapical tooth or denticle, followed closely 
proximad by 3-5 smaller denticles, confined to about the apical third 
of the inner margin. 
Promesonotum convex, separated from propodeum by a distinct 
metanotal groove ; humeral angles blunt. Propodeal teeth large, slight- 
ly raised, infradental lamellae reduced to carinae. Petiole with long 
peduncle and rounded node, spongiform appendages reduced to a 
cariniform posterodorsal collar. Postpetiole subreniform, distinctly 
wider than petiolar node, but less than half as wide as gaster; its 
spongiform appendages vestigial, approaching the state of those of 
the eggersi worker. Gaster without spongiform appendages. 
Body and appendages densely reticulate-punctulate, opaque; gastric 
dorsum with a more or less distinct superimposed longitudinal stria- 
tion. Underside of gaster, and sometimes also the posterior part of 
the gastric dorsum, with the sculpture more or less effaced and shin- 
ing. 
