54 
Psyche 
[September 
lia. The collection comprises two dozen workers, a female 
and a number of full-grown larvae, which prove to belong 
to an undescribed species of Leptanilla. They therefore 
considerably extend the known geographical range of the 
genus. Owing to the fact that the Leptanillinae are true 
members of Silvestri’s “microgenton” and that their work- 
ers and females are very rarely seen, because they come to 
the surface of the soil only under unusual conditions, such 
as excessive rainfall, it is too early to regard the various 
species at present known as covering the entire range of 
the genus. We should expect careful collecting with the 
Berlese funnel to bring additional forms to light in South 
Africa, Madagascar, Asia Minor and India, or even, per- 
haps, in the warmer parts of the New World. 
Leptanilla swani sp. nov. 
Worker . (Fig. 1, a-d.) Length 1.3-1. 5 mm. Pale yellow; 
legs scarcely paler than the body ; teeth and borders of the 
mandibles reddish. 
Head flattened above, oblong, fully 1 i /2 times as long as 
broad, as broad in front as behind, with subparallel sides, 
rounded posterior corners and feebly concave posterior 
border. Mandibles narrow, with very oblique 4-toothed 
apical borders, the terminal tooth curved and acute, the 
second minute, the two remaining teeth stout and rather 
blunt, the most basal directed at right angles to the apical 
border or even slightly backward. Clypeus without distinct 
posterior suture, its anterior border slightly but distinctly 
produced in the middle as a broadly rounded lobe, excised 
at the sides. Antennse moderately stout; scapes reaching 
nearly to the middle of the head; basal funicular joint 
nearly l 1 /^ times as long as broad, ovoidal, with constricted 
base; joints 2-6 distinctly broader than long; the second 
basally constricted, the seventh distinctly longer, 8-10 as 
broad as long, the terminal joint as long as the two preced- 
ing joints together. Thorax much narrower than the head 
including the mandibles, flattened dorsally and not deeply 
notched in profile at the promesonotal suture; pronotum 
subovoidal, somewhat broader than the mesepinotum, which 
is longer than the pronotum, with feebly rounded, sub- 
parallel sides. Petiole much narrower than the epinotum, 
