1923] Two New Ants from Bolivia 13 
1901 The Pear and Cherry Slug {Eriocampa 
limacina Retz), generally known as Selandria cerasi, 
with Notes on Australian Sawflies. Agric Gazette 
N. S. Wales 1901, pp. 1-11, 4 pis. 
1918 Notes on Australian Sawflies (Ten- 
thredinidse). Proc. Linn. Soc. N. S. Wales 43, 
1918, pp. 668-726. 
TWO NEW ANTS FROM BOLIVIA 
(Results of the Mulford Biological Exploration. — Entomology.) 
By Wm M. Mann. 
BUREAU OF ENTOMOLOGY, U. S. DEI ARTMENT OF AGRICULTURE. 
Among the material collected in Bolivia and so far studied, 
two ants are of especial interest. One belongs to an aberrant 
undescribed genus of “driver ant” (Dorylinse) and the other is a 
Ponerine species very similar to Proholomyrmex filiformis Mayr 
known from workers described in 1901, from Port Elizabeth, 
Cape Colony. The latter is an example of discontinuous dis- 
tribution, such as is frequently found among the Ponerine ant«i. 
but it is the first case in its subfamily of a South African and 
South American relationship. 
Subfamily Dorylinoe 
Leptanilloides gen. nov. 
Worker. — Small, slender, monomorphic. Head elongate, 
subquadrate, anterior portion of front rather strongly impressed. 
Clypeus short. Frontal carinse very short, fused between the 
antennae, separated anteriorly and bordering the antennal fossae. 
Cheeks with a strong carina, which projects forward as a blunt 
tooth. Mandibles with distinct basal and apical portions sep- 
arated by a rounded angle. Eyes absent. Antennae 12-jointed, 
stout, scape short, funiculus moderately thickened distally, 
