896 Dr. A. Forel, Formicides 
(18 a). Windward side; sandy bed of the Dry River ; 
open ground, near the sea. Jan. 2nd. A single worker 
found under a stone. Associated with Nos. 34 ¢ and 39. 
(18c). A female referred doubtfully to this species ; 
windward side at Georgetown. Jan. 8rd. Muddy land 
by seashore ; at the mouth of a stream; under a stone. 
6. Solenopsis geminata, Fabr. (No. 48a 448m). % 2 og. 
Espéce cosmopolite des tropiques. 
(48). Common, especially in open places below 1500 ft. 
The communities are large, often ten or twelve thousand 
individuals, I should think. The formicary proper is 
commonly excavated under sod or loose soil, advantage 
being often taken of the shelter afforded by a large 
stone, or by vines, a bush, &c; it is never far below the 
surface. In the centre is a large irregular chamber, or 
several small ones connected by very short passages ; 
this central portion may occupy a space six inches 
square. From it a network of tunnels extends in all 
directions, but always near the surface; connected with 
these there may be other small chambers for larvae, 
food, &c. The longer tunnels may extend for many 
yards, commonly ending under stones, where other 
chambers are constructed ; and to these distant parts of 
the formicarium the larve are often carried. No matter 
how large the community is, there appears to be but one 
gravid female, though several winged females may be 
found. These ants are very pugnacious, especially when 
their central nest is disturbed. The sting is unpleasant, 
but not very painful. The largest-headed workers are 
few in number, and keep to the inner passages of the 
formicarium. The other workers are frequently found 
about houses, on foliage, flowers, &c., and prowling over 
the ground in open places. They seem to live princi- 
pally, if-not entirely, on vegetable matter; they are 
especially fond of sweet substances. I have found con- 
siderable quantities of grass-seeds stored in small cham- 
bers in their nests. In their movements the small- 
headed workers are moderately active; the large-headed 
ones move slowly, and in a staggering way. The females 
are sluggish. 
(48a). Near Wallibou (leeward) ; seashore thickets ; 
