TERMITES IX THE CANAL, ZONE AND PANAMA. 17 
These termites were also very abundant on fence posts along the 
same road on July 26. Hardly any posts were without their galleries 
and in many cases had carton nests as well. Soldiers in the main 
were seen and there were no queens. 
Zetek and Molino found Nasutitermes cornigera in a wine palm 
(Acrocomi/i vmlfera) at Ancon Hospital on October 26, 1921. Those 
termites were very abundant throughout the wood of the trunk and 
along the midrib of fronds. Soldiers came out rapidly when the 
trunk was tapped with a piece of wood. Small nestlike structures 
were found sheltered by the pieces of leaves and bark, as also nests at 
the base of leaves; all these were soft and crumbly in texture. 
On November 3, 1921, a nest of Nasutitermes cornigera was found 
in Fiats a-assiuscula at Ancon Hospital, Canal Zone. The nasuti 
were very abundant. 
A termitarium of this species was found in the top of a jobo tree 
{Spondias lutea L.) at Ancon Hospital, Canal Zone, on November 
23, 1921. Galleries, which were fairly straight, were abundant, 
the narrowest one being about three-eighths of an inch wide, the 
largest 2 inches broad by one-half inch thick. The small ones joined 
to form wide ones. In the galleries nasuti or soldiers were very 
abundant and workers very few. This termite has a very pungent, 
disagreeable odor. When the soldiers were grasped or touched 
they emitted a milky fluid from the opening of the frontal gland or 
end of the nasus or beak. In many cases this shot out into space 
as a small droplet, the distance it was propelled in many cases being 
1 foot. It did not seem to have any irritating effect on the skin. 
At Miraflores, on November 29, 1921, Zetek and Molino found a 
termitarium of Nasutitermes cornigera on a tree on a small island 
near the locks. This termitarium was 12 inches by 18 inches in 
dimensions and had numerous galleries along neighboring branches 
(PI. IX, A). Nasuti were very abundant in it. Zetek found it to 
be very hard and difficult to break up, although the machete he 
used was sharp and some impression could be made upon it with 
every cut. At the third blow, however, the machete glanced off and 
just missed badly cutting his foot. 
On February 4, 1922, at Frijoles, Canal Zone, Zetek took an in- 
teresting photograph (PI. IX, F) of a gallery of Nasutitermes 
cornigera on an avocado limb, showing the work of a girdling beetle. 
Trachydares subpilosus Bates. 
A nest of this species in process of construction was found on 
April 1, 1922, in an avocado tree on Taboga Island, Republic of 
Panama. 
From the foregoing it will be seen that Nasutitermes cornigera 
builds its carton nests in a variety of trees and is an injurious ter- 
mite. 
SWARMING. 
Winged adults of Nasutitermes cornigera were collected flying in 
a house in Chitre, Republic of Panama, during the afternoon of 
May 7, 1922, during a heavy rain — the first of the rainy season at 
this locality. 
71724°— 24 2 
