90 
Psyche 
[September 
to discuss the range and ecological response of texana as 
well as those of huachucana . 
It is impossible to give a concise account of the behavior 
of texana in the field. The species has a wide but discon- 
tinuous distribution in the southern United States. As far 
as can be determined all of the range of texana lies south 
of the 38th parallel and the great majority of it lies south 
of the 36th parallel. At this latitude, and south of it, the 
range extends from the Atlantic seaboard states to Arizona. 
This seems simple enough, but a careful examination of the 
stations in which texana has been taken will show that 
they have remarkably little in common. Thus, texana is 
abundant at sea-level in the neighborhood of Miami, Florida 
(Wheeler, Smith). It has been reported from damp woods 
at an elevation 1800 feet in the Great Smoky Mountains 
of Tennessee (Cole). It occurs in the foot-hills of the Ap- 
palachians in South Carolina (Smith) and northern Ala- 
bama (Creighton). It has been taken at an elevation of 
900 feet on the plains of southern Kansas (Wheeler). It 
inhabits shady ravines in central Texas (Wheeler). It 
has been found on Bright Angel Trail below Indian Garden 
in the Grand Canyon (Wheeler). It is abundant at the 
6000 foot level on sunny slopes in the canyons of mountains 
of southern Arizona (Wheeler, Creighton) - 1 All these 
stations lie south of the 38th parallel, but I fail to see that 
there is any other feature which they share that could be 
cited as a reason why they were selected as nest sites by 
texana. Under such circumstances it appears hopeless to 
attempt a generalization which will cover the behavior of 
texana over its entire range. However the situation is by 
no means difficult if field observations are limited to a 
particular part of the range. For it seems that wherever 
this insect has been found in sufficient numbers to permit 
an adequate view of its behavior, this behavior has been 
surprisingly constant for the area involved. Thus, in the 
Huachuca Mountains the range of texana lies in the lower 
part of the evergreen oak belt which, on the northeastern 
1 A. texana also occurs in the northern part of the Sierra Madre 
Oriental. The writer has recently taken it on Chipingue Mesa (2400'- 
4200') and near Iturbide (2800') Nuevo Leon, Mexico. 
