Subterranean
Termites
Dampwood Termites/
Characteristics
Native
Formosan
Drywood Termites
Carpenter Ants
Food
Wood used for
Food
Food
Food
Shelter
Moisture source
Soil or other
Soil or other
No soil or moisture Damp or decayed wood
Damp or decayed wood
or other conditions consistent supply
consistent supply
supply required
required; soil or
preferred; will extend
of moisture
of moisture
moisture supply not
to dry, sound wood
required
required
required
Damage
Shelter tubes
Shelter tubes
Piles of fecal
Damage in sound wood
Galleries follow
characterization
present;earlyood
present;earlywood
is similar to sub-
pellets eliminated
earlywood but will
preferred; with
preferred; with
terranean damage. In
cut through latewood;
from kickholes in
pale, spotted
pale, spotted
wood; infested wood
decayed wood,
gallery walls smooth
appearance like
appearance like
and perfectly clean;
with very thin
galleries are larger
dried oatmeal on
dried oatmeal on
and pass through both
"windows" or slit-like
surface; broad
gallery walls
gallery walls
pockets with no
earlywood and late-
openings sometimes
regard for early-
wood; gallery walls
present on wood surface;
with velvety appear-
sawdust-like frass
wood or latewood;
ance; some with dried
and other debris
galleries smooth
Insect description
present below windows
without deposits
fecal material
Swarmers
Size
1/3 - 1/2 inch
Up to 5.18 inch
Up to 1 inch
Up to 3/4 inch
1/2 - 5/8 inch
Color
Light tan to
Slightly larger and Yellowish brown
Predominately black
Yellow brown,
black
to dark brown
some reddish-brown
larger than native
lighter in color
to yellowish
subterranean
than subterranean
Wings
Two pair, unequal
Like subterranean
Four equal sized;
Several distinct
Veins predominately
size
two prominent
but with hairy
longitudinal veins
on front edge of
wings
longitudinal
with many cross
wings, more
veins et front
veins
numerous then
edge
subterranean
Soldiers
Oblong,
Very large, dark,
Oval-shaped head,
rectangular head
exuded whitish,
rectangular head
with large jaws
sticky substance
Very narrow, constricted
waist
Not constricted
Not constricted
Not constricted
Not constricted
Other
Present in areas
Will attack small
of TX, LA, SC and
wooden articles such
probably other
as furniture
southern coastal
states; places
carton in walls
1/ Dampwood termites vary depending on species. This description is given for the Pacific coast species. the only one
of economic importance.
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