Distribution and habitat preferences of Galápagos ants (Hymenoptera: Formicidae)
Author
Herrera Léon Baert Wouter Dekoninck, Henri W.
Author
Causton, Charlotte E.
Author
Sevilla, Christian R.
Author
Pozo, Paola
Author
Hendrickx, Frederik
text
Belgian Journal of Entomology
2020
93
1
60
journal article
302430
10.5281/zenodo.13710313
83b9d93e-6482-4509-82e7-d477e479612b
2295-0214
13710313
2612CE09-F7FF-45CD-B52E-99F04DC2AA56
Trichomyrmex destructor
(Jerdon, 1851)
Destructive Trailing Ant (
DEYRUP
et al.,
2000
)
(ANTWEB: CASENT0173269). (
Map 41
)
A cosmopolitan species and a tramp ant (
WILSON
&
TAYLOR
, 1967;
ESPADALER
, 2005
;
WETTERER
, 2015). This invasive ant was recorded for the first time in 1998 on Floreana (
PEZZATTI
et al.,
1998
), however, studies of museum material showed it was already collected in 1992 from Baltra.
Trichomyrmex destructor
is a scavenger species found in dry and humid areas and distributed on four islands of the archipelago. It is abundant in the disturbed places of Baltra as well as in the urban zone and surrounding area in Floreana (
PEZZATTI
et al.,
1998
;
VON
AESCH
&
CHERIX
2005
;
HERRERA
&
CAUSTON
, 2010
). Workers have been observed feeding on insects, birds and dead animals in the arid zone of Baltra Island. Nests can be found under rocks where long columns of workers transport the food.
Trichomyrmex destructor
was observed attending
Ceroplastes
spp.
, and aphids on plants of
Sida ciliaris
L. On Baltra
it was observed monopolizing honeydew produced by
I. purchasi
and displacing other introduced ants like
P. longiconris
and
T. melanocephalum
from branches of
Acacia insulae
–iacobi
Riley and
P. aculeata
.
Recently,
T. destructor
was collected from the humid agricultural area of
Isabela
in leaf–litter under trees of
I. edulis
, and on Floreana in crops of
A. comosus
and
M. esculenta
.
Trichomyrmex destructor
is considered a pest in tropical and subtropical areas of the old world (
WETTERER
, 2009b
), and is considered a threat for the insect fauna of the
Galápagos Islands
(
VON
AESCH
&
CHERIX
2005
;
CAUSTON
et al.,
2006
,
HERRERA
&
CAUSTON
, 2010
).