The tropical house gecko is a small lizard, having an average total length of 10–12.7 centimetres (3.9–5.0 in) (including tail)[5] and an average mass of 4.6 grams (0.16 oz). Females are on average somewhat larger than males, with the male average snout-to-vent length (SVL) being 51.56 mm (2.030 in) and the female average SVL being 54.47 mm (2.144 in).[6] Normally coloured in black and brown bands, this gecko can slowly change its colour based on its ambient temperature and lighting; its scales vary in colour from dark brown to light grey. The tropical house gecko bears particularly scaly lamellae on the underside of its toes, enabling it to grip onto vertical surfaces.[6]
As with many gecko species, H. mabouia has the ability to vocalise. Its vocalisations range from quiet peeps to rapid short squeaking sounds. The vocalisations may be heard most easily on a quiet night when sitting near an open window.
Habitat
The tropical house gecko can be found predominantly in urban locations.
Behaviour
The tropical house gecko is mainly nocturnal and a voracious hunter of nocturnal flying and crawling insects. It has learned to wait near outside wall-mounted lighting fixtures so as to catch the insects that are drawn to the light.
Human impact
In some Caribbean cultures it is considered good luck to have a tropical house gecko residing in one's home, and eats household insect pests. However, the faeces of the tropical house gecko are approximately 5 mm (0.20 in) long, 2 mm (0.079 in) wide, and dark brown (almost black) in colour. The gecko will usually confine its faeces to one area of a home, but this can present as a problem to humans if that area of the home happens to include a pale-coloured carpet, drapes, or any other easily stained surface. The stains are not easily removed, and the droppings have to be physically scooped up as well.[9]
Despite actually being harmless, the common house gecko or "wood slave" is considered by some in Trinidad and Tobago to be a bad omen, and to have a poisonous touch. This is an old superstition, and in reality the house gecko is not only harmless, but also beneficial due to its hunting prey including mosquitos and cockroaches.
^"House geckos". Citybugs.tamu.edu. Retrieved 29 March 2022.
Further reading
Boulenger, G.A. (1885). Catalogue of the Lizards in the British Museum (Natural History). Second Edition. Volume I. Geckonidae .... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xii + 436 pp. + Plates I–XXXII. (Hemidactylus mabouia, pp. 122–123).
Duméril, A.M.C., and G. Bibron (1836). Erpétologie Générale ou Histoire Naturelle Complète des Reptiles, Tome troisième. [= General Herpetology or Complete Natural History of the Reptiles, Volume 3 ]. Paris: Librairie Encyclopédique Roret. iv + 517 pp. (Hemidactylus mabouia, pp. 362–363). (in French).
Moreau de Jonnès, [A]. (1818). "Monographie du Mabouia des murailles, ou Gecko Mabouia des Antilles." Bulletin des Sciences par la Société Philomatique de Paris, Series 3, 5: 138–139. ("Gecko Mabouia", new species). (in French)
Schwartz, A., and R. Thomas (1975). A Check-list of West Indian Amphibians and Reptiles. Carnegie Museum of Natural History Special Publication No. 1. Pittsburgh: Carnegie Museum of Natural History. 216 pp. (Hemidactylus mabouia, p. 124).
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