7.4 Worms (lacioderma - the tobacco beetle)
portions contributed by Rafael Bernardo (rafaelb@csatelite.es)
Common names: Perforador del Tabaco and Gorgojo del Tabaco (Cuba), Carcoma del Tabaco (Puerto Rico), Tobacco Beetle and Herbarium Beetle (USA)
Scientific name: Lasioderma serricorne (Fabricius)
Class: Insect
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Bostrychoidea
Family: Anobiidae
Genre: Lasioderma
Species: L. serricorne
This insect is capable of damaging stored tobacco in both raw material and manufactured product, and can be found in any of its phases: egg, larva, pupa and adult.
Eggs are white colored and about 1/2 mm (1/64") in length. They are laid on tobacco at the warehouse by adult females, and hatch in 6 to 10 days.
The small larvae are grub-shaped and whitish, measuring about 4 mm (1/6") at the end of their development, and are covered by fine, long brown hairs that make them appear "fuzzy"; their heads have yellow-brown markings. They feed 5-10 weeks (depending on temperature), and cause extensive damage to cigars by boring through them. At temperatures below 15-16 degrees C (60 degrees F) the larvae become dormant and get a status of lethargy.
Larvae pupate in the damaged material for 2-3 weeks, remaining inactive during that period of time. The whole life period, from egg to adult, takes about 10 to 12 weeks.
The imago or adult insect is oval, about 3 mm (1/8") long and reddish-brown in color; it has a hard body covered with tiny hairs that give it a golden sheen; its head is bent downward so that the beetle has a distinctive "hump- backed" look. It is a good flier, and can live up to a month.
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