|Copyright: Kiril Todorov (Phoki)
|Date Taken: 2005-07-15|
|Exposure: f/3.0, 30 seconds|
|Details: (Fill) Flash: Yes|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2005-07-18 4:25|
|[Note Guidelines] Photographer's Note|
|scientific name: Nezara viridula (Linnaeus) (Insecta: Hemiptera: Pentatomidae)|
The southern green stink bug is a highly polyphagous feeder, attacking
many important food crops. This species should not be confused with the green
stink bug Nezara hilaris Say.
The southern green stink bug is believed to have originated in Ethiopia. Its
distribution now includes Europe, Asia, Africa and North and South America.
Eggs have been found as early as the second week of April and as late as
December 12th. The eggs are deposited in masses that range from 30 to 130 eggs
per mass. The eggs are firmly glued together and to the substrate. The eggs
are white to light yellow in color and barrel shaped with tops that are flat
with a disc shaped lid. The egg is 1/20 of an inch in length and 1/29 inch
wide. The incubation time for the eggs is five days in the summer and two to
three weeks in early spring and late fall. As incubation continues the eggs turn
pinkish in color.
The nymph hatches from the egg by opening the disc shaped cap. The first instars
aggregate by the empty eggs and do not feed.
The nymphs are light yellowish in color with red eyes and transparent legs and
antennae. The time until the next molt is three days. Feeding begins with the
second instar. The second instar has black legs, head, thorax, and antennae. The
abdomen is red and so are the spaces between the second, third, and fourth
antennal segments. The thorax has a yellow spot on each outer side. The length
of time spent in the second instar is five days. The third and fourth instars
differ from the second in size and an overall greenish color becoming apparent.
Wing pads mark the arrival at
the fifth instar. The stink bug usually spends eight days as a fifth instar
before the final molt to an adult.
The adult is shield-shaped with an overall dull green color. The eyes are
dark red or black. The wings completely cover the abdomen. The males average 12.1 mm in length and
females 13.15 mm in length. Copulation may last a few minutes to a few days.
Females can lay eggs three to four weeks after becoming adults. A
female southern green stink bug could lay as many as 260 eggs over her life
The southern green stink bug can complete its life cycle in 65 to 70 days. The southern green stink bug is known to have up to four
generations per year in warm climates. The southern green stink bug overwinters
as an adult, and hides in the bark of trees, leaf litter, or other locations to
obtain protection from the weather. As spring temperatures begin to warm, the
southern green stink bug moves out of the winter cover and begins feeding and
Author-jason M. Souitier-University of Florida
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|To goc: stink bug||Phoki
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- goc (0)
- [2005-07-20 3:27]
nice note (read "long note") :-)
anyways ... good photo