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Common darter: Difference between revisions
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== Body Design == | == Body Design == | ||
[[File:Common darter body.jpg|thumb|180px|left|Description]] | [[File:Common darter body.jpg|thumb|180px|left|Description]] | ||
Base on order Odonata. They have three pairs of jointed appendages, exposed mouth parts, an exoskeleton, two pair of wings with many veins and cross veins, one pair of short antennae, abdomen is long and slender, and large compound eyes. The common darter has black legs with yellow streaks, which is separate it from other species. Approximately of the length is 3.8-4.3 centimeters. The gills are located internally. | |||
== Life Cycle == | == Life Cycle == | ||
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== | == Habitat == | ||
They used a wide range of still water including ponds, lakes, pools, calm waters of slow flowing rivers. They also are able to colonies brackish waters. The larvae are often found along the bottom of a water-body or in aquatic vegetation close to the surface. | |||
== Facts == | |||
1. Dragonflies used as medicine in Japan and China and also a food source, eaten as adults or larvae 2. The compound eyes of some dragonflies have up to 28,000 facets 3. Some naiads can shoot their labium and catch prey in only 25 milliseconds 4. Females will mate only with males that hold a territory 5. Most dragonflies’ naiads can move forward by “jet propulsion” 6. The life span is short, some of them are no more than a week or two, but exceptionally are 6-8 weeks. Adults form is most active between mid-morning and mid-afternoon, when the temperatures are up to the highest | |||
== Reproduction == | |||
The larvae sit in water near the margin for several days to get ready for their final molt and starting to breathing. The larvae climb up to find a secure spot. First, they push the thorax, head, legs and wings out of the larval skin then they pause about 30 minutes to let the legs harden enough for the next stage, which is when the abdomen is back out. The wings and abdomen are expanded and start to become solid. After a while, adult will have hardened wings so they could start a flight. | |||
== References == | == References == | ||
