» Phylum Arthropoda (Arthropods)
Common Name
This is page 12 of specimens of Arthropoda. Visit the main Arthropoda page for:
- The behavior and habitat of Arthropoda.
- 122 underwater pictures of Arthropoda.
Pictures of 1244 Arthropod Specimens:
Male Baetidae (Blue-Winged Olives) Mayfly Nymph
View 10 PicturesThis male nymph is probably in its final instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.). The wing pads (
The wing pads on this final instar
Baetidae mayfly nymph are extremely dark.
Wing pad: A protrusion from the thorax of an insect nymph which holds the developing wings. Black wing pads usually indicate that the nymph is nearly ready to emerge into an adult.) are extremely black and the large turbinate (
This male
Baetidae dun has slightly turbinate eyes.
Turbinate: Shaped like a top or elevated on a stalk; usually refers to the eyes of some adult male Baetidae mayflies which are wider near the tip than at the base.) eyes are very apparent inside the nymph's head. Ranatra Water Scorpion Adult
View 7 PicturesHere's a big water scorpion (no relation to actual scorpions). These guys are just about the most sinister-looking creatures you could find, and what's especially creepy is that they can come up out of the water and fly around, as I learned when one left my aquarium and buzzed my head while I was peeking into the microscope at a mayfly nymph.