Identifying Features: The larva does not have a conspiciously
swollen anus as does Stratiomys sp.
Time of Year Found: Spring
Size of Mature Larva: 2cm (Figures a. and
b.) 8mm (Figure c.)
Habitat: Submergent vegetation
Other Information: These can crawl outside of water.
I observed one crawling 5 meters away from the container. In the water
they eat and swim using their mouth brushes. Another species of the
same genus was found (Figure c.) When both species
are disturbed they curl up into a ball (Figure b.)
Figures:
a. Dorsal view of larva
b. Disturbed larva in curled position
c. Dorsal view of larva of another species then
that depicted above.
Stratiomys sp.
Common Name: Soldier Fly
Identifying Features: The presence of a conspicously
swollen anus.
Time of Year Found: Late spring to summer
Size of Mature Larva: 21mm
Habitat: Detritus
Other Information: During the summer they can be
found floating on the surface dead. They also use their mouth hairs
to feed and swim.