Thyridopteryx ephemeraeformis (Haworth, 1803) (Lepidoptera: Psychidae: Oiketicinae)
The bagworm, Thyridopteryx ephemeraeformis, is native species to the United States and is generally found in central and eastern states. Bagworms feed on the foliage of a wide variety of trees and shrubs, but are mostly fed and found on the juniper plant. T. ephemeraeformis (Haworth) is one of common species of two genera under the subfamily Oiketicinae of family Psychidae.
Following link is post about general morphology of the cocoon and the female:
GENERAL MORPHOLOGY OF CASE
As mentioned in the previous post regarding the cocoons and the female, male and female cocoons look same until the emergence. Male cocoon has exuvia projected out of the cocoon, showing it is empty. Live cases are thick while dead or empty cases are usually shrunken in size.
GENERAL APPEARANCE OF MALES
Males are similar to the other moth species except they lack scale on their wings. However, they are very hairy on its body, and hair easily detached when touched.
All the dead males had its aedeagus projected out of its abdomen, however, this is not the case for the alive specimens. It can easily projected out by pinching the abdomen.
ECOLOGY OF MALES
Males are known to emerge a month ahead of females, take some time to be matured, and fly around the female cases upon their (females) emergence during the day until the early evening.
NOTES ON SPREADING/INCREASE OF POPULATED AREAS
This species is known to be a great pest on ornamental trees like juniper. However, as females are flightless, I doubt they can spread out naturally to previously uninfected areas. I only assume humans are involved in their spreading by accidentally planting infected trees in the new habitat.
Created on 8 September 2016.
Updated on 6 September 2017.
Notes on Megalodacne fasciata (Fabricius, 1777) (Coleoptera: Erotylidae: Erotylinae)
The family Erotylidae in the North America consists of 60 species in 2 subfamilies with 11 tribes. The subfamily Erotylinae occurs on fungi or fungus-rotted woods. The larvae of this group are covered with lon scoli and graze the surface of fungi. (Arnett et al. 2002; Bartlett 2004). The species Megalodacne fasicata that is studied is found on Ganoderma species of polypore mushrooms on oak tree (Quercus sp.).
Megalodacne fasciata (Fabricius, 1777)
lateral and anterolateral view
It was interesting that alive adults were raising their antennae straight up. Most of the beetles species I’ve been collecting were stretching forward.
Bartlett, A. 2004. Family Erotylidae – Pleasing Fungus Beetles, Taxonomy [Internet]. Iowa State University Entomology. Retrieved on Octoebr 25, 2015 from: http://bugguide.net/node/view/149/tree.
Arnett, R.H., Jr., M.C. Thomas, P.E. Skelly, and J.H. Frank. 2002. American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea, Volume 2. CRC Press, Boca Raton, FL. 880 pp.
Updated on 16 December 2016.