Comparison of a selection of aborted Tsetse fly (Glossina morsitans) larval pregnancies showing range from 1st instar to almost fully developed

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Tsetse fly larvae complete their entire development within the uterus of the adult female fly and are fed on a "milk" secretion provided by the female. If the female is stressed ( if food is in short supply) or environmental conditions are not ideal, the pregnancy may be aborted at any stage in the larval development. This photo illustrates a range of abortions from first instar to almost full grown.

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Size: 5472px × 3648px
Photo credit: © Ray Wilson / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aborted, abortion, african, comparison, development, diptera, fly, glossina, insect, larva, larvae, lobe, morsitans, mutant, polypneustic, pregnancy, pupa, pupae, puparium, sickness, sleeping, tse-tse, tsetse, underdeveloped