|Inside the egg... lots of invertebrate action.|
|Pupae, pupal cases and adults of a psychodid fly.|
|There are two veins (dashed lines) between the two main forks in the wing veins (circled).|
|The arrow indicates the eye-bar - an extension of the eye above the antenna. The circle indicates the pale haltere mentioned earlier - yes, these realy are flies!|
|The key asks whether the antennal segments are barrel-shaped or have an elongated stalk. These look barrel-shaped but...|
|...if you remove a segment you can see that the barrel-shape in this case is formed of hairs that hide the real shape - the dark segment clearly has a stalk.|
|Psychoda - three pupae (complete with a pair of pupal horns for breathing) and a larva.|
Smith, K.G.V. (1989). An Introduction to the Immature Stages of British Flies. Handbooks for the Identification of British Insects 10(14): 1-280.
Withers, P. (1989). Moth Flies. Diptera: Psychodiae. Dipterists Digest 4: 1-83.