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Liriomyza
pusilla (Meigen, 1830) Agromyza
pusilla Meigen, 1830. Syst. Beschr. 6: 185 |
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Leaf-miner: An irregular linear mine, which in small leaves can form a secondary blotch. Long, upper-surface corridor, winding through the leaf and frequently crossing itself; in small leaves often a secondary blotch in the end. Frass in short strings and pearl chains. Pupation outside the mine (Bladmineerders van Europa). An irregular gallery, sometimes crossing over, with black frass arranged as elongate very narrow streaks at the sides of the mine (British leafminers). Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall. The larva is described by Dempewolf (2001: 150) and illustrated in Bladmineerders van Europa. Puparium: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples). Orange; posterior spiracles each with 3 bulbs. Hosts in Great Britain and Ireland:
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