dorsomentum

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Abbreviation:

Dm

Definition:

In some mosquito and chironomid larvae, the upper and more distal of the two subdivisions produced when the mentum is completely (in mosquito larvae) or incompletely (in chironomid larvae) divided by a transverse inflection of membrane; probably not strictly homologous between mosquito and chironomid larvae.

Synonyms:

hypostomial lobe, hypostomium, labial plate, mental plate, mental sclerite, mentum, mentum plate, under lip, submental plate, submentum (in part in culicines)
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