[R] Amongst insects : all appendages, usually articulated, serving to grasp and ingest food material. Typically, these include the labrum, mandibles, maxillae (with maxillary palpi) and the labium (with labial palpi). This structure, clearly recognizable in little evolved insects, is sometimes greatly modified in, for example Coleoptera (larvae and adults) and lepidopterous larvae. Other examples include Homoptera and Heteroptera with sucking and piercing mouthparts.
* Curculionidae: head and rostrum (INRA)
a: rostrum; b: antenna; c: compound eye.
2: tip of the rostrum (ventral view).
a: mandible; b: maxillary palpus; c: labium and labial palpi.
* Aphid rostrum (Aphidoidea) (INRA)
Rostrum at rest between fore and mid coxae.
a: rostrum; b: antenna (sectionned); c: compound eye; d: fore leg and mid leg.
* Chewing mouthparts (INRA)
a: hypopharynx; b: mandible; c: maxilla, with maxillary palpus; d:labium, with labial palpus.
* Head of a 4630023@Lepidopterous@ larva (caterpillar) (INRA)
a: head capsule; b: ocelli; c: antenna; d: labrum and clypeus; e: mandible (black coloured); f: maxillary palpus; g: labial palpus; h: fili_re (for silk).
HYPPZ on line: Species (scientific names), Pests (common names), Glossary, Crops.