Observation on the larval heads and sensilla of Diaphania glauculalis by using a scanning electron microscope
Larvae of Diaphania glauculalis were observed by scanning electron microscopy to understand the head morphology and the type,distribution,and quantity of sensilla on the antennae and mouthparts.Observations revealed that the larvae possess oval,hypognathous heads with chewing mouthparts.Six types of sensilla were identified on the larval head,including sensillum trichodeum,sensillum chaeticum,sensillum basiconicum,sensillum styloconicum,sensillum digitifoumium and sensillum placodeum.In addition,one sensillum trichodeum,one sensillum chaeticum,five sensilla basiconica,and one sensillum styloconicum were found on the antennae.Six pairs of sensillum chaeticum were distributed on the labrum,while one sensillum styloconicum and one sensillum chaeticum were distributed on the labial palpus.A pair of sensilla chaetica was observed on the spinneret,while two sensilla trichodea were distributed on the mandible.Three sensilla chaetica,ten sensilla basiconica,two sensilla styloconica,one sensillum digitiformium,and one sensillum placodeum were observed on the maxilla and maxillary palpus.This examination of D.glauculalis larval head ultrastructure offer valuable insights into the function of head sensilla and the larvae's feeding mechanism.
Diaphania glauculalislarval headsensillascanning electron microscopy
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