Issue:ISSN 2095-1353
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2012年49 No.6
Morphology，ultrastructure and distribution of sensilla on the cephalicappendages of Myrmeleon ferrugineipennis observedwith a scanning electron microscope
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Key Words：Myrmeleon ferrugineipennis，antenna，maxillary palp，labial palp，sensillum
Abstract：In order to further investigate the feeding mechanism of Myrmeleon ferrugineipennis Bao ＆ Wang，the
morphology，ultrastructure and distribution of sensilla on the antenna and mouthparts of M．ferrugineipennis adults wereobserved with a scanning electron microscope． Ten types of antennal sensilla were observed; sensillum trichodea，sensillum basiconca，sensillum chaetica，sensillum cavity，sensillum ligulate，sensillum disk，sensillum branchia，sensillum auricillica，sensillum campaniformia and Bhm bristles． Of these，sensillum trichodea ( including threesubtypes) were the most common． Sensillum auricillica，sensillum cavity and sensillum campaniformia were only seen onfemales whereas sensillum ligulate and sensillum branchia were only seen on males． The sensillum disk was discovered atthe near end of the flagella of both males and females，but its shape and location differed between the sexes． This is thefirst observation of sensillum branchia and the sensillum disk in this species． The sensillum basiconca were discovered onthe maxillary and labial palps，with more on the labial than on the maxillary palp． Sensillum campaniformia was alsodiscovered on the maxillary palps．