THE ANTENNAE OF AUCHENORRHYNCHA (HOMOPTERA)

• Main Authors: Hsieh Wen-Chi, 謝文綺
• Other Authors: Yang Chung-Tu
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/88384058887535335555

碩士 === 國立中興大學 === 昆蟲學系 === 83 === The antennae of first to fifth instar nymphs and adult of all available specimens of Coleorrhyncha and Auchenorrhyncha have been examiexamined. The antenna of the common ancestor of Auchenorrhyncha was similar to that of the fifth instar nymph of the present-living Coleorrhyncha. This ground plan of antenna of Auchenorrhyncha consists of three segments, non- polymerized with third segment 2-3 times longer than the second. Inoidea and Cercopoidea, the third antennal segment of first instar nymph is subdivided into 4-7 segments, with the flagellum non-polymerized and third segment continuing to grow. The antenna of first instar nymph of Membracoidea retains the ground plan. Starting with the second instar, other flagellum protrudes from the central portion of third segment（basal segment）and the width of this segment remains unchanged throughout the entire development stages (developmental arrest). The antenna of first instar nymph of Tettigometridae of Fulgoroidea retains the ground plan as in the ancestral state. The second instar nymph has a short projection at inner apical portion of third segment, and this projection is considerably long and the flagellum becomes polymerized in third instar nymph. The flagellum of other members of Fulgoroidea is polymerized from first instar nymph with distinguished third segment and other flagellum protruding from inner apical portion of this segment,the width and length of third segment remain unchanged for nymphs of Fulgoroidea throughout the entire developmentages.The cladogram of Auchenorrhyncha is reconstructed throughout analysis and comparison of these antennal morphological data. It shows the clustering of Coleorrhyncha（（Cicadoidea ─ Cercopoidea）─ (Membracoide ─ Fulgoroidea））in order.