以掃描式及穿透式電子顯微鏡法研究基徵草蛉複眼之微細構造。複眼位於頭的兩側，每個複眼約有600個小眼，雌雄沒有差異。小眼整個長約100m。每個小眼包含一個晶體，一個圓錐體和八個網膜細胞。在晶體表面覆蓋有小的角膜乳突，2～3個晶體小面之間有小面間毛，四個圓錐細胞包圍圓錐體，兩個主要色素細胞圍繞在外。每個小眼外圍有十二個附屬色素細胞。第七個網膜細胞的桿小體首先出現在圓錐體的下方，第八個網膜細胞的桿小體覆蓋在桿狀體之上，桿狀體內沒有腔，是屬於癒合性小眼。八個網膜細胞延伸至基底膜形成軸突。
以不同的單色光及光強度刺激基徵草蛉的複眼，觀察其網膜電圖(ERG)反應的變化。昆蟲經過30分鐘的暗適應後，以300nm至700nm每隔10nm波長的光波刺激右複眼前額區域；每隔6秒鐘刺激一次，每次刺激時間是300msec，經4次之反應平均加算後記錄其ERG。ERG為雙相波。計算所得之光譜感光曲線在350nm處有最大吸光處(max＝350nm)，此與Dartnall 350nm之標準色素曲線極為吻合。複眼以350nm的光波適應一小時後，其max有明顯的被抑制，但其他部份未有變化。
以四分區域劃分在複眼，試驗其max，發現四區域之max亦為350nm。

The morphology of the compound eye of the green lacewing, Mallada basalis (Walker) was investigated by scanning and transmission electron microscopy. The optical superposition eye is composed of about 600 ommatidia that are identical in both sexes. The length of an ommatidium is approximately 100 m. Each ommatidium contains a lens covered with small corneal nipples, four cone cells forming a crystalline cone and tract, two principal pigment cells that encompass the crystalline cone, and eight retinula cells (numbers 1-8). Each ommatidium is surrounded by twelve accessory pigment cells, some of which are located in the center of a triangle formed by three adjacent ommatidia. Thus, accessory pigment cells belong to part of three different ommatidia. The proximal part of the ommatidium is tightly enclosed by the tracheae. In dark adaptation, seven retinula cells (numbers 1-7) are arranged in a circle at the tip of the crystalline tract. The rhabdomere of retinula cell number 7 lies at the proximal end of the crystalline tract, and number 8 lies at the distal end of the rhabdom column. All eight retinula cells penetrate the basement membrane and continue as eight axons. Each ommatidium shows the fused-type rhabdom that is of great advantage to spectral sensitivity.
The characteristics of the compound eye of the green lacewing were investigated by recording the electroretinograms (ERG) to the illumination of various monochromatic light intensities. The frontal region of the right compound eye was stimulated by a flashing light, ranging from 300 nm to 700 nm, with an interval of 6 sec after 30-min adaptation in a dark environment. The ERG observed shows a biphasical deflection. The spectral sensitivity curve computed by the ERG response displays a peak activity at UV light (max 350 nm). This peak activity was substantially suppressed after adaptation in a conditioned light environment (350 nm) for one hour. These results suggest that the compound eye of M. basalis is very sensitive to UV light.
After the surface of the right compound eye were quartered, the spectral sensitivities were investigated. The max of each region was 350nm.

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