中华稻蝗上唇─唇基区后面的形态学及感受器分布的研究(英文)

研究了中华稻蝗上唇—唇基区后面的形态及感受器分布。参考以前的研究方法及命名并略做修改，将中华稻蝗上唇—唇基区后面分成１２个区域并按照区域的顺序对感受器的类型及分布进行描述。发现：有５种毛簇、３种角质齿、４种感受器；除毛簇Ａ在上唇的右侧延伸较短外，毛簇和角质齿的结构类似于其他蝗虫；在４种感受器中，有两种在其他蝗虫中未见报道。     

美洲大蠊触角无感觉毛感受器的扫描电镜观察

用扫描电镜观察美洲大蠊触角感受器发现无感觉器包括钟形感器和边缘感器两种,钟形感器仅分布于触角柄节和梗节,为凹窝内有一隆起的椭圆形构造;而边缘感器为感窗口催略呈圆形的隆起伏构造,分布于触角鞭节节段末端的边缘,在触角同一面每隔一节均可见一个边缘感器。     

中华稻蝗上唇-唇基区后面的形态学及感受器分布的研究

研究了中华稻蝗土唇－唇基区后面的形态及感受器分布,参考以前的研究方法以命名并略微修改,将中华稻蝗上唇－唇箕区后面分成１２个区域并按照区域的程序对感受器的 分布进行了描述。发现,有５捉毛族、３种角质齿、４种感受器、除放大 上唇的右侧延伸较甜美外,毛簇和角质齿的结构类似于其他蝗虫,在４种感受器中,有两自其他蝗早中未见报道。     

Structure of the ovipositor,associated sensilla and spermathecal system of entomoparasitic pipunculid flies (Diptera Pipunculidae)

The external parts of the female reproductive system in entomoparasitic flies of the family Pipunculidae form a compact, heavily sclerotized ovipositor for inserting the egg into the host. Two types of pipunculid ovipositor have been recognized: The Nephrocerus type is bilaterally asymmetrical and consists of modified abdominal segments 8 and 9. There is no spiracle. The genital opening is situate ventrally, approximately in the middle of the ovipositor. The Pipunculus type ovipositor is bilaterally symmetrical and originates from abdominal segments 7, 8 and 9. A pair of spiracles are located venterolaterally near the basal margin; the genital opening is situated close to the apex. Two types of campaniform and two types of haired sensilla have been found (tergum 9 only). Campaniform sensilla have been observed in apical third to apical half of the ovipositor of all studied species. Ten long haired sensilla arranged in two lateral rows on apex have been recognized only in species of Nephrocerus. Short haired sensilla have been found in all Chalarinae and Pipunculinae, situated in basal half of the ovipositor piercer. The spermathecal system consists of three spermathecae; well sclerotized (Nephrocerinae, Chalarinae) or soft and membraneous (Pipunculinae); and three spermiducts which can be undifferentiated and tubular (Nephrocerus) or differentiated to muscular, glandular and ductal parts (Chalarinae, Pipunculinae). In the Nephrocerus type ovipositor, spermathecae are situated in the distal half of abdominal segment 6; all other Pipunculidae have spermathecae located in the basal part of the ovipositor.     

Temperature-dependent responses to a developmental gradient in theDrosophila wing

Summary The mutant hairy (h) increases the number of sensillae on theDrosophila wing. This allows us to quantify a gradient that determines the type of sense organ that forms along the third long vein. Temperature significantly shifts the positional responses to this underlying gradient.This research was supported by National Science Foundation grant BSR-8300025. We thank Laura Karcher for the figure.