棺头蟋属四种蟋蟀音锉形态的比较(直翅目:蟋蟀科)

STRIDULATING FILES OF FOUR SPECIES OF THE GENUS LOXOBLEMMUS (ORTHOPTERA:GRYLLIDAE)

利用扫描电镜观察并描述了直翅目Orthoptera蟋蟀科Gryllidae棺头蟋属Loxoblemmus 4种常见昆虫即石首棺头蟋Loxoblemmusequestris、尖角棺头蟋L .angulatus、哈尼棺头蟋L .haani、多伊棺头蟋L .doenitzi的音锉和音齿形态特征。观察描述中 ,首次使用拐角、音齿分布、音齿左、右端等形态特征 ,并详细地给予了描述 ,为棺头蟋属乃至蟋蟀科种类鉴定提供了新的分类依据。

This paper studied the stridulating files of four species of the genus Loxoblemmus,L. equestris Saussure, 1877,L.angulatus B.-Bienko,1956,L.haani Saussur 1877,L.doenitzi Stein 1881 by using Scanning electron microscope.Differs from the past dorsal view method,we used frontal and lateral view.We also used some new identification characters,such as the angle,margin of tooth,teeth distribution etc.We found that common characters of four species are teeth short ellipse-shaped,the angle large obtuse angle,the margin of teeth arcshaped and file curved.Different individuals of the same species have almost identical file teeth,but different species often have significant difference in their file teeth.The results revealed that the files of crickets could be used as an criterion for the identification.