STUDIES ON THE INDIVIDUAL SIZE GROUP AND THE LIFE FORM OF GRASSHOPPERS IN TYPICAL STEPPE OF INNER MONGOLIA,CHINA
内蒙古草原蝗虫个体大小及生活型划分的探讨

The life form and the individual size group of grasshoppers in typical steppe of Inner Mongolia were dealt with based on morphometric data(length of body,height of body,width of body,length of tegmen,length of post femur,length of pronotum,length of post tibia,miximum width of head).The results show that 23 species of grasshoppers could be divided into three groups as follows: (1) large size group,only one species,i.e. Haplotropis brunneriana Sauss.(HBS) (2) medium size group,including Pararcyptera microptera meridionalis .(Ikonn)(PMM), Mecostethus grossus (L.)(MGL), Bryodemella tuberculatum dilutum (Stoll)(BTD), Oedaleus asiaticus B Bienko(ODA), Celes skalozubovi (Adel).(CSA), Bry ode mella holdereri holdereri (Krauss)(BHK), Angaracris rhodopa (F. W.)(ARF), A.barabensis (Pall.)(ABP) (3) smallsize group,including Calliptamus abbreviatus (Ikonn).(CAI), Gomphocerus licenti (Chang)(GLC), Chrysacris albovitattus (Li)(CAL), Ch.albomarginatus (De Geer)(CAD), Chorthippus brunneus (Thunb.)(CBT), Eremippus simplex simplex (Ev.)(ESS), Dasyhippus barbipes (F. W.)(DBF), Omocestus haemorrhoidalis haemorrhoidalis (Charp.)(OHH), Ch.dubius (Zub.)(CDZ), Aeropedellus variegatus minutus Mistsh.(AVM), Myrmeleotettix palpalis (Zub.)(MPZ), Ch.fallax (Zub.)(CFZ), Ch.hammastoremi (Mir.)(CHM), Mongolotettix japonicus vittatus (Uv.)(MJV). The life form of grasshoppers from terricoles to planticoles were as follows: Female:HBSBTDBHKSACABP,ARFODAPMMCAIGLCMGLOHHCBTCDZ,DBFCHMESSAVMMPZ,CADCFZMJVCAL. Male:HBSBHKBTDARF,ABPCSAPMMODAGLCCAIMGLAVM,DBFOHHCBTESSCDZ,CHMCADCFZMPZMJV. The results also show that life form connected with individual size.The larger was typical terricoles(eg,HBS),the smaller was typical planticoles(eg,MJV).