112 



Figure 22. Basal sclerite of i<hisca dorr.estica showing 

 longitudinal r idges (L. R. ) and salivary 

 duct(S.D.) . 



figure 23. Basal sclerite of Ophyra aenescem 

 longitudinal ri dees (l.P . ) . 



'now i r;g 



