PRESIDENTIAL ADDRESS 120 



the country and studying its fauna; many errors will be 

 rectitied and many valuable observations made both as 

 regards the biology and ontogeny of species. I think that 

 his Avork on the anatomy, development and biology of 

 termites surpasses anything that has been written on S. 

 African white ants and perhaps many other groups of 

 insects. 



The Odonata in S. Africa, and the Xeuroptera as well, 

 have not been studied as much as they deserve. So far 

 no special work on this well represented group has been 

 published, although a classification has been given by 

 Selys-Longchamps. A few jears ago Mr. S. G. Kich, of 

 Natal, commenced the study of the group. It is hoped 

 he will give a monograph of the Neuroptera at some 

 future date. 



The PJectoptera (mayflies) and Thysanoptera (thrips) 

 are not largely represented. However, as I do not know 

 of anyone in S. Africa w^ho has interested himself in these 

 orders, it is possible that their study may yield a goodly 

 number of new species. 



The Hcmiptera (bugs, froghoppers, coccids, aphids, 

 etc.). It is surprising how little attention the Eemiptera 

 have received from S. African workers in view of the 

 wealth of species and their economic importance. It is 

 estimated that the Hemiptera possibly outnumber even 

 the Lepifloptera. of which about 6,000 species have al- 

 ready been described from this country. W. Distant has 

 done a large amount of work on the Hemiptera-Homop- 

 tera, mainly the Cicadidae^Rud. Schouteden has described 

 and classified a number of Eeteroptera, but these scat- 

 tered papers have still to be brought into a compact form. 

 Certain families have been dealt with or are still being 

 studied by S. African entomologists. Mr. C. K. Brain 

 will always be connected in one's mind with the study of 

 S. African Coccidae. I understand Dr. E. Cogan may 

 work at the Cercopidae, while Dr. Pettey is interesting 

 himself with Psyllidae and Tingitidae. Several important 

 families, however, are still untouched both as regards 



