ARKIV FÖR ZOOLOGI, 



BAND 12. N:o 17. 



Hemiptera from British East AMca coUected 

 by Prof. E. Lönnberg. 



By 

 E. BERGROTH. 



With 5 Figures in the Text. 

 Communicated October 22th 1919 by Chr. Aurivillius and Y. Sjöstedt. 



The main purpose of Prof. Lönnberg's expedition to 

 British East Africa was to collect vertebrates, and insects 

 were taken only incidentally. Hence the number of Hemi- 

 ptera brought home by the expedition could not be expected 

 to be great, but that so large a percentage, especially of the 

 Homoptera, belongs to hitherto unknown forms is rather sur- 

 prising, considering the paucity of the material and the ex- 

 tensive collections of Hemiptera previously made in the same 

 regions by v. D. Decken, Stuhlmann, Karasek, ICatona, 

 Sjöstedt, Elliot, Neave, and others, collections that, at 

 least in part, hav^e been worked out alreadj^; even the largest 

 Reduviid — at the same time one of the biggest known insects 

 of this family — found by Prof. Lönnberg proved to be unde- 

 scribed. The small coUection as a whole gives evidence of how 

 much has still to be done ere our knowledge of the East- 

 African Hemiptera can be regarded as satisfactory. 



BibHographical references are appended only to the Hete- 

 roptera not included in Lethierry and Severin 's »Cata- 

 logue des Hémiptéres» and my supplements to this work, 

 and to the Homoptera not described in Stål's »Hemiptera 

 Africana». 



Part of the species bear no precise locaUty label. 



Arkiv för zoologi. Band 12. N:o 17. 1 



