Notes on some flagellate infections found in certain hemiptera in uganda

While carrying out other work at Mpumu, the opportunity has presented itself of examining the Hemiptera from the surrounding country, and some interesting protozoan infections have been found. The group has a certain importance in this connection in that it includes the two parasitic genera, Cirnex and Conorrhynus. Cimex has fallen under suspicion in regard to kala azar, and a species of Conorrhynus is definitely incriminated as the transmitting agent of the South American trypanosomiasis. Certain nonparasitic species, generally belonging to the group of the Reduviidse, occasionally attack man. An instance of this has been reported by Dr. H. L. Duke from the neighbourhood of Mpumu. He has on several occasions been bitten by a hitherto unrecorded species of Henicocephalus. Cases of this kind are also known from other parts of Africa, and from India. It is, therefore, not without interest to obtain some knowledge of the Protozoa infesting Hemiptera generally, and more especially of the flagellates. So far as I am aware none of the species dealt with here are known to attack man or other vertebrates.