( 394 ) 



XIX. Glossina morsitans, Westw. : Some Notes on the 

 Parasitisation of its 'Pupae. By Hereward C. 

 DoLLMAN, F.E.S., Entomologist to the British 

 South Africa Company. 



[Read October 6th, 1915.] 



Plate I.XIV. 



Although as yet my work on this particular subject is 

 incomplete, such results as I have definitely arrived at are 

 perhaps of sufficient importance to be recorded. 



This note concerns a high percentage parasitisation of 

 the pupae of Glossina morsitans by a small species of 

 Mutilla. The latter, from material sent by me to the 

 Keeper of the Insect Department of the British Museum, 

 and submitted by him to Mr. Rowland Turner, F.E.S., has 

 been described as a new species, under the name of Mutilla 

 glossinae, Turner {vide Bull. Entom. Research, v, p. 383, 

 1915). The locality where the work was carried out is 

 the district of Namaula, situated between the Government 

 stations of Namwala and Mwengwa, in proximity to 

 the Kafue River, N.W. Rhodesia. The exact locality 

 of the parasites I hatched out is not easily capable of 

 reference ; this is so because I was encamped some miles 

 from any native village, and away from any river, kopje, 

 or other noticeable geographical feature. The nearest 

 native village was that of Shimukuyela, some six or seven 

 miles away ; the " Namaula district " comprises by no 

 means a large territory, however, and is, for all practical 

 purposes, no doubt sufficient. The pupae of Glossina 

 morsitans were found under, or very closely adjacent to, 

 felled or fallen trees, in such situations as were found so 

 fruitful by Mr. Lloyd in 1913. In my limited experiences 

 of pupa-hunting for tsetse, I was, in this district and at 

 this time, rewarded far more lavishly than has been my 

 good fortune before or since. 



Of the large number of pupae taken (for so very brief 

 a period), some seventy-five per cent, were sifted out 



TRANS. ENT. SOC. LOND. 1915 — PARTS III, IV. (JUNE) 



I 



