TO THE LUANQWA VALLEY, NORTH-EASTERN RHODESIA. 313 



14. Tahanus sp., near gratus (2 c? c^ )• 



15. T. insignis {I S)- 



16. T. sharpei (I S)- 



17. Tahanus sp. U S S)- 



18. Tahanus sp. (5 S S)- 



It will thus be seen that I have been fortunate enough to obtain the males 

 of all the 18 species collected. 



One, perhaps two, species of Hcematopota have been taken ; the males 

 being in the majority. 



A single species of the genus Chrysops, near, if not identical with C. longi- 

 cornis, was found in one locality. The three specimens taken (females) were 

 all bitino; the shins and ankles of natives. 



Two or more species of Stomoxys were obtained, though the genus is 

 relatively scarce and local in the Luangvva Valley, compared with the high 

 oTound on either side. On two occasions when eland were shot about 

 sunset a relatively very large species, resembling S. nigra except in size, was 

 taken settling upon them. 



Hippohosca maculata was collected on several occasions on the common 

 waterbuck, Cohus elUpsiprymnus^ but only on that species. All the three 

 individuals captured on one antelope seem to belong to a distinct immaculate 

 form, though another antelope in the vicinity had normal specimens in 

 its coat. 



A species of (?) Lipoptena was taken in small numbers on bushbuck and 

 kudu. 



Besides a few mosquitos, Avhich are always scarce in the Luangwa Valley 

 in the dry season, I took one, perhaps two, species of Phlehotomus. I found 

 these widely distributed in the shadier and damper spots over the middle 

 and lower part of the valley. The specimens were mostly taken at nighty 

 and I cannot say I found them very voracious ; in fact I was not conscious 

 of having been bitten at all. 



With regard to biting organisms in the native huts, a floor-maggot is very 

 common in any hut not kept very clean. A number of the adult flies were 

 taken, apparently belonging to the common species Auclimeromyia liiteola. 

 I also captured two individuals of a relatively enormous species which, 

 except in size, closely resembles the last, and which is alleged by the natives 

 to have a similar life-history. 



A species of Clinocoris (Cimex) is ubiquitous, occurring in almost every 

 hut in the country. 



Ornithoc/oros mouhata appears to be nearly absent from the low ground in 

 the Luangwa Valley, though common enough on the high ground on either 

 side. The only place anywhere near the river where I met with this species 

 was in some shelters on the cotton plantations at Hargreaves, occupied by 

 some Angoni natives from the high ground of the Rhodesia-Nyasaland 



BULL. ENT. RES. VOL. I. PART 4, JANUARY I9II, 2 B 



