1900.] TvsncTS .vxn ahachxids from somaliland. 9 



nearlv the same region as that in which Mr. Peel's specimens were 



found. Capt. Swayne also captured a single specimen of another 

 species of Pcmgonia (too much damaged for determination), and 

 three examples of a small Tabanid, somewhat resembling a Hoemato- 

 pota in form, but with clear wings ; as the latter specimens are 

 headless, it is impossible to determine them more precisely. 



The following extract from a letter from Capt. Swayne, sent along 

 with the flies to Dr. P. L. Sclater, is interesting as showing the 

 apparent effect of the bites of these flies upon domestic animals. It 

 is possible, however, that the real offender in these cases is either 

 ' ina longipennis, Corti (the Somaliland Tsetse-fly), or else a 

 species of Stomoxys, which abounds all over E. Africa. The latter 

 species was found by Dr. J. "W. Gregory to kill his camels on the 

 Tana River, and was discovered by Capt. A. Gc. Haslam, A.Y.D., 

 to carry the Trypanosoma of Tsetse-fly disease. Since Stomo-vys is 

 a flv of small size, while Glossina longipennis is in shape not unlike 

 a Hcematopota, the true culprits may escape notice, the effects of 

 their bites being attributed to the Tabanidae. In the extract from 

 Capt. Swayne's letter the Pangonia are called " Doog," and the 

 small Tabanid " Balaad." Capt. Swayne writes as follows : — 



" 1 send you three specimens of 'Doog' (a large fly) and three 



specimens of 'Balaad' (a small fly) I was very 



much pestered by 'Doog' on my way through Ojaden to the 

 Webbe Shabeyli in Somaliland. They swarmed on my camels, 

 constantly drawing blood. The other fly, 'Balaad,* which looks 

 not unlike the common house-fly, is far the worst fly on the 

 Webbe; a valuable camel, on which I caught three or four, two 

 months ago, is now dying, and the Somalis say that this is due to 

 the bites of ' Balaad.' If there are many of them they kill horses 

 and camels, and the Somalis w ill not have their live-stock grazing 

 v here ' Doog ' and ' Balaad ' are found." 



Fain. A. an. 1 1> b. 



Subfam. Laimikixk. 



La m vi;a Loew. 



I.wivka voi; w Loew. 



Lamyra vorax t Loew, Ofvers. af K. Vet.-Akad. Forhandl. l v ">7, 

 :'..". (7: id. Dipt.-Fauna SUdafrika's, 111: L860]. 



\ single °, West Somaliland, between April L6 and Aug 7. 



I refer Mr. Peel's specimen t" this species with some 

 hesitation, In length is 15 German lines, instead of II or 12; 

 the pollinose Bpota on the second and third abdominal segments 

 are practically invisible; and there are differences in the length 

 ami coloration <>f the hair on the ventral surface of the abdomen. 

 The specimen, however, is in poor condition, and even should il 

 eventually prove in belong w sp ciee, it is \>»< much 



damaged t< type. 



