432 MAJOR E. E. AUSTEN. 



" They attack very cautiously, approaching their victim from behind, and rarely 

 making for the face. In flight, they somewhat resemble ' Hover-flies,' noiselessly 

 approaching and settling upon the ears, back of the neck, legs, back of the hands, 

 and on the exposed elbows. It is only the severe pain of the bite that attracts the 

 victim's attention, and should the sufferer make the slightest movement, the flies 

 at once effect their escape. 



" The wound made bj^ their bite is very painful, and causes much swelling in 

 many people. A minute bleb forms at the site of the puncture, and if the contents 

 be expressed the irritation usually subsides, though the pain and intense itching may 

 persist for several days. If these wounds become infected, as is frequently the 

 case in children, who are very apt to scratch them, they heal very slowly. 



" This insect is by far the most troublesome biting fly in the Doi Chom Chang 

 region." 



Specimens of Chrysops flavocincta already in the National Collection show that 

 the area of distribution of this species, which is one of the smallest of the Oriental 

 representatives of its genus at present known, includes Ceylon, North-eastern India 

 (Khasi Hills, Assam), and Borneo (Sarawak). 



Tabaninae. 



Genus Haematopota, Mg. 



Haematopota pachycera, Big. 



Haematopota pachycera, Bigot, Nouv. Archiv. Mus. Hist. Nat., Paris (3) ii, 

 p. 206 (1890). 



Haematopota validicornis, Ricardo, Rec. Ind. Mus., iv, p. 333, pi xvii, fig. 23 

 (1911). 



Although this species is not represented in Dr. Barnes's collection, the British 

 Museum (Natural History) possesses a few examples of it from Siam, viz. : 2 $$, 

 precise locahty unknown, vi.l906 {W. Palmer) ; 1 $ (type of H. validicornis, Ric), 

 Biserat, 20.x. 1901, "in spider's web in jungle" {Robinson and Annandale) ; 1 $, 

 Phrapatoon,* 1907 {Dr. P. G. Woolley). In addition to the foregoing, the National 

 Collection contains a $ of //. pachycera from the Federated Malay States {Dr. A. T. 

 Stanton, presented by the Imperial Bureau of Entomology). 



According to the describer of the species, the type of H. pachycera was obtained 

 in the Laos Protectorate, French Indo-China ; Miss Ricardo, however, who examined 

 the specimen in the Paris Museum, states (Ann. Mag. Nat. Hist. (8) i, p. 59 (1908) ) 

 that it is from Cambodia. 



Haematopota cilipes, Big. 



Haematopota cilipes. Bigot, Nouv. Archiv. Mus. Hist. Nat., Paris (3) ii, p. 205 

 (1893). 



According to Bigot {loc. cit., p. 206), the type of this species was collected in 

 "Laos." The specimen itself (which the writer has been enabled to examine 

 through the kindness and courtesy of Baron J. M. R. Surcouf), however, bears labels 

 stating that it was obtained by M. Pavie in 1886, between Chantabun and 

 Battambang, both of which localities are in Southern Siam. H. cilipes, which is not 

 included in Dr. Barnes's collection, is represented in the British Museum (Natural 

 Historv) by a solitary $ from Cambodia, 1909 ( John Surcouf, presented by Baron 

 J. M. R. Surcouf). 



* This place-name is printed here and elsewhere as given on labels attached to the specimens 

 concerned ; extensive search in maps and gazetteers, however, has so far failed to identify this 

 Siamese locality. 



