igii.] G. RiCARDO : Revision of the species of Tabaiius. 159 



There are a series of males in the Indian Museum coll. from 

 the base of the Dawna Hills, lyower Burma {Annaiidale), which 

 may possibly prove to be the male of this species ; the abdomen and 

 legs are 5'ellower; all the facets of the eyes almost the same in size. 

 A note is attached to them, viz., " Hovering over cart track in the 

 bright sun." 



Tabanus monotaeniatus, 9 , Bigot. 



Alem. Soc. Zool. France, v, p. 655 (1892). [AiylotMs.'] 



Type ( 2 ) and four others from India (only three specimens 

 are mentioned by Bigot in his description) and one other ( 9 ) from 

 N. Khasi which was placed under his species Tabanus monilifer. 



In Indian Museum coll. three para-t3q)es from India, one of 

 them from Sibsagar, and another from N. Khasi, Assam. In 

 Howlett coll. seven ? from Nangpoh, Assam, '' caught on animal." 

 In Brit. Mus. coll. 9 specimens from Dibia and Sadia, Khasi 

 Hills District ; and N. Khasi Hills, lower ranges (Chennell) ; and 

 Nangpoh, Assam. A blackish brown or reddish brown species, 

 the abdomen with a narrow distinct grey tomentose median stripe 

 reaching to the sixth segment, the sides straight : the thorax blackish 

 with indistinct stripes. Legs blackish, with red tibiae, antennae 

 and palpi. 



Length of the tN^pe 18 mm., other specimens range from 

 14 — igi- mm. 



Face covered with greyish tomentum and with white pubes- 

 cence, a few black hairs on cheeks. Palpi large, reddish orj^ellow, 

 covered with black hairs, the inside bare, ending in rather an obtuse 

 point. Beard white. Antennae reddish, the third joint dusky, and 

 blackish at apex, only red at base, the tooth obtuse, the first joint 

 with grey tomentum and with black pubescence, the second with 

 black pubescence on its outer border. Forehead covered with 

 yellowihh tomentum, with some short black pubescence, verj^ nearly 

 the same width throughout, very slightly narrower anteriorly, quite 

 six times as long as it is wide, the frontal callus club-shaped, the line 

 proceeding from it being thick ; the callus does not reach the ej'-es 

 and is dark brown in colour. Hind part of head with short white 

 pubescence, some black hairs at vertex. Thorax black with yellow- 

 ish brown tomentum and with traces of four indistinct grey stri])es, 

 the shoulders and sides of thorax in some of the specimens reddish 

 brown, the pubescence of dorsum short, black, hairs at sides black. 

 ScuteUum black with grey tomentum and black pubescence ; breast 

 and sides covered with greyish tomentum and with white hairs. 

 Abdomen blackish brown, or reddish brown, with some yellowish 

 brown or greyish tomentum which in some specimens appears as 

 indistinct roundish spots, the dorsum rather thickly covered with 

 short black pubescence, with the exception of the median stripe on 

 which a few white hairs are visible, the hairs on sides of first 

 three segments are black, afterwards white, the segmentations very 

 narrowly lighter; under side blackish brown or reddish brown 



