286 



that in Tabanus abbrevialus pale yellowish grey postocular bare rim, 

 which becomes narrower than the upper eye-angle and about the outer 

 eye-angle, there is a short brown ciliation and behind that a longer 

 yellowish fringe is so conspicuous as one may sometimes almost say 

 that the postocular ciliation is long and yellowish with some short 

 brown bristly hairs intermixed. Proboscis dull brownish black, stout 

 about two-thirds as long as the depth of the head ; the stalk comparati- 

 vely short, bearing long erect and rather stout blackish somewhat 

 bristly hairs behind, and the sucker-flaps large and longer than the 

 stalk, furnished with some shorter erect blackish bristly hairs. Palpi 

 pale yellowish similar to those of T. abbreviatus but with rather pointed 

 apex ; basal joint short and cylindrical but slightly thickened apically, 

 covered with some ashy grey tomentum and with long but shorter 

 than that on the jowls pale yellowish grey pubescence which becomes 

 shorter near top where a very few and tiny black bristly hairs exist ; 

 second joint long and slender, wholly three times as long as the first 

 joint, stout about the basal thirds and then gradually narrowed to a 

 point, and about four times as long as the broadest part, the outside 

 obscured by dense tiny black bristles which become sparser before the 

 base and are almost entirely wanting about the base, where there is 

 some fine inconspicuous whitish pubescence. Antennae long and slender, 

 and about as long as the palpi, reddish brown darker towards the apex; 

 basal joint moderately large and long with the upper apical expansion 

 being moderately long and broad, slightly obscured by whitish grey 

 tomentum, and covered with numerous short black pubescence which 

 grows up conspicuously longer about the lower apex ; second joint 

 quite reddish brown but somewhat obscured by whitish grey tomen- 

 tum, smaller, longer than one-third the basal joint, with a long and 

 narrow conspicuous process on the upper apical margin, and with a 

 complete circlet of tiny black bristles about the top ; third joint dull 

 blackish or blackish brown with the base usually reddish, long and 

 rather slender, about three times as long as its broadest part, gradually 



