2. TABANUS 371 



" shire and vicinity of Jardine Hall, Dumfriesshire, Sir William Jardine, 

 " Bart." may be correct ; Stephens recorded it as occurring near London, 

 and Walker says " G-enerally distributed (E. S.)," but both records are 

 probably incorrect. It is said to occur from Lapland to Middle Europe. 



Synmiymy. — Schiner apparently mixed up T. luridus with T. tropicus, and Loew's 

 T. luridus is also mainly founded upon T. tropicus. Six females in Bigot's collection 

 under the label of 2\ luridus were in my opinion three T. tropicus and three 

 T. solstltialis. 



5. T. distinguendus Verrall. Tibi£e mainly tawny. Abdomen very 

 extensively bright brownish orange even to the fourth segment in both 

 sexes. Eyes of the male with rather large front facets which are not very 

 abruptly contrasted with the smaller facets, and with dense short brownish 

 pubescence. 



A rather large species, with the abdomen very extensively 

 bright brownish orange except for the narrow black dorsal 

 line and tip ; exceedingly closely allied to the next species. 



S . Head rather large ; frons greyish white, glistening when seen from above but 

 blackish brown when seen from below ; face ashy grey with broad dark grey 

 side-cheeks, and with an indefinite jDaler grey eyemargin extending from the 

 antennae down the sides of the face right round until half-way up the back of 

 the head ; the dark grey cheeks beset with rather dense and rather long 

 (though less conspicuous than in T. tropicus) black hairs (bleached at their 

 tips) which extend right round beneath the eyes but become rather shorter 

 and stiffer as they approach the lower part of tiie back of the head ; just the 

 inner sides of the cheeks with pale greyish yellow hairs which overhang the 

 sunken bare epistoma ; mouthmargin rather narrowly and the back of 

 the mouth wholly and extensively clothed with longer shaggier yellowish gi-ey 

 hairs, which extend up quite at the back of the head and mingle with the 

 similar pubescence on the prothorax, but the holiowed-out back of the head 

 bears some shorter thin greyish hairs ; in profile the frons and face scarcely 

 produced, but the jowls more distinctly so, and the part beneath the back of 

 the eyes and up the lower thii'd of the back of the head only very slightly 

 puffed out, while the upper two-thirds of the back of the head are hollowed 

 out behind the eyes ; the lower third of the back of the head bears a very 

 short almost imperceptible black postocular ciliation, but above that a rather 

 close more erect pale postocular ciliation can be seen which is still very short 

 for the middle third, but which grows slightly longer though still short about 

 the top third, nor does it become perceptibly longer behind the vertex except 

 for a slight fringe at the actual corner of the eye, but there are a few (two to 

 six) rather longer blackish hairs behind the ocelli which bend slightly 

 forward ; vertical space small, distinctly elevated, shining chestnut ; frons 

 (juite bare, grey but when viewed from in front with large obscure splashes 

 about the angles of the eyes and with a slight darkening between the antenna? 

 and the eyes. Palpi (fig. 227) with the end-joint broadly oval, not twice 

 as long as broad, ending bluntly or in an inconspicuous point on which 

 is sometimes a slight clump of short black bristles though more commonly 

 these bristles merge into those near ; this end-joint may be all blackish grey 

 except for the obscurely orange tip and inner side, or may be dull orange 

 with a slight blackish grey tinge on about the basal half and with a whitish 

 grey tinge beneath ; sometimes the pubescence may be almost all pale, though 

 more commonly the rather short and rather numerous hairs on the middle 

 part and up to the tip are black, but with a longer pale yellow fringe all 

 along the lower side and with numerous longer pale yellow hairs about the 

 upper side and base, though the hairs near the base are not so long as those 

 on the upper side ; basal joint of the palpi blackish grey, and clothed with 



