2. TABANUS 417 



and Avon valleys), Hampshire (New Forest), Hereford (The Dowards), 

 Worcester (Wyre Forest), Glamorgan (Porthcawl), and Merioneth (Bar- 

 mouth) and from several Scotch localities, the dates ranging from 

 June 12th (Austen gives May 27th) to July 29th. It has been recorded 

 from Central Europe and is common in South Europe along the Medi- 

 terranean to Asia Minor, but northwards it becomes less common though 

 it extends to Finland. 



Synonymy. — Loew and Brauer cleared this up, but previously the North European 

 records have been given under the synonym of T, atricornis Meig. A female in 

 the Hope Museum at Oxford bears two labels, one of "New Forest, July U, 1821," 

 and the other " Tabanus lunidatus 1 '' ; it is a very brown specimen, with only 

 brownish yellow pubescence behind the eyes and with the long and slightly broad 

 abdommal side-spots extending to the hindmargins and thus when viewed side- 

 ways forming a continuous pale line, while tlie hindmargins bear a pale fringe all 

 across ; in fact all the black pubescence is much restricted and appears brownish 

 (bleached X) ; it has very little reddish hue near the basal corners of the abdomen, 

 and the legs are more ochreous even to the base of the tarsi, while the basal veins of 

 the wings are more brownish orange ; it was probably rather immature when caught 

 and in course of time may have bleached. Walker's T. atricornis and T. cordiger 

 cannot belong to this species according to details of his descriptions, especially as he 

 included T. cordiger in his table among the species with hairy eyes. 



17. T. glaucopis Meigen. Eyes three-banded, in the male on the 

 region of small facets. Frontal triangle mainly shining blackish in both 

 sexes. Male with a long postocular ciliation. Female with the upper 

 frontal callus broad and isolated. Abdomen with rather inconspicuous 

 ferruginous side-flecks. 



Easily distinguished by its shining black frontal triangle. 



$. Described from a continental specimen in Kowarz's collection from Asch 

 in Bohemia. 



Head much larger than in the female, being so much more rounded 

 anteriorly that it forms almost a semicircle. Face and side-cheeks forming 

 a small pale ashy grey triangle clothed with dense soft whitish grey fairly 

 long pubescence ; jowls also pale ashy grey, small, and bearing longer and 

 more woolly pubescence Avhich extends all about the sides and back 

 of the mouth, but none of this soft pubescence extends up the back of 

 the head ; the side- cheeks blend softly into the face and jowls, and the jowls 

 blend into the whitish grey back of the head ; back of the head considerably 

 hollowed out, and with practically no postocular rim until close to the 

 upper eye-angles because the eyes bulge over, but mth short yellowish 

 postocular pubescence and a few longer black hairs which are rather curved 

 over the eyes ; vertical space exceedingly small, but with a little curved 

 pale pubescence ; frons shining blackish chestnut with just the tip of 

 the top angle light grey and with a fairly broad pale yellowish (almost 

 whitish) grey line right across in front just above the antennae which merges 

 at the sides into the grey of the side-cheeks. Palpi with the second 

 joint elongate oval, about three times as long as its breadth at the middle, 

 dull pale yellow, and clothed with soft whitish pubescence in which two or 

 three black stronger hairs are intermixed near the tip ; basal joint greyish, 

 long and not dilated. Eyes very large, the front facets being all very much 

 enlarged and strongly contrasted with the small facets on the lower third and 

 on the narrower marginal zone which extends equally right up to the vertical 

 space ; the enlarged facets extend undiminished up to the touching part of 

 the eyes ; the contrasting line of facets begins at about the top of the shining 

 part of the frons and loops clown right across the eyes to the narrow zone, 



2d 



