52 



from Huni^aiy, Corsica, Cyprus, and Biskra, Algeria. Additional 

 localities given by Brauer show that it extends throughout Central 

 and Southern Europe, and is also found in Asia Minor. 



Tabanas glaucopis, Mg. 



This species, of which the Museum at present possesses no Briti.sh 

 examples, resembles Tabanus broniius, but may be distinguished by 

 the presence of a fairly broad and conspicuous yellow edging to the 

 abdominal segments. The other abdominal markings are also 

 yellower, and a further character for the recognition of the females is 

 afforded by a conspicuous and rather broad median black callus on 

 the front, above the callus between the lower angles of the eyes, with 

 which it is not connected. The head of the male in shape and size is 

 similar to that of the foregoing species ; according to Brauer {loc. cit., 

 p. 199) the facets in the upper three-quarters of the ej'e are about four 

 times larger than those in the lower quarter. The colour of the eyes 

 of the male is described by Brauer as "grey, dark at the margin, green 

 below, with a purple shimmer ; in the lower fourth with three purple 

 bands, the uppermost of which is divided towards its inner extremity." 

 Brauer describes the ej-es of the female as " green, red above towards 

 the vertex and on the lower margin, in the centre with three curved 

 and yellow-bordered purple bands." The length of the male is stated 

 by Brauer as i6'5 mm., that of the female as from 16 to 18 mm. 

 Nine Continental females in the Museum collection vary in length 

 from 135 to 16 mm. 



The geographical range of Tabanus glauco/>!S includes Central and 

 Southern Europe. The Museum possesses specimens from Brittany 

 the South of France, Spain, and the Tyrol. 



