72 [March, 1906. 



ON THE BRITISH SPECIES OF HTBROTMA, Dsv. 

 BY PERCY H, GRIMSHAW, F.E.S. 



{Concluded from vol. x\\\, page 11). 



12. — H. TELTTTiNA, Dsv. Male: Eyes hare, contiguous, arista bare, except for 

 a very slight pubescence at the base. Thorax, including shouldei's and pleurae, 

 shining hlacJc. ^J<^ow?en with bluish-grey rather inconspicuous tomentum,and a 

 black dorsal stripe which commences as a broad triangular patch on the 2nd seg- 

 ment, becoming narrow on the next two, and ceasing about the middle of the 

 apical segment. Front femora, with two small inconspicuous and blunt teeth, near 

 base of ventral surface with one very long, one a little shorter, and a row of four 

 still shorter stout bristles, all of which latter are blunt and slightly enlarged at the 

 tip ; frovt tarsi vnth lovg, fine hairs at the apex of each joint (one on each side), 

 1st joint also with one on the middle of the anterior side and several on the 

 posterior side. HuirZ femora long and curved, slightly thicker near the apex ; hind 

 tibix with one subapical dorsal bristle, one fine antero-dorsal about the middle, 

 two postero-dorsal in apical half, and one strong subapical antero-ventral bristle. 

 Wings more or less tinged with yellowish-brown, posterior transverse vein distinctly 

 flexed, last section of 4th longitudinal vein twice as long as the penultimate ; 

 calyptra strongly tinned with oravge; halteres black. Size, 6| mm. 



Female : Frons black, ocellar triangle with grey tomentum, sides of face often 

 with a shining black spot on each side, opposite base of antennae. Thorax shining 

 black. Abdomen blxck, with a slight greyish tomentum, which is only distinct 

 towards the apex. Very like the ? of milifaris, but distinguished by the absence 

 of the anterior bristle on the middle tibiae, while the last section of the 4th longi- 

 tudinal vein is twice as long as the penultimate, and the pre-sutural inner dorso- 

 central bristles of the thorax are more distinct. 



Tbis fine species is evidently extremely rare. I have only seen 

 two males, taken at Ulverston in Jnne, 1897, by the late Dr. Meade, 

 and kindly lent me for examination by Professor Miall. Not having 

 seen a female T am unable to describe the bristles on the legs, while 

 the short description given above is taken from Stein's Monograph. 



13. — H. METEOKTCA, L. Male: Eyes hare, contiguous, arista only slightly 

 thickened, but distinctly pubescent in basal half; face, dark, never tvhitish or 

 silvery. Thorax dull velvety-hlacTc, never highly polished. Abdomen hlackish, 

 with a very slight brownish -grey tomentum, 1st segment and an indistinct tapering 

 dorsal stripe black. Front femora with two conspicuous and very acute teeth of 

 unequal size, the larger one distinctly swollen at base. Middle femora with a row of 

 strong postero-ventral bristles in basal half; middle tihias with two posterior bristles 

 at one-fourth and one-half from apex respectively. Hind femora with a series of 

 about four strong antero-ventral bristles near apex, and a row of about seven fine 

 erect postero-ventral hairs regularly disposed along basal half; hind tlhise with one 

 subapical dorsal bristle, a regular row of fine, short antero-dorsal hairs, which run 

 from base to middle and are there terminated by a single stronger bristle, a single 



