738 ASILID^ 



apical circlets on tlie joints of the tarsi dull orange, but some of those on the 

 femora and tibiae so dark as to appear almost black. Pulvilli broad and pale 

 yellow ; empodium orange ; claws bright orange on the basal half. 



Wings of a greyish brown tinge, but brownish yellow on the base and 

 foremargin and about the postical vein ; third posterior cell narrower at the 

 wingmargin than the second or fourth ; anal cell well open. Alar squamae 

 dirty orange, with a thick yellow or orange margin on which is a moderately 

 long pale yellow f I'inge except near the alulae ; thoracal squamae represented 

 by a pale yellow line. Halteres canary yellow. 



5 . Very distinct looking from the male, because of the much paler legs and more 

 distinctly striped thorax. Face nearly all pale greyish yellow or (in some 

 lights) shimmering silvery except just under the antennae ; face-beard smaller 

 (about 30 hairs) ; chin-beard orange or yellow ; bristles on the back of the 

 head orange. 



Thorax with three distinct approximated greyish yellow lines (middle one 

 narrowest), and with obvious minute depressed yellow pubescence except in 

 front and on the two polished black impunctate intermediate lines ; all the 

 bristles obviously orange ; points of the humeri and postalar calli rather 

 shining dark chestnut. Pleurae with the band of pale tomentum along the 

 top of the mesopleurae sometimes more extended downwards at each end (and 

 in some very large specimens from Kingussie a resumption of the front line 

 appears on the front part of the produced point of the sternopleurae). 

 Scutellum almost as in the male. 



Abdomen broader, especially after the third segment, and bearing rather 

 sparse minute light grey pubescence which is visible because of its colour. 



Legs orange, with the base of the femora paler yellow, but black or 

 brownish black on the tarsi and on rather more or less than the apical half of 

 the tibiae. Pubescence on the blackish parts minute but obvious because all 

 yellow ; long hairs on the femora almost absent. 



Wings paler, and the veins about the base and front part yellowish. 

 Squamae yellower, Avith bright orange or yellow margins and long pale yellow 

 fringes. Halteres whitish yellow or orange. 



Length about 11 mm. to 14 mm. 



This species may be distinguished from all our British ones by the 

 absence (or at least wide interruption) of the pale shimmering stripe 

 across the front of the pleurae and by the abundant face-beard, while the 

 size and the peculiar coloring of the femora of the male at once distinguish 

 that sex ; the female may also be distinguished from D. celandica by its 

 much lighter colored wings and its less elongate abdomen, and from D. 

 Bavyinhaiicri and D. linearis by its much larger size and its stronger 

 stouter build. It varies considerably in size though always a large 

 species, and (in addition to variations already mentioned) two females 

 taken by Colonel Yerbury at Kingussie on July 26, 1898, are worthy of 

 special note ; they are very large and have the front pleural shimmering 

 stripe continued (after a long gap) on the lower front part of the sterno- 

 pleurae, the femora are dark orange red with the apical half of the posterior 

 pairs inclined to be blackish and with a deeper black stripe above on the 

 apical half, the squamae and halteres brownish orange, while one of the 

 specimens has three praesutural bristles ; I am quite satisfied however that 

 they are only very large forms of D. Reinhardi. 



D. Bcijihardi is not common in England, though apparently 

 common in North Scotland ; in England I have records from only the 

 neighborhood of Bristol (according to Shuckard when describing his 

 D. Mcigenii), the New Forest, Frant in Sussex or Kent, Colchester in 

 Essex, and Herefordshire, and I do not think it is at all abundant in 

 any of these localities, but Colonel Yerbury found it common in cornfields 



