Bambyliidae. 123 



— Wings wilh a slight, brownish, not distinctly bounded tinge 

 towards the anterior margin; occiput witbout long hairs at the 

 posterioi' eye-margin; costa witb spinulous hairs al the base. . 2. minor. 



1. B. major L. 



17G1. Linn. Fn. Suec. 1918. — 1842. Zett. Dipt. Scand. I, 188 et 1849. 

 VIII, 2977, 1. — 1855. Loew, Neue Beitr. III, 14, 21. — 1862. Schin. F. A. 

 I, 60. — 1903. Kat. palåarkt. Dipt. II, 195. 



Male. Ground colour black. Vertex with black hairs; frons with 

 sonie short, yellow, and with long, blackish or brownish hairs; face 

 and cheeks with long, reddish brown hairs; occiput with short, yel- 

 low, and with long, erect, brownish to reddish hairs, those along the 

 posterior eye-margin the longest, somewhat strong and brown, An- 

 tennæ black, the first two joints with long, black hairs. Thorax and 

 scutellum densely clothed with long, erect, yellow or pale greyish 

 yellow hairs. Pleura and sterna with pale reddish hairs, at the sides 

 from the humerus to the wing-root a broad, dark reddish brown stripe; 

 below the wing-root white hairs; metapleura with long, yellow hairs. 

 Abdomen densely clothed with long hairs of the same colour as those 

 on thorax but somewhat pale to whitish at the margin towards the 

 apex. Venter densely clothed with long, white hairs; about in the 

 middle there is a black, transverse band, reaching the sides and thus 

 forming a black spot in the middle of the lateral margin; the band 

 is somewhat widened in the middle and reaches the apex. Above 

 the segments have black, bristly hairs over about the apical half part 

 of the abdomen, placed in transverse rows and more or less visible 

 in the clothing; they are most numerous at the apex. The whole 

 clothing of the body shines quite whitish when seen from the side. 

 Legs yellow or brownish, the tarsi black towards the apex, the femora 

 blackish at the base; the femora at the basal part clothed with long, 

 brownish or blackish hairs, stretching nearly to the apex below ; the 

 hind femora on the ventral side with a row of long, strong bristles 

 anteriorly and a row of shorter bristles posteriorly; all the bristles 

 black; the depressed, somewhat scaly hairs whitish yellow. Wings 

 hyaline, blackish at the anterior margin, the bordering line sharp, it 

 stretches with some incisions from the alula which is quite blackish 

 to the apex of the radial vein; below the radial vein near the apex 

 there is a small spot, continuous with the other black part. Veins 

 blackish brown. Squamulæ blackish with a yellow fringe. Balteres 

 light brown, the peduncle paler. 



Female. Quite agreeing with the male. only the frons is broad 

 and yellow haired. 



Length 7 — 12 mm. 



