28 Ortliorihapha biachycera. 



This species is distinguislied, in tlie male, from panfherinus by tlie 

 black venter, and in the female by Ihe wiiite spots above Ihe an- 

 tennæ and the side spots on the dorsal surface of the abdomen wiiich 

 are never found in pantherinus; in both sexes it differs from panthe- 

 rinus by having tlie white liumerai cailus larger and the wliite side 

 stripe broader, and also the shape of the liead is characteristically 

 different, the snout being shorter, and the eyes not elongated. 



N. uliginosus is common here; vicinity of Copenhagen, Vester- 

 fælled, at Boserup near Roskilde, at Frederikssund, Bogenæs and 

 Skelskør; on Funen at Hoffmansgave by Odensefjord; in Jutland at 

 Horsens, and on Læsø. Ali my dates are from July and the be- 

 ginning of August. It seems to some degree lo prefer salt marshes, 

 f. inst. I have taken it on Vesterfælled in great numbers in the 

 flowers of Crepis. 



Geographical Distribution: — Distributed in nortliern and middle 

 Europa, in north to middle Sweden and in south to northern France, 

 but it seems rare farther south. 



3. N. notatus Zett. 



1842. Zett. Dipt. Scaiiti. I, 148, 3. — 1846. Loew, Linn. Entom. I, 

 437, G. - 1862. Schin. F. A. I, 5 et 6. — 1903. Kat. palaarkt. Dipl. II, 8. 



Male. Snout short; antennæ black or blackish brown, inserted 

 rather high on the snout. Eyes round, dark greenish, slightly me- 

 tallic, unicolorous ; they are bare but the suture is finely haired. Front, 



Fig. 11. Head of -V. notatus male and feinale. 



above the antennæ, with a somewhat obcordate wliite spot, divided 

 by a fine black line. Thorax shining black, slightly bluisli; the white 

 humeral calius rather large, and the white stripe going to the wiiig- 

 i'oot distinct and broadened behind. Pubescence greyisli white, shi- 

 ning. Abdomen white, tiie base with a black spot, nearly reaching the 

 lateral margins of the first segment and prodiiced over the middle of 

 the second segment, here conically tapering; on the third segment a 

 black spot, tliat is either roundish and isolated or more quadratic and 

 with prolongations from the hind corners connected with the black 



