48 Orthorrhapha brachycera. 



1. L. ephippium Fabr. 



1776. Fabr. Gen. Ins. 308 (Asiltis). — 1805. Fabr. Svst. Antl. 157,3. 

 - 1842. Zett. Dipt. Scand. I, 161, 3 et 1855. XII, 4559,3. — 1847. Low, 

 Lin. Entoni. II, 544, 5. — 1862. Schin. F. A. I, 1938. — 1903. Kat. palaarkt. 

 Dipt. Il, 132. 



Male. Face blackish, narrowly yellowish at the inner eye-margin 

 and somewhat brownisli pruinose above the callus. Epistomal beard 

 yellowish white, with black hairs in the upper part; the hairs below 

 the antennæ and on the vertex yellowish to black. Proboscis black 

 with short, yellow hairs at the apex and with long, whitish hairs 

 below at the base. Palpi black, black haired. Occiput blackish, above 

 with black, downwards with brownish hairs. Antennæ black, the 

 hairs on the two first joints reddish. Thorax black, somewhat shining 

 on the front part which is not seen on the hinder part on account of 

 the dense pile; the larger front part is somewhat sparingly clothed 

 with erect, black hairs, the hind part with very dense, somewhat 

 longer, yellow to reddish hairs. Scutellum with long hairs of the same 

 coloLir, especially at the margin; there are no special bristles discernible 

 in the common clothing. Pleura with long, black hairs. Abdomen 

 black, shining, clothed with blackish or brownish hairs which towards 

 the apex get more reddish; the hairs are short on the middle of the 

 dorsLim, but longer towards the side margins, especially in front. 

 Venter black, sparingly clothed with long, black or brownish hairs. 

 The male genitalia are large, the arms of the upper forceps are some- 

 what shovel-shaped, broad at the end; they bend down somewhat on 

 the sides; the arms of the lower forceps have an inner branch stretching 

 out towards the apex, and an outer branch which is curved strongly 

 upwards and backw^ards and is two-pointed at the apex. The geni- 

 talia have reddish hairs above, black hairs below. Legs black, densely 

 hairy with shorter and longer hairs; hind femora bare and shining 

 on the ventral side; no stronger bristles visible. The hind femora 

 strongly club-shaped, the hind tibiæ curved, produced in a short, 

 blunt spine on the ventral side at the apex. Front coxæ with long, 

 yellowish white hairs; the hairs on the femora chiefly black, generally 

 paler below, and at the apex of the hind femora somewhat reddish ; 

 the hairs on the tibiæ partly black, partly reddish, the longer hairs 

 generally with whitish apex; the bristles on the tarsi reddish. The 

 dense pubescence on the ventral side of the front tibiæ and on the 

 posterior side at the apex of the hind tibiæ reddish; the pubescence 

 below the tarsi of the same colour, The claws reddish at the base, 

 black at the apex. Empodium reddish. Wings brownish yellow, 

 more hyaline at the base; the veins brown, in the apical half of the 



