322 Orthorrhapha hiachycera. 



Length 2,2 to about 3 mm. 



T. alhiseta is very rare in Denmark, only five specimens have 

 been taken; Dyrehaven (H. J. Hansen); on Langeland at Lohals (the 

 author), and on Funen at Odense and Veflinge (H. J. Hansen); my 

 dates are only ^"/o — ^/t. The species occurs on bushes and in low 

 herbage on shaded piaces in woods. 



Geographical distribution: — Europe down into Italy, and further 

 into North Africa; towards the north to Lapland, and in Finland. 



33. T. albocapillata Fall. 



1815. Fall. Dipt. Suec. Empid. !», 7 p.p. — 1822. Meig. Syst. Besclir. 

 III, 79, 28. - 1842. Zett. Dipt. Scand. 1, 309, 45. — 1862. Schin. F. A. 

 I, 90 [Platypalpus). — 1903. Kat. palaarkt. Dipt. Il, 280. 



This species resembles alhiseta so much, that I shall only give 

 the differences. The third antennal joint is longer, the antennæ, with- 

 out the arista, fully as long as the head, the arista is shorter, about 

 as long as the third joint. The legs together with the coxæ black, 

 the apex of the femora, and the base of the anterior tibiæ generally 

 paler; sometimes the legs are only dark brownish. The wings have 

 the cubital vein a little more curved. 



Length 2,2 to about 2,5 mm. 



This species is distinguished from alhiseta by the longer antennæ 

 with a shorter arista, which is a quite constant character, and by 

 the black or dark legs. The characters in the fumigation of the 

 wings, mentioned by Strobl (Mitth. Ver. Steierm. 1892, 109), I fmd 

 not confirmed, and when he speaks of a slightly pruinose thoracic 

 disc in albocapillata, this is no doubt erroneous. 



T. alhocapillata is rare in Denmark; Amager, Ordrup Mose; on 

 Funen at Hoffmansgave ; in Jutland at Frederikshavn; and on Læsø; 

 my dates are in July. 



Geographical distribution: — Europe down into Italy; towards 

 the north to middle Sweden, and in Finland. 



