Aphiochaeta. 297 



Remarks: This is a rather characteristic species, easily known 

 by tlie yellow legs, the characteristic shape of the wing, and also by 

 the high, nearly rhomboidal anal tube in the male. I think the deter- 

 mination is beyond doubt, and I have also got the species as hortensis 

 from Pater Schmitz, but Wood's description of the hypopygium as 

 absolutely bare (1. c. 144) does not agree, as the hairs are, to be sure 

 somewhat small, but quite distinct. Wood says (1. c. 113) that the 

 four species obscuripennis, conformis, hiimilis (= Dahli) and altico- 

 lella have the front tibiæ in the males ciliated with small and fme 

 black bristles, but hortensis not; I am unable to see any difference 

 here, and I cannot see that these species at all have bristles on front 

 tibiæ otherwise than most other species of Aphiochaeta, nor can I see 

 any difference herein between males and females; if a difference is 

 present it is at any rate very slight. 



A. hortensis is common in Denmark, and has often been taken 

 numerously; Copenhagen, Holte, Hillerød, Suserup Skov at Sorø, 

 Bogø south of Sealand, in Jutland at Hejls south of Kolding, Jelling 

 and on Læsø (Th. Mortensen, the author); my dates are ^Ve — ^Vs 

 in 1916 to 1921. I have taken it in copula on ^V?. I have generally 

 taken the species with the net on bushes and in low herbage, a few 

 specimens are taken on windows in Copenhagen. 



Geographical distribution: — Besides in Denmark occurring in 

 England and, according to specimens from Pater Schmitz, in Holland. 



54. A. exclusa Lundbk. 

 1921. Lundbk. Vidensk. Meddel, fra Dansk naturh. Foren. 72, 134, 5. 



Male. Frons broader than high, black, a little greyish and dull; 

 inner bristle of lower row somewhat below the outer and a little nearer 

 to it than to the upper supraantennal ; supraantennal bristles somewhat 

 large, equal, the upper in about the same distance from each other 

 as the inner bristles of middle row, the lower well below the upper 

 and sligbtly more approximate. Antennæ small, brownish black, 

 arista distinctly pubescent. Palpi yellow, of ordinary size and arma- 

 ture. Thorax black, slightly shining, with brownish pubescence. 

 Pleura a little brownish anteriorly. Mesopleura with uniform bristles. 

 Abdomen black, dull, the short hairs slightly longer at the hind mar- 

 gins of the segments. Venter brownish. Hypopygium small, in my 

 specimen partly withdrawn, but without bristles; anal tube short, 

 but high, yellow. Legs yellow, hind femora slightly darkened at apex; 



