Aphiochaeta. 403 



somewhat hroad, with the hairs below the basal half somewhat long; 

 bristles on hind tibiæ distinct and not qiiite small. Wings yellowish, 

 veins pale brown, the thin veins not specially fine, costa about 0,40 

 of the wing-length, but varying and reaching sometimes to 0,43; 

 costal divisions about as 11 — 5 — 3, but also a little varying; costal 

 cilia moderately short, rather midway between short and long; fourth 

 vein slightly curved, especially at each end, but nearly straight on 

 the middle part. H alteres yellow. 



Female. Quite similar to the male; hind femora likewise with 

 longish hairs below. 



Length 1,3 to fully 1,5 mm. 



As seen from the description my specimens are not quite agreeing 

 with Wood's description as regards the length of costa and the costal 

 divisions, but as they are otherwise quite agreeing, especially as 

 regards the supraantennal bristles, the hypopygium and also other- 

 wise, I think my determination is correct. 



A. lata is common in Denmark; Ermelund, Dyrehaven, Lyngby, 

 Geel Skov (the author), Holte, Suserup Skov at Sorø (Th. Mortensen), 

 on Langeland at Lohals and in Jutland at Hejls and Skamling south 

 of Kolding, Ry and Laven (the author); my dates are Vs — ^Vn in 

 1917 — 1920, I have generally taken it with the net in low herbage 

 in woods, and once on a fresh, somewhat exsudating stub of Acer. 

 The specimens from ^*/u, by remowing some five-wood, were found 

 below it. 



Geographical distribution: — Denmark and England, where it 

 seems to be rare, as only two males are known; according to a commu- 

 nication from Pater Schmitz, it also occurs in Holland; Pater Schmitz 

 has compared specimens from me, so that his species and mine are 

 with certainty identical. 



140. A. maura Wood. 



1910. Wood, Ent. Month. Mag. 2, XX, 196, 201 {Phora). — 1914. Brues, 

 Bull. Wisc. Nat. Hist. Soc. XII, 123. — 1919. Schmitz, Entom. Ber. Nederl. 

 Ent. Ver. V, 142. 



Male. Frons nearly quadratic, greyish black, dull; inner bristle 

 of lower row somew4iat below the outer and in about the middle be- 

 tween it and the upper supraantennal, and it is considerably nearer 

 the eye-margin than the middle line; supraantennal bristles nearly 

 equal, the lower a little smaller than the upper; the upper supra- 

 antennals somewhat distant, more distant than the inner bristles of 



26* 



