Aphiochaeta. 367 



abdomen has the venter yellowish and tlie tergal piates are often 

 distinctly separated, with yellowish inscicures between them. 



Length. From fully 1 towards 2 mm. 



Remarks: This species is in the female easily distinguished, but 

 the male I cannot with certainty distinguish from pulicaria; I have 

 seen specimens of both sexes from Wood, and I think my males agree 

 with those of Wood; the characters given by Wood as distinctive 

 from pulicaria, smaller size and smaller supraantennals, especially 

 the lower ones, are in no way sufficient, and specimens of pulicaria, 

 sent from Mr. Collin, are in these respects similar to siibtumida from 

 Wood. 



A. siibtumida is common in Denmark, but less common, however, 

 than tumida; Ermelund, Dyrehaven, Ørholm (the author), Holte 

 (Th. Mortensen), Geel Skov and in Jutland at Hejls south of Kolding 

 and Ry (the author); my dates are "A — ^^/lo in 1917 to 1921, but 

 besides there are two specimens, females, in Stæger's collection, 

 placed under pulicaria. The species is most common in autumn. 



Geographical distribution: — Besides in Denmark occurring in 

 England and, according to specimens from Pater Schmitz, in Hol- 

 land, and it occurs also in Prussia (Schmitz, Tijdschr. v. Entom. 

 LXIV, 1921, 3). 



112. A. brunneipennis Costa. 



1857. Costa, Il giamb. Vico, Napoli, II, 450 {Megaselia). — 1909. "Wood, 

 Ent. Month. Mag. 2, XX, 241 (Phora). - 1914. Brues, Bull. Wisc. Nat. Hist. 

 Soc. XII, 114. — Trineura costata Zett. 1860. Dipt. Scand. XIV, 6474, 11—12. 

 — Phora costalis 1901. Beck. Abhandl. zool. bot. Gesell. Wien, I, 51,41, Taf. III, 

 Fig. 48 ((? nec ?). — A. costalis 1910. Kertész, Cat. Dipt. VII, 405, p. p. 



Male. Unknown (see under rubicunda). 



Female. Frons broader than high, dark brown or greyish brown; 

 bristles strong; inner bristle of lower row in the same height as the 

 outer and nearer to it than to the upper supraantennal ; supraantennal 

 bristles placed somewhat high on the frons, unequal, the lower half 

 the size of the upper or fully; the upper supraantennals rather ap- 

 proximate, nearer together than the inner bristles of middle row, 

 the lower direct below the upper, not more approximate. Antennæ 

 small, brownish, arista distinctly pubescent. Palpi yellow, not broad, 

 but otherwise of ordinary size and armature. Thorax brownish red, 

 nearly dull, with brownish pubescence. Pleura yellowish, posteriorly 



