122 Phoridae. 



2. P. unispinosa Zett. 



1860. Zett. Dipt. Scand. XIV, 6475, 12-13 (Trineura). — 1901. Beck. 

 Abhandl. zool. bot. Geseli. Wien, I, 30, 18, Taf. II, Fig. 21-22 (Phora). - 

 1906. Wood, Ent. Month. Mag. 2, XVII, 193, 265 {Phora). — 1910. Kertész, 

 Cat. Dipt. VII, 397 {Phora). - 1914. Brues, Bull. Wisc. Nat. Hist. Soc. XII, 

 97 {Dohrniphora). — 1918. ScLmitz, Jaarb. Natuurh. Grenootsch. Limburg 

 1917, 96 {Pseudostenophora). 



Male. Frons considerably broader than high, black, slightly 

 shining; anterior rows of bristles a little convex. Jowls yellow. An- 

 tennæ small, reddish, arista distinctly pubescent. Palpi yellow, rather 

 narrow, with bristles of ordinary size, but one at the apex specially 

 long. Thorax black, sometimes somewhat brownish, with dark pube- 



Fig. 47. Wing of P. unispinosa ?. 



scence; one pair of dorsocentral bristles. Pleiira greyish black or 

 brownish to yellowish brown. Scutelliim with two bristles. Abdomen 

 black, not shining, second and sixth segments slightly elongated. 

 Abdomen with very sparse hairs, only at the hind margin of sixth 

 segment a little more conspicuous hairs. Hypopygium greyish or 

 reddish grey, not large, the tergite is short above, the sides prolonged 

 as two band-shaped or a little spoon-shaped prolongations forming 

 something like a forceps, the right arm is a little longer than the left; 

 anal tube short, somewhat flat, yellow, with longish hairs; there is 

 a large and arched, somewhat triangularly pointed ventral plate of 

 brownish colour. Legs yellow or brownish yellow; front tibiæ with a 

 small dorsal bristle at about the middle; middle tibiæ with a pair 

 at the upper third, a dorsal and an anterodorsal, the former gener- 

 ally the smaller and perhaps sometimes wanting, and with a very 

 small anterior bristle at apex, sometimes wanting; hind tibiæ with a 

 dorsal bristle above the middle and a small anterodorsal at apex, 

 sometimes almost (or quite) wanting. Wings a little brownish tinged, 

 veins brown; costa reaching beyond the middle, 1 about double 2; 



