DUES AM DIPTERA. 393 



LVII. 663. 



123 (122). Male abdomen almost bare. 



124 (125). Hind tibiae distinctly ciliated; 2-3 mm. 



(Jiumeralis, Ztt. ?) 



125 (124). Hind tibiae almost bare; i-ii mm, 



126 (127). Fore metatarsus distinctly thickened, (dahlt, Beck.) 



127 (126). Fore metatarsus not thickened. 



2865. Phora pulicaria, Fin. 

 Bishop Auckland, 1 $, 7-4-02; 3 ?, 19-4-02. 



128 (102). Halteres dark brown or black. 



129 (130). A long and broad brown stigma, almost filling 



0.1. {co stalis, v. Ros.) 



130 (129). No such stigma. 



131 (140). Only two scutellar bristles. 



132(135). Costa not reaching to the middle of the wing; 

 V.I. and V.3. much approximated. 



133 (134). Frons long, arched, and shining black; male organ 



large, clubbed, yellow. (xanthozona, Strobl.) 



134 (133). Frons of normal length, matt, dark grey dusted. 



(pusilla, Mg.) 



135 (132). Costa reaching the middle of the wing; V.I. and 



V.2. not specially near one another. 



136 (137). Costal ciliation long; hind femora normal, thinning 



gradually. ptilicaria, Fin. (2865) 



137 (136). Costal ciliation very short; hind femora, especially 



in the male, dilated throughout, thinning 

 suddenly at the tip; hind tibiae distinctly 

 ciliated ; halteres often pale. 



138 (139). Frons very long, arched, and shining. 



2866. Phora minor, Ztt. 

 Bishop Auckland, 1 ?, 16-5-02. 



139 (138). Frons of normal length, grey dusted. 



(2867. ciliata, Ztt.) 



140 (131). Four scutellar bristles. 



141 (144). Costal ciliation long, or very long. 



142 (143). Third antennal joint in the male about as large as 



the eye ; size 1 J mm. (palmem, Beck.) 



