142 THE CANADIAN ENTOMOLOGIST. 



way across it a little before the middle ; the base is smooth for half the 

 length, the remainder with rather large, tolerably close punctures ; near 

 the tip is a small spine, not more than one-third of the usual size. The 

 upper surface is covered with dense, recumbent, somewhat golden pubes- 

 cence which obscures the sculpture. The remaining joints are all more 

 or less scabrous, the second covered above with pubescence like that of 

 the first, but the third, fourth and fifth only bear a few scattering hairs. 

 The specimen is a male and is one of a number taken by me at 

 Albuquerque, New Mex., in 1888. 



The remaining example (fig. d) is that presented by a Macrobasis 

 tenella, Lee, from Tucson, Arizona. The left middle leg is here affected, 

 the femur having two tibi«, each having its tarsus. What we may con- 

 sider as the normal one departs but little, if at all, from the usual type, 

 though it is possibly a little more bent ; the other is more slender, its 

 tarsus weaker, the last tarsal joint being more like that of an antenna than 

 of a leg. The accessory member is less perfectly chitinized than the 

 other. Both tibiae have the usual spurs at the apex, though they are 

 partially hidden in the figure. 



NEW SPECIES OF PHORA. 



EV J. M. ALDRICH, BROOKINGS, SOUTH DAKOTA. 



The following table includes only the species of Phora described by 

 Loew, and four new ones — ten in all. Phora atra of European ento- 

 mologists, together with P. cor?iuta, Bigot, fuscipes, Macq., and rufipes, 

 Meigen, are said to occur in North America — the second in Cuba, the 

 last two in the Hudson Bay region — but I have not seen the descriptions : 



1. Middle tibi^ armed with bristles on the outer side below the knee ; 



frontal bristles all pointing upward, - - - - - 2 



Middle tibiae unarmed on the outer side below the knee ; bristles of 



the lower edge of the front pointing downward, - - - 6 



2. Halteres black or blackish, ------ - 3 



Halteres white or whitish, ------ - 5 



3. Second heavy vein very thick and stout, - pachyneura, Lw. 

 Second heavy vein not unusually stout, - . . - 4 



4. Second heavy vein simple, the apex dilated, - - clavata, Lw, 

 Second heavy vein forked, .... cimbicis, n. sp. 



