126 ENTOMOLOGICAL NEWS. [Mar., '17 



Tegulae brownish with black cilia; knob of halter es yellow. Wings 

 dark grayish with black veins. 



Described from one male taken at Victor, Colorado, June 

 nth, at an elevation at 9800 feet. Type in the author's collec- 

 tion. 



Campsicnemus nigripes sp. nov. (Fig. 2). 



$ . Length 2 mm., of wing 2.5 mm. Face narrow with nearly paral- 

 lel sides, covered with yellowish brown pollen which is darkened on the 

 upper portion of the face; front black; antennae black, third joint longer 

 than wide, rounded at tip. 



Thorax shining black with a trace of a green vitta on the posterior 

 part; scutellum bluish black with a few delicate hairs on the margin (if 

 there have been bristles on the margin, as no doubt there have been, 

 they have been broken off). Abdomen black with green reflections. 



Coxae and legs altogether black, except the tips of the middle femora 

 which are yellowish ; the four hinder femora ciliated with short stout 

 hairs below; middle tibise long, flattened, with a few rather long 

 bristles above; middle metatarsi (Fig. 2) slightly arched with a large 

 subquadrate ending which has a spur-like projection at one corner; the 

 second joint is attached at the base of this quadrate ending; on the con- 

 cave side the metatarsi are fringed with little bristles or hairs which are 

 about as long as the thickness of the joint and two longer bristles near 

 the base. 



Tegulae and their cilia brown; halteres dark yellowish brown. Wings 

 dark grayish ; veins black. 



Described from one male taken at Sacramento, California, 

 June 4th. Type in the author's collection. 



Table of Males of the North American species of Liancahts. 



1 First joint of fore tarsi shortened 2 



Second joint of fore tarsi shortened 3 



2 Last three joints of fore tarsi of nearly equal length., similis Aid. 

 Third joint of fore tarsi as long as fourth and fifth together. 



querulus O. S. 



3 The opaque white spot at the tip of the wing circular. 



genualis Loew. 

 The opaque white spot at apex of wing oval or semicircular 4 



4 Wing deeply excised back of fourth vein and with two bristle- 



like pencils of hairs one either side of the excision 



(Fig. 3) hydrophilus Aid. 



Wings deeply excised back of fourth vein but without the pencils 



of hairs, (Fig. 4) limbatus sp. nov. 



