Vol. XXviii] ENTOMOLOGICAL NEWS. 127 



Liancalus hydrophilus Aid. (Fig. 3). 



I took a single male of this species at Colorado Springs. It 

 was resting on rocks over which water was trickling, in South 

 Cheyenne Canon. It measures but 7 mm. in length, which is 

 about 2 mm. less than Prof. Aldrich's type specimens from the 

 Black Hills, South Dakota, but the length of the wing is 7 mm., 

 while the wings of his measured 7.5 mm. The knees of this 

 specimen are distinctly but narrowly yellow. The other char- 

 acters are as he gives them (Psyche, Vol. 6, p. 569). The 

 drawing of the wing is from my specimen (Fig. 3). 



Liancalus limbatus sp. nov. (Fig. 4). 



$ . Length 9 mm., of wing 7.5 mm. Face bright green with silvery 

 pollen which is quite thick along the orbits, divided a little below the 

 middle by a transverse ridge; palpi thickly covered with silvery pollen 

 and with small black hairs; proboscis dark brown; antennae black, third 

 joint only a little longer than wide, somewhat triangular; front dark 

 greenish gray with a little white pollen ; ocelli placed on a small brown 

 spot; the black orbital cilia extending down to about the middle of the 

 eye ; below these are a few fine white cilia which are difficult to distin- 

 guish from the long yellowish hairs which cover the lower half of the 

 occiput; the two post-vertical bristles are prominent but not very large. 



Thorax bright metallic green with four golden-green vittae, the outer 

 ones broken at the suture; thorax quite thickly covered with white pol- 

 len which is almost invisible in certain lights; a single row of acrosti- 

 chal bristles; six dorsocentrals on each side; bristles of the thorax in- 

 serted in minute black dots; metanotum green with white pollen; scu- 

 tellum with six marginal bristles. 



Abdomen green but so thickly covered with pollen as to appear whit- 

 ish in certain lights; base of second and hind margin of second to fifth 

 segments brown, which color extends forward along the center of the 

 dorsum and reaches the base on the second and fourth segments: this 

 brown color is due to pollen and the shining green ground color shows 

 through it in certain lights ; sixth segment green ; abdomen with minute 

 black hairs and more abundant and longer fine yellowish hairs, those on 

 the sides and on the first segment longest; first segment with a few 

 slender black bristles near the hind margin above ; hypopygium mostly 

 brown with two flattened filiments which are sparsely fringed with pule 

 hairs and are two-thirds as long as the abdomen. 



Fore coxae green with white pollen and fine white hairs on the front 

 surface and two small black bristles near the tip ; middle and hind coxae 

 more blackish; legs green; knees slightly yellowish; tarsi black; fore 

 tarsi with the first joint long, second joint only a little longer than widr, 

 slightly dilated and fringed below with short bristles as in (icnuitlis and 

 hydrophilus, third joint longer than fourth. 



