Vol. XXVli] ENTOMOLOGICAL NEWS. 447 



Male. Resembles the alate fundatrigene hut is much smaller, ahout 

 i mm. in length; antenna (figure 10) about 1.15 long, joint I strongly 

 gibbous, joints II and III with sensoria about as in alate virgogene. 

 joint V with about 10 to 12 sensoria; cornicles about .33; claspers 

 black ; cauda dusky ; hind tibia .66. 



Described from four specimens, two taken October 20, and 

 two taken September 28, 1915, at Fort Collins. Colo., by L. 

 C. Bragg, from Shcpherdia argcntea. 



Oviparous Female. Resembles the other apterous forms of the year 

 very closely, is more yellow in color, averages a little longer than the 

 stem-mother; antenna about .80, or nearly once and a half as long as 

 the antenna of the stem-mother. Segments 3 and 4 united in one as 

 in the other apterous forms ; cornicles, .45 ; hind tibiae moderately 

 swollen throughout nearly their entire length, and with many small 

 sensoria, see figures 8 and 9. 



Described from specimens taken by Mr. L. C. Bragg, at 

 Fort Collins, Colo., from Shephcrdia argentea, Oct. 20, 1915- 



Siphocoryne aquatica, n. sp., Plate XXV. 



Alate Virgogene. Head, thorax, antennas, tarsi, distal ends of tibiae, 

 and cauda black or blackish ; abdomen green with transverse dashes or 

 blotches on most of the abdominal segments, which, in some, form a 

 continuous area on segments 2, 3, 4 and 5. These dark markings 

 largely disappear in balsam. Length of body 2; wing 3; cauda .20; 

 antennae i.io; cornicles clavate without flange; venation normal; third 

 joint of antenna with about 14 nearly circular sensoria; permanent 

 sensoria ciliated; joint 3 about twice as long as 4, and joints 4, 5, 6 

 and spur sub-equal ; a small but distinct wart-like tubercle on the hind 

 margin of joint 8 of the abdomen, just before the cauda; figures i, 

 2, 3, 4- 



This is a very common louse on a water-grass (Catabrosa 

 aquatica} growing on seeped land, usually found in the water 

 along the margins of ditches. The lice often occur on leaves 

 and stems beneath the water where they seem to be perfectly 

 at home. This louse remains on the grass throughout the year, 

 and has been found alive under ice following temperatures 

 as low as 15 to 20 degrees below zero. We have made collec- 

 tions at thirty different dates in ten different years. Both 

 alate and apterous forms have been taken in every month of 

 the year, and, apparently, they occur at all times. No sexual 

 form or eggs have been recognized. Mr. Bragg took this 



