16 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Winged Female. — Color as in cooleyi; length from 1.3 to 2 millimeters ; 

 wings a little smoky, especially along the veins; venation normal, one 

 transverse vein in hind wing very distinct. Wax glands of abdomen 

 are arranged as follows : The lateral rows with well-developed glands on 

 the first six segments ; the two dorsal rows well developed on segments 

 1 to 6; the middle row on either side begins on segment 3 and 

 ends upon segment 6. The antenna in this species is very similar to 

 that of montanus. Segments 1 and 2 are short and cylindrical, seg- 

 ments 3, 4 and 5 are in the proportion of 22, 26, and 25 respectively, 

 segments 3, 4 and 5 are provided each with a very large sensorium 

 similar to those fovmd upon the antenna of montanus. The transverse 

 striations upon the segments run in nearly straight transverse lines 

 instead of curved lines, as in the case of montanus. This species is 

 easily separated from montanus by the presence of well-developed wax 

 glands upon the abdomen, and the more slender legs. 



I supplied the breeding cage where this louse was emerging with fresh 

 twigs of red fir and blue spruce. The lice began at once to locate 

 upon the needles of the blue spruce and to lay eggs rapidly, but none 

 located upon the needles of the red fir. 



The galls were all taken from blue spruce trees and were considerably 

 less numerous than those of Chermcs cooleyi. Altitude 9,000 feet. 



Chermes coloradensis n. sp. (Plates VIII, IX and X.) 



This species was first noticed by the writer upon the needles of Bull 

 or yellow pine {Pinus scopidorum) growing upon the campus of the 

 Colorado State Agricultural College in the spring of 1897. Its presence 

 has been noticed in some numbers every year since. Some years the 

 needles and the new growths have been fairly whitened with its cottony 

 secretions during late spring and summer (see PI. VIII), while in other 

 years the lice have barely been able to survive in small numbers, as 

 their insect enemies are many and active. The writer figured this 

 louse upon pine needles in Plate I of Fourteenth Annual Repori of the 

 Colo. Agr. Exp. Station, 1901. 



Habitat and Host Plants. — I have found this louse common upon Bull 

 pines occurring upon the foothills of northeastern Colorado and in the 

 city parks of Colorado Springs and Denver. In 1905 I found it com- 

 mon upon this pine in the vicinity of Palmer Lake. During the last 

 week of June,. 1906, Prof. T. D. A. Cockerell sent me infested pine 

 needles from Florissant, Colorado, that were taken at an altitude of 8,000 

 feet, and I have on several occasions taken what seems to be the 

 same species upon Lodge Pole pine {Pinus murrayana) growing upon 



