198 Journal New York Entomological Society. [Vol. xvi. 



appear about the time the females begin to spin their egg-sacs and 

 continue to appear through January, February and March. The 

 young hatch out about April i, and are active through the summer 

 and fall months. About November i they disappear and are found 

 from that time to January in the crevices of the bark and in open 

 cones. The male cocoons are found mostly in open, dead cocoons. 



Xylococcus macrocarpae, new species. (PI. V, Figs. 1-3.) 



Adult Female. Length 6 mm., width 3 mm.; shape oblong-oval ; color dark 

 olive-brown. Antennas I mm. in length, light brown in color. Legs light yellow, 

 extending slightly beyond margin of body. Antennae 8- or possibly 9-jointed (the 

 second joint is apparently divided into two, but the division is not often distinct); 

 formula for S-jointed antenna : 2, 1 (3, 8) (5, 6, 7), 4. 



Eggs. Lemon-yellow, length .6 mm., diameter .35 mm. 



Young (larvae just hatched). Length .7 mm., width .3 mm.; antennae 6-jointed 

 (the 6th longest, 2, 3, 4, 5 subequal); color yellow. 



Adult Male. Length : body 2 mm., width across thorax .8 mm., wings 3 mm. 

 long by I mm. broad, expanse about 7 mm.; color of head and thorax dark brown, 

 abdomen yellow, with bands of brown above and below, wings cinereous; veins black- 

 ish ; only one distinct branch to discoidal vein. 



Life History. So far as I have been able to trace the different 

 stages and transformations in this species, the life history is almost 

 identical with that of Xylococcus betuloz Pergande, as described in Bul- 

 letin No. 18, New Series, U. S. Department of Agriculture, Bureau of 

 Entomology. About the only difference I can discover is that in the 

 cysted stage the females do not gather in groups, but are quite evenly 

 and singly distributed under the bark, the wax tubes being found in 

 crevices in the bark. 



Description of the Plates. 

 Plate IV. 

 ( Pseudococcus cupressi sp. nov. ) 

 Fig. I. Adult female (dorsal view). 

 Fig. 2. Same (ventral view); a, leg ; b, antenna. 

 FlG. 3. Young individual ; a, leg ; b, antenna. 

 Fig. 4. Head of male ; a, leg ; b, antenna ; c, penis of same. 



Plate V. 

 (Xylococcus macrocarpa sp. nov. ) 

 Fig. 1. Adult female; a, antenna; b, leg of same. 

 Fig. 2. Adult male ; a, leg of same. 

 Fig. 3. Young individual ; a, leg ; b, antenna of same. 



