June, '09] ENTOMOLOGICAL NEWS. 28l 



heavier. Antenna stout, five-jointed (counting the unguis), the 4th ami 

 5th joints being united into a spindle-shaped portion strongly constricted 

 at the base. A row of black dots also extends along either lateral margin 

 of the body, each black spot bearing a dark hair ; head, antennae and legs 

 dusky brown; legs and antennae stout and rather hairy. Length .51 mm. 



Y~oung adult stem-mother. 



From snowball bush in insectary, and just beginning to 

 give birth to young. 



General form very plump, color bluish white, due to the entire body, 

 except the terminal segment of the abdomen, being covered with a white 

 powder ; eyes, distal half of antennae, cornicles, tarsi, tibiae and point of 

 of beak black ; distal halves of middle and hind femora dusky. Length 

 of body 2.50 mm. ; width 1.50 mm. ; antennae .90 mm. ; joints three .37 ; 

 four, .11 ; five, .09 ; six, .16 mm.; cornicles, .18 mm. Cauda small, broad 

 as long, dusky in color as are the genital plates also. Cornicles short, 

 stout, tapering, and with moderate flange. 



In alcohol or balsam the general color is pale green, sometimes show- 

 ing a little orange in the region of the cornicles. Eyes dark red. Lateral 

 tubercles of prothorax small and weak, and similar slight tubercles upon 

 about 3 or 4 of the abdominal segment. 



Old adult stem-mother Plate XI, figs. 2 and 2. 



The old stem-mothers taken May 18, 1908, with large colonies of their 

 young, many of which were about to become winged, were deep green, 

 almost a blue-green in color, with more or less white powder over the 

 entire body. Some specimens, however, had the powder nearly all off 

 from the dorsum. The cornicles, genital plates, hind margin of eighth 

 abdominal segment, distal half of the very small cauda, distal ends of 

 antennae and beak, all of cornicles, tarsi and tibiae, and greater portion 

 of femora black or blackish. The body, legs and antennae are rather 

 sparsely set with very delicate pubescence ; lateral thoracic and abdomi- 

 nal tubercles very weak ; eyes dark red. Upon the dorsum may be seen 

 from 2 to 6 longitudinal rows of small black or blackish specks when 

 specimens are put in alcohol. Length of body 2.75-3 mm -\ antennae 6- 

 jointed and about .90 mm. long. 



Young or second generation.. 



The young that are given birth to by the stem-mothers are apparently 

 white, but really slightly tinged with green or a very light yellow, and have 

 red eyes as the only conspicuous dark parts ; the tarsi and extreme end of 

 the beak are also dusky to black. The body above lacks entirely the small 

 black dots and dusky colorations upon the head that show upon the young 

 of the stem-mothers, but the bodies are dusted with white powder. 



Pupa. 



The pupae vary from pale green to very pale yellow (almost white), 

 and have no dark coloration except the red eyes and the dusky to black- 



