PoMON \ ('ol.I.K(iK Joi-HNAI. OF F,NTOMOI.OfiV 543 



nnd apical onc-lialf of \'I <lii.sky, h-iijftlis of the artirlcs: I, 0.08 mm.; II, 0.07 

 mm.; III. 0.,S mm.; IV, ().l-2 mm.; V, O.I.t mm.; VI, O.l.'i imii. ; total .85 mm. 

 Thorax — \\'i(lfniiijt from [jrotlionix, wliicli is very narrow, to Imsc of alxlomi-n. 

 Mfsothorax — .Much wider tliiiii the pro- or mctatliorax. Ahdomrn W'xdisi in 

 iiiiddlc. ground color is rcddish-hrown with two broad lateral and one ttroad 

 central dorsal, white longitudinal strijics with a whitish transverse stripe between 

 eornich-s and several white blotches behind the cornicles. These white stripes /ind 

 blotches are produce<l by the powdery wax and very noticeable irregularities may 

 he observed because of mieven removal of this wax by some extirnal means. Tin- 

 dark areas in the drawing show the ground color of the body while the white areas 

 show the |>owdery wax. Cornicles — (Figure 178 K.) Truncate, nuich wider at base 

 than at tip, entirely dark brown or dusky, basal two-thirds hairy. /,f^'i--As in 

 winged form. Style — Rounded, hairy, inconspicuous. 



Si/mphs nnd Youni; — Brownish-red in color, without powdery secretion. 



llosl — This species was found in great colonies on the bare twigs of Thutfa 

 orciilrntalis. F.uropean writers report it upon Jitniperus connnunis only. 



Locality- Taken by the writer at Santa Paula .-ind C'laremont, California. I 

 am indebted to .Mr. .1. N'euls, a student of Pomona College, for winged specimens, 

 which I had been unable to secure. The apterous forms are plentiful, but it took 

 nearly three years to obtain the winged specimens, although a sharp look-out was 

 maintained all of the time. Date of collection — March 7. 191 •• Serial number 7. 



This species seemed to be a new one at first, for it was hardly jjrobablc that 

 the European species could have been first reported in America on the Pacific 

 Const, and not have been obtained in the Kastern states (a fact which I have not 

 been able to ascertain). After a close study and comparison with the descriptions 

 given in the works of Koch, Kaltenbach and Buckton, I am satisfied that this is 

 the .luniper Aphid of Europe and has been introduced into the United States on 

 nursery stock. Buckton gives this interesting note: "Mr. Hardy has found the 

 black eggs on the twigs, and sometimes plentifully." "DeGccr states that the 

 male is apterous." .Mon. Brt. .\i>Iiidis. Ill, p. H-, 1881. 



Macrosiphum albifrons n. .sp. 



LUPIN K APHID (Figure 179) 



wiNOKi) vivii-AHois FKM.M.K (Figure 180 A) 



Length of body not including style ,'i.8 mm., width of mesothorax O.S."! mm., 

 greatest width of abdomen 1.8 mm., wing expansion 1 1.0^ nnn., large, robust form. 



I'rrvailinp color — (jrayish-greeii. the body proper is bright green and 

 B|)pcars so immediately after moulting. The gray color is produced by the secre- 

 tion of a fine, white, powdery wax. This powder may be thick enough to cause 

 the insects to appear silvery. The winged forms do not secrete as much of this 

 covering as do the apterous ones and the green body may appear through the thin 

 coating. Head — .Somewhat darker than the remainder of the body, nearly as long 



as wide. Eifci — .Small, dark red. Antcnnai (Figure 180 .a). .Situated on slightly 



gibbous, prominent tubercles, longer than the body, sparsely haired, dusky with 



