534 ]\rr. Jolin Scotfs Munnfjvdpli of the 



This insect belongs to the same section as P. Furstert, 

 Bnxi, l5*c., owing to the shortness of the frontal lobes, and 

 the almost total absence of a costal stigma ; but from its 

 smaller and more delicate ap))earancc, ijulej)endent of the 

 form of the genitalia, it is easily distinguished. 



Apparently not imcommon in ^lay and June on 

 broom {Spartitnn scojxiriuin). It is in the collections of 

 Mr. Douglas, Dr. Power, and my own. 



Species 4. Psi/lln biixi. 



Chermes Bnxi, L. S. X. ii. 738, 7; Reaumur, Ins. iii. 

 t. 19, fig. 1—14; Fab. E. S. iv. 221, 5; S. K. ;]04, 5; 

 Psi/lla Bnxi, Forst. Verh. Ver. Ivheinl. y. 71, 3; Leth. 

 Hem. Nord, ed. ii. 90, 10. 



Green or yellowish-green. Face : lobes short, divergence 

 at the apex small, outer margin much more rapidly inclined 

 than the inner one. Mesonutum not unfroquentlv with two 

 triangular orange patches on the anterior portion and four 

 others of the same colour on the posterior ])ortion. Fh/tra 

 and nerves testaceous, the former shining; costal stigma 

 wanting. Tliiyha frequently brown. 



Head: croton pale green or dark brown, or the base 

 dark brown. Face pale green or yellowish or greenish- 

 white, clothed with fine, pale hairs ; lobes short, slightly 

 divergent at the a])ex, onter margin nnich more rn})idly 

 inclined than the inner one. Antenncp yellow, reaching to 

 about in a line with the apex of the petiole of the cubitus; 

 3rd joint abont as long as the 4th and 5th together; 4 — 8 

 narrowly brown at the apex, 9 — 10 dark brown. 



Thorax: pro- and ■nicso-noturn greenish or yelloAvish- 

 green; anterior portion of the lattergenerally with two trian- 

 gular orange-coloured patches in iront, posterior portion with 

 four orange-coloured })atches ; the two interior oval, the 

 two exterior somewhat trapezoidal. Flijtra and nerves 

 testaceous; costal stigma wanting. Fe(fs dusky yellow. 

 Thi(jhs sometimes dark brown, apex dusky yellow. 



Abdomen generally green. 



Length Ij^ line. 



Not unfrequently the crown, pro- and meso-notum are 

 entirely dark brown or piceous, the posterior portion of the 

 latter on the sides with two or three short, pale, longitudinal 

 lines. 



An extremely common species on box trees (Buxus 

 sempervirens); everywhere from ^lay to October. 



