14 PAPERS ON COCCID.^ OE SCALE IXSECTS. 



widely separated oblique lateral thickenings; ventral thickenings 

 normal, but slightly chitinized. 



Type. — Bureau of Entomology No. 14137. On Abies sp., im- 

 ported by F. N. Meyer, for the Bureau of Plant Industry, from 

 Wu Tai Shan, near Peking, China, received April 21, 1908. 



Note. — This insect occurs quite abundantly on the short leaves 

 of the Abies. It is closely allied to abietis Schrank, but diverges 

 from the latter in some easily recognizable structural features. The 

 margin of the anal segment beyond the second incision presents but 

 one lobular projection instead of two, as is the case with abietis; 

 and, furthermore, in abietis these projections are more produced and 

 are finely serrate on the oblique outer margin. 



ASPIDIOTUS (AONIDIELLA) COCOTIPHAGTJS n. sp. 



(Plate II, figs. 1, 2.) 



Scale of female: Subcircular, 1.6 to 2 mm. in diameter; light yellow- 

 ish brown, with a very minute central white tubercle; exuviae central, 

 larval 0.35 mm. in diameter; second stage, 0.75 mm. in diameter. 



Scale of male: Similar in color to the female, oval, a little over a 

 millimeter long by 0.7 mm. wide; both male and female secretions 

 moderate, translucent. 



Adult female: Subcircular, 1.2 mm. in diameter; the older or 

 spent females with the anal segment usually retracted, giving a kidney 

 shape to the insect as in aurantii; the inflated cephalo-thoracic and 

 abdominal segments, except the anal plate, are also strongly chiti- 

 nized as in aurantii; anal flate with basal lobules, 0.4 mm. in diame- 

 ter, but slightly chitinized, rounded; median lobes largest, chitinized, 

 brown, together measuring a little less than 0.04 mm. ; second and 

 third lobes much smaller; median lobes with two shoulders; innei 

 shoulder of the second and third lobes minute, sometimes absent in 

 the case of the third lobe, outer shoulders distinct; three low, serrated 

 areas beyond third incision, not always apparent; the posterior point, 

 however, of the first area chitinized, and sometimes assuming the 

 form of a rudimentary third lateral lobe; incisions normal; paraphy- 

 ses shorter than lobes, narrow, the one extending from the inner base 

 of the median lobes most prominent; plates in median and first and 

 second lateral incisions respectively 2, 2, 3, in length variable, sometimes 

 slightly exceedmg lobes, deeply forked at tips; three broad plates in 

 the third incision, oblique at apex, each terminating at the posterior 

 angle in a long spindle-shaped tail; anal opening about the size of 

 the first lateral lobe and about two lobes' length distant from tip; 

 paragenitals 0-1, 3-8, 3-5, scattering; dorsal pores in two prominent 

 rows, extending respectively from the second and third incisions, of 

 6 to 10 pores each; there are also some scattering lateral pores; basal 



