454 



THE COCCIDAE 



aa. Pygidium with four pairs of very unequal lobes; median pair of 

 lobes projecting distinctly beyond others, broadly bluntly pointed, 

 entire, as broad as long; second and third pairs of lobes similar, 

 elongate, sides subparallel, bluntly pointed, entire, twice as long as 

 wide; fourth pair of lobes short, as broad as long, bluntly rounded, 

 entire; pectinae not deeply lacinate, arranged 2, 2, 3, 3, 0, mostly 

 narrow distapectinae with few teeth; each lateris coarsely serrate 

 with deep indentations; genacerores (30-42) 20-30; mesospira- 

 cerores 13-25; scale blackish brown with orange colored exuviae. 

 Pseudaonidia duplex Ckll., Pseudaonidia rhododendri Green, Pseu- 

 daonidia rhododendri thearum Fern. India, Hawaiian Islands, 

 Japan, California, District of Columbia on tea, Camellia, Eurya, 

 Myrica, Olea, Rhus, camphor-tree, orange, rhododendron, "Umame," 

 Azalea. theae Mask. 



SPECIES OF PSEUDAONIDIELLA 



Pygidium with four pairs of lobes; median, second, and third pairs with 

 mesal and lateral notches; fourth pair with single notch; each lat- 

 eris with two or three pectinae; mesospiracerores about 15; pregena- 

 cerores and postgenacerores of each side apparently fused to form 

 single group consisting of 70-76 cerores. Japan, California on Peony, 

 Camellia, Rhododendron, Ilex, Thea paeoniae Ckll. 



SPECIES OF PARAONIDEA 



Pygidium with four pairs of lobes; median pair of lobes largest, others 

 successively smaller, all with mesal margin straight, lateral margin 

 oblique and notched; pectinae not conspicuously lacinate, arranged 

 2, 2, 3, 3, 0; paraphyses club-shaped, enlarged at cephalic end, three 

 pairs, first and second pairs subequal, slightly longer than third pair; 

 each lateris with prominent indentation; mesal portion of dorsum with 

 large lattice-shaped area; anus distant from caudal margin; genacerores 

 in two large curved groups of about 45; metathorax with lateral mar- 

 gins straight, narrower than portions of body cephalad and caudad of 

 it. Ceylon on Mimusops. malleola Green. 



SPECIES OF ENTASPIDIOTUS 



a. Pygidium with median pair of lobes entire. 



b. Pygidium with eleven plates or pectinae on each lateris; median 

 pair of lobes entire, broader than long, broadly rounded; second 

 pair of lobes as broad as median, entire, slightly oblique, broader 

 than long; third pair of lobes longer than broad, lateral margin 

 oblique with faint emargination ; pectinae and plates arranged 

 2, 2, 3, 11, plates in incisurae, dagger-shaped, sometimes finely 

 serrate on each lateris near third lobe; dorsal oraceratubae nu- 

 merous; setae minute, shorter than lobes. Abyssinia on 



Euphorbia. magnus Lindgr. 



bb. Pygidium always with considerably less than eleven plates or 

 pectinae on each lateris. 



c. Pygidium with two pectinae or plates or less on each lateris. 

 d. Pygidium with clearly defined more strongly chitinized 

 tongue-shaped area on ventral aspect, pointing caudad; me- 



