340 THE COCCIDAE 



plates short, spine-like, subequal in length to median pair of lobes,, 

 arranged 0, 2, 3-4, those of each lateris arranged, two near a second 

 lobe, and group of one or two near middle; lobes and plates all some- 

 times wanting; genacerores 3-4(9-13)8-17. Algeria on Cypress 



striata Newst. 



SPECIES OF HEMICHIONASPIS 

 a. Pygidium of adult female with three pairs of lobes. 



b. Pygidium with median pair of lobes small, scarcely projecting 

 beyond distal end of second, each with single notch; second pair of 

 lobes incised; third pair of lobes not incised; plates 0, 1, 1, 6, those 

 of incisurae short, those of each lateris arranged 1-1-4; altacera- 

 tubae seven on each side; dorsal oraceratubae few; anus located 

 cephalad of vulva; genacerores 1-12(20-23)20-23. India on Thea.__ 



separata Green. 



bb. Pygidium with median pair of lobes large, extending slightly 

 caudad of second pair; second pair of lobes incised, feebly chiti- 

 nized, distinct, distal portion of lobelets expanded; third pair 

 of lobes sometimes developed, incised, mesal lobelet longer than 

 broad, lateral lobelet broader than long, margins of lobelets 

 serrate; latadentes of second incisurae very prominent, longer 

 than broad; plates arranged 0, 1, 1, 5-6, those of each lateris 

 arranged l-lto2-3; brevaceratubae few in number, large and oval; 



genacerores 8-10(20-23)17-23. Ceylon on Carsia alatae Ruth. 



aa. Pygidium with less than three pairs of lobes, 

 b. Pygidium with two pairs of lobes. 



c. Pygidium without plates in each second incisura; distance 

 between median lobe and second lobe greater than width of a 

 median lobe; median pair of lobes large and prominent, mi- 

 nutely serrate or crenulate, hardly projecting; second pair 

 of lobes small, incised, narrow, inconspicuous, scarcely pro- 

 jecting; plates moderately long, arranged 0, 0, 1, each lateris 

 probably with more; dorsal oraceratubae few, large and con- 

 spicuous; mesospiracerores represented by small group; gena- 

 cerores 1-10(13-23)17-25. Bengal, India on Ficus fici Green. 



cc. Pygidium with plates in second incisurae, if wanting, median 

 and second pair of lobes not the width of a median lobe apart, 

 d. Pygidium with two median lobes together not as broad as 

 long or at most subequal. 



e. Plygidium with second pair of lobes incised, mesal lobe- 

 let projecting beyond smaller lateral lobelet; median pair 

 of lobes long, projecting distinctly beyond distal ends 

 of second pair, lateral margins with two notches or irreg- 

 ularly crenulate; plates arranged 0, 1, 6, those of each 

 lateris arranged 1-1-1-3; prominent latadentis in each sec- 

 ond incisura between plate and third lobe; dorsal oracera- 

 tubae few in number; genacerores 6-7(11-12)9-11. Socotia 



Island on Dracaena. dracaenae Cooley. 



ee. Pygidium with second pair of lobes not incised, longer 

 than broad, hatchet-shaped, distal margin oblique; median 



