456 THE COCCIDAE 



dd. Pygidium with width of third incisura distinctly less than 

 total width of median pair of lobes and median incisura; 

 median pair of lobes quadrangular, distinct lateral and me- 

 sal notches, sides straight, subparallel; second pair of lobes 

 longer than broad, faint mesal and lateral notches; third 

 pair of lobes sharply pointed, spine-like; pectinae arranged 

 2, 2, 3, 2-3, those of each third incisura and lateris not or 

 only slightly longer than third lobe; spiracerores wanting. 



South Africa on Phormium. pumilus Brain. 



bb. Pygidium never with more than one pectina on each lateris, 

 sometimes none. 



c. Pygidium with caudal pectina of each third incisura much nar- 

 rower than others; median and second pairs of lobes similar 

 in size and shape, distinct mesal and lateral notches, bluntly 

 rounded between notches, proximal portion more or less con- 

 stricted; third pair of lobes small, entire, as long as adjacent 

 pectinae, shorter than other lobes, crenulate; pectinae sub- 

 equal in length to lobes, arranged 2, 2, 3, 1-0, one on each lat- 

 eris broad, adjacent to third lobe; setae small, short; dorsal 

 oraceratubae numerous, tubes very long. Southwest Africa on 



succulent plant. schnitzel Newst. 



cc. Pygidium with caudal pectina of each third incisura as broad 

 as one next to it; median and second pairs of lobes subequal, 

 second pair slightly smaller, faint mesal and lateral notches, 

 proximal portion more or less constricted; third pair of lobes 

 pointed, as long as pectinae and other lobes; pectinae dista- 

 pectinae, arranged 2, 2, 3, 1, subequal in length to lobes; setae 

 inconspicuous. South Africa on Arthrosolen griqus Brain. 



SPECIES OF SCHIZASPIDIOTUS 



Body with deep mesal incision at cephalic end and deep thoracic con- 

 striction apparently between prothorax and mesothorax and two others 

 on caudal portion of preabdomen; median pair of lobes quadrangu- 

 lar, deep lateral and mesal notches with bluntly pointed projection 

 between them, distant; second pair of lobes smaller than median, 

 entire, distal end broadly rounded; pectinae deeply lacinate, longer 

 than lobes, arranged 2, 2, 6 or more, one next each second lobe a 

 broad pectina, others plates; anus slightly more than its width from 

 caudal margin; vulva about same distance cephalad of anus. Philip- 

 pine Islands on Ficus. loTxita Ckll. & Robs. 



SPECIES OF AMBIGASPIS 



Pygidium with median pair of lobes large, subtriangular, bluntly pointed, 

 both margins crenulate; second pair of lobes bluntly rounded, mesal 

 margin straight, lateral oblique, crenulate, broader than long; third 

 pair of lobes twice as broad as long, short, mesal margin straight, 

 lateral oblique, crenulate; plates dagger -like, longer than lobes, ar- 

 ranged 0, 0, 3, 5-7, those of each lateris broader, caudal three more 

 than twice as long as those of third incisurae; anus and vulva situ- 

 ated at about same level; mesospiracerores and metaspiracerores 2-2; 



