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. jmmilus 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. schultzei 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 grigus 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. lobata 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; 



