452 THE COCCIDAE 



rounded; third pair of lobes long, slender, spine-like, distant 

 from second pair; pectinae as long as lobes, arranged 2, 2, 3, 4-5, 

 those of median and second incisurae furcapectinae, of third in- 

 cisurae broad distapectinae, and of lateres unapectinae; gena- 

 cerores in two groups of 6-8 cerores each; calles present, mesal 

 fused. — Selenaspidus articulatus simplex Charm. — England, West 

 Africa, Demerara, West Indies, Brazil, Panama, Costa Rica, Mex- 

 ico on Pandanus, Dictyosperma, Cordyline, orange, lime, coffee. 



Gardenia, Ficus, etc. articulatus Morg. 



bb. Body with mesothoracic marginal spine not suddenly drawn out, 

 twice as long as wide. 



c. Body with cephalic margin distinctly serrate; median pair of 

 lobes quadrangular, entire, with rounded angles, longer than 

 broad; second pair of lobes broader than long, rounded, distal 

 margin oblique, sinuate or notched; third pair of lobes dis- 

 tant from second, spine-like, hooked, cephalic surface convex, 

 caudal concave, not conical; pectinae as long as lobes, ar- 

 ranged 2, 2, 3, 4-6, those of each third incisura very broad; 

 genacerores in two groups; calles present, mesal calles not 

 fused. — Aspidiotus (Selenaspidus) articulatus magnospinus 



Newst. — Uganda, Africa viagnospiiius Newst. 



cc. Body with cephalic margin entire; median pair of lobes 

 broader than long, broadly rounded, entire or faintly notched; 

 second pair of lobes similar in size and form to median pair, 

 entire; third pair of lobes distant from second, spine-like, not 

 hooked, cephalic and caudal margins concave or straight, as 

 long as pectinae, length three times greatest width; pectinae 

 subequal in length to lobes, arranged 2, 2, 3, 2, those of each 

 third incisura broad; genacerores in two groups, 7-10; dorsal 

 oraceratubae numerous. — South Africa on Euphorbia. Mi- 



musops. pertusus Brain. 



aa. Body with cephalic margin crenulate with projections of two sizes, 

 large projections with smaller ones interspersed; median pair of 

 lobes with distal end bluntly pointed, distal portion of lateral mar- 

 gin suboblique, mesal and lateral notches faint to distinct, longer 

 than broad; second pair of lobes longer than broad, distal end 

 bluntly pointed, lateral margin oblique, mesal notch near distal 

 end and lateral notch near middle of lateral margin; third pair of 

 lobes longer than broad, pointed, spine-like; pectinae subequal in 

 length to lobes, arranged 2, 2, 3, 4-6, those of median incisura dista- 

 pectinae, others unapectinae, those of each lateris irregular; dorsal 

 oraceratubae numerous; genacerores in two groups; mesothoracic 

 marginal spine conical, blunt, greatest width equal to length. — 

 Kamerun, Africa on palms kamerunicus Lindgr. 



SPECIES OF DUPL.\SPIDIOTUS 



a. Pygidium with two pairs of paraphyses, cephalic end enlarged, 



knob-like, long pair between first and second pairs of lobes, pair 



about one-half this length between second and third pairs of lobes; 



median pair of lobes large, rounded at distal end, distinct lateral 



