436 THE COCCIDAE 



second pair of lobes minute, bluntly pointed, entire; 

 third pair of lobes smaller than second, pointed, pec- 

 tinae and plates subequal in length to median pair of 

 lobes, arranged 2, 2, 3, 2-3, those of median incisura 

 and each lateris slender plates, those of second and 

 third incisurae longest, f urcapectinae ; densariae of 

 second incisurae larger than those of third, wanting 

 in median; anus large, about its own width from 



caudal margin. Argentina on Ophryoporus 



argentina Leon. 



ff. Pygidium with anus large, over three times its width 

 from caudal margin; median pair of lobes large, quad- 

 rangular, deep lateral and mesal notches, distal margin 

 strongly convexly rounded between notches; second pair 

 of lobes small, rounded, inconspicuous; third pair of 

 lobes rounded, smaller than second pair, inconspicuous; 

 pectinae not deeply lacinate, about as long as median 

 pair of lobes, arranged 2, 2, 3, 2-3, those of third in- 

 cisurae and of lateres either not deeply lacinate or 

 plates, one of each third incisura much larger than 

 others; densariae prominent, those of second incisurae 

 larger than those of third, mesal and lateral margins 

 subequal; spiracerores wanting; each lateris on caudal 

 portion with short plate-like projections; pygidium of 

 second nymphal female similar to adult. Tanga, Africa 



on Tectona. tectonae Lindgr. 



ee. Pygidium with median pair of lobes not well developed, 

 margin rounded; second pair of lobes represented by sim- 

 ple lobe of border of pygidium; third pair of lobes spini- 

 form; pectinae f urcapectinae, arranged 2, 2, 3, 2; pectinae 

 of median incisura but little longer than median lobes, 

 others successively longer, those of each lateris twice as 

 long as lobes, formed with mesal fork much longer than 



lateral. France on Psamma provincialis Vayss. 



cc. Pygidium with five to seven pectinae on each lateris. 



d. Pygidium with densariae in median incisura; median pair of 

 lobes subquadrangular, longer than broad, entire, truncately 

 rounded, distant; second and third pairs of lobes much 

 smaller, short, entire, bluntly rounded; pectinae elongate, 

 nearly twice as long as median pair of lobes, deeply lacinate, 

 arranged 2, 2, 3, 5-6, those of each lateris very deeply 

 lacinate; anus about four times its width distant from caudal 

 margin; setae of median and second pairs of lobes long, 

 longer than lobes; densariae of second and third incisurae 



typical. Canary Islands on Euphorbia. taorensis Lindgr. 



dd. Pygidium not with densariae in median incisura; median 

 pair of lobes longer than broad, subadjacent at proximal end, 

 bluntly rounded, entire; second and third pairs of lobes 

 large and distinct, smaller than median pair, bluntly pointed, 

 indistinct lateral notch; pectinae elongate, distinctly longer 



