416 THE COCCIDAE 



Mexico, California, eastern United States, Europe, 

 Egypt, Ceylon, Mauritius, Natal, south Africa on orange, 

 lemon, cocoanut, banana, palms, rose, Ilex, Camellia, 

 Dictyosperma, Phyllodendron, guava, grape-fruit, olean- 

 der, nig, Begonia, etc. aonidum Linn. 



ff. Pygidium with first pair of paraphyses nearly as long as 

 fourth and more than twice as long as second, third, 

 and fifth, fourth pair very slightly longer than first; 

 median pair of lobes slightly wider than long, distal 

 margin transverse, subtruncated, slightly indented; sec- 

 ond and third pairs of lobes slightly smaller, similar in 

 form, broader than long; pectinae and plates subequal 

 in length to lobes, arranged 2, 2, 3, 3, caudal one of each 

 of two last groups a plate; each lateris thickened, four 

 or five sharp tooth-like projections with serrate edges; 

 genacerores (6-10)3-7; caudal portion of each lateral 

 margin of thorax with tubercle, not bearing a horn. 

 Brazil on Laurus. paulistus Hemp. 



ee. Pygidium with all paraphyses of each side subequal in 

 length, first pair as long as others; median pair of lobes 

 bluntly pointed, elongate, prominent lateral notches; sec- 

 ond pair of lobes similar to first, smaller, notched; third 

 pair of lobes similar to second, smaller, serrate on lateral 

 margin; pectinae elongate, arranged 2, 2, 3, 5, those of 

 third incisurae and lateres unapectinae; genacerores (3-4) 

 1-3; thorax produced on each side into prominent tooth- 

 like projection. Italy, Jamaica, Demerara on Croton, 

 Cycas, Pandanus, rose, mango pinnuliferus Mask. 



aa. Pygidium always with more than five pairs of paraphyses. 

 b. Pygidium with six or seven pairs of paraphyses. 

 c. Pygidium with six distinct pairs of paraphyses. 



d. Pygidium with first and second pairs of paraphyses never 

 subequal. 



e. Pygidium with second, third, fourth, and fifth pairs of 

 paraphyses subequal, longer than first and sixth, second 

 pair slightly longer than third, fourth, and fifth, first 

 pair shortest, and sixth pair intermediate in length; me- 

 dian pair of lobes large, broad, distal margin oblique, sinu- 

 ate; second pair of lobes much shorter and narrower than 

 median pair, bluntly rounded; third pair smaller than sec- 

 ond, more pointed; pectinae short, arranged 2, 2, 3, 3, those 

 of median and second incisurae distapectinae, others 

 unapectinae; genacerores (4-4)2-3. Chrysomphalus dictyo- 

 spermi arecae Newst. United States, West Indies, Mexico, 

 Brazil, Demerara, China on Dictyospermum, Erythrina, 

 Cycas, Latania, palms, rose, mango, etc.--dictyospermi Morg. 



ee. Pygidium never with four pairs of paraphyses subequal in 

 length. 



