xu, D, 1 Robinson: Coccidx of the Philippine Islands 15 



Genus COCCUS Linnaeus 



Type, Coccus hesperidum Linnaeus. 

 Adult female never high convex or hemispherical, more or 

 less soft ; oval ; light in color ; legs and antennae well developed. 



Synoptic table of the species. 



a}. Female antennae 6- or T-jointed (Plate I, fig. 11). 



6\ Female scale red-brown, quite flat, broad oval diversipes. 



b'\ Female scale pale green; moderately convex, oval, often asymmetrical. 



viridis. 

 a?. Female antennae 8-jointed (Plate I, fig. 10) elongatus. 



Coccus elongatus (Signoret). 



Cocciis (?) elongatus (Signoret) Fernald, Cat. Coceidae of the World 



(1903), 168. 

 Coccus longulvs (Douglas) Fernald, Cat. Coceidae of the World 



(1903), 171; CocKERELL, Proc. Davenport Acad. Sci. (1905), 10, 



130. 

 Coccus elongatus Cockerell and Robinson, Bull. Am. Mus Nat. Hist. 



(1915), 34,428. 



Female pale yellow, slightly convex, very elongated, trans- 

 versely arched, slightly ridged when dry, 4 to 5 millimeters 

 long, 2 to 2.5 millimeters broad; surface marked by oval derm 

 cells like S. hemisphxrica ; anal plates broadly triangular; legs 

 ordinary, slightly longer than antennae ; antennae 8-jointed, three 

 the longest, two, four, five, and eight subequal (Plate I, fig. 

 10) ; marginal hairs slender and pointed. 



According to Sanders, C. elo7igatus and C. longulus cannot 

 be separated. A slight variation may be found in the antennae ; 

 otherwise the species seem to be the same. 



Luzon, Tayabas, Lucban (Townsend), on Codiaetim varie- 

 gatum; Laguna, Los Bafios (Baker), on Anona squamosa. 



Coccus diversipes Cockerell. 



Coccus diversipes Cockerell, Proc. Davenport Acad. Sci. (1905), 10, 

 130. 



Female scale flat, broad-oval, anterior end narrowest, about 

 2.5 millimeters long, 2 millimeters broad; light reddish brown; 

 surface marked with many large polygonal areas within which 

 are one or more small areas of the same general form; regions 

 between these with numerous gland spots which appear black; 

 anal plates long and narrow; anterior legs ordinary, middle 

 and hind legs very slender and elongated with large coxae; 

 antennae 6-jointed, measured in microns: (1) 30, (2) 37, (3) 

 97, (4) 27-30, (5) 25-27, (6) 55 (Plate II, fig. 21) ; marginal 



