34 



CALIFORNIA STATE COMMISSION OF HORTICULTURE. 



hairs, each surmounting a small conical tubercle, on each side of ven- 

 tral aperture. Antennae with eight joints, the divisions between third 

 and fourth often very indistinct, division between seventh and eighth 

 diagonal; formula variable, joint 8 always considerably the longest, 

 joints 6 and 7 shortest, joints 2 to 5 subequal. Legs rather small but 

 well developed; tarsus shorter than tibia; digitules normal. Length, 

 3 to 4.75 mm.; breadth, 2 to 3 mm. 



Young larvae crowded beneath the body of the parent, which is 

 apparently ovoviviparous. 



Male unknown. 



On palms. (In hothouses.) 



Coccus hesperidum Linn. 



Adult Female. Bright yellow or greenish yellow, minutely specked 

 by red-brown, with specks sometimes agglomerated into transverse 



bars, especially on the median ab- 

 dominal regions; in other parts 

 tending to form dotted lines radi- 

 ating from center to margin. Dried 

 specimens straw colored and much 

 wrinkled. Form oblong-oval, often 

 very irregular in outline; narrowest 

 in front; more or less convex above, 

 according to age. Eyes minute, 

 black, marginal. Stigmatic clefts 

 with three spines; the median one 

 very long and pointed, projecting 

 well beyond margin. Marginal 

 hairs simple, pointed; rarely a few, 

 more particularly at posterior ex- 

 tremity, divided or frayed at tip. 

 Submarginal tubercles, four to five 

 on each side. Scales of anal oper- 

 culum with outer edge slightly 

 longer than base; the latter slightly 

 concave in outline. Derm cells scat- 

 tered, small, circular, inconspicu- 

 ous. Antennae 7- jointed; formula: 

 (37)42165. Legs normal. Anal 

 Length, 2.25 to 3.50 mm.; breadth, 1.25 to 



FIG. 15. Coccus hesperidum (Soft Orange Scale). 

 An orange branch thickly infested. 



ring with eight stout hairs. 

 2.50 mm. 



The insect is ovoviviparous; living larvae are usually found beneath 

 the body of the parent. 



