OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 59 



HEAD : (!) (2) (3) (4) (5) (6) 



Ventral preocular depression : ( 1 ) 



Entirely absent. (2) Well marked. 2 2 1 2 2 2 



Appearance in front view : (1) Sub- 

 triangular or rounded. (2) Dorso- 

 ventrally flattened. 1 1 2 1 1 1 



Dorsal arm of midcranial ridge : (1) 



Anteriorly detached from lateral and 



ventral arms. (2) All arms of the 



midcranial ridge joined. 1 1 1 1 2 2 



Lateral arms of midcranial ridge : (1) 



Represented by weak sclerotization. 



(2) Well developed. 1&22 2 2 1 1 



Postoccipital ridge : (1) U-shaped. 



(2) V-shaped. 1 1 2 1 1 1 



Anterior development of postoccipital 



ridge : (1) Not reaching preocular 



ridges. (2) Confluent with preocular 



ridges. 1 & 2 1 & 2 1 1 2 2 



Pre. and postocular ridges : (1) Widely 



separated. (2) Joined by means of 



the interocular ridge. 2 2 2 2 1 1 



Postocular ridge : (1) Dorsally 



reduced. (2) Well developed. 2 2 1 2 2 2 



Lateral ocelli : (1) Vestigial. (2) 



Large and well developed. 2 2 2 2 2 1 



Anterior tentorial arms : (1) Separated. 



(2) Fused before merging into the 



cranial apophysis. 22221 1 



Head setae on each side : 



Dorsal head setae : (1) Usually 7 



setae or less. (2) More than 7 setae. 2 2 2 1 2 2 



Ventral ocular setae : (1) Absent. 



(2) Present. 1 2 1 1 1 1 



Ventral head setae in a transverse row 

 or band anterior to the ventral eyes : 



(1) Usually 5 setae or less. (2) More 



than 5 setae. 222122 



Genal setae : (1)7 setae or less on 



each gena. (2) More than 7. 1 2 1 1 1 1 



Ventral head pores : (1) Absent. 



(2) Present. 1 1 1 1 2 1 



Antennae : (1) Comparatively short, 



the body 16 or more times as long. 



(2) Comparatively long, the body 



1-5 or less times as long. 1 1 1 2 2 1 



