OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 199 



absent. Ostioles well developed. Aedeagus comparatively slender. More than 3 

 dorsal setae of the genital segment present . . . CENTROCOCCUS (p. 159) 



[Only one species, C. insolitus.] 

 Fleshy setae entirely absent. Dorsal arm of the midcranial ridge only marked by weak 

 sclerotization. Setae between the ventral simple eyes present. Terminal antennal 

 segment with only three well defined preapical bristles, subequal in length to those of 

 the two penultimate segments. Presternum triangular. Prescutum less than 3-5 

 times as long as scutum. Scutellum without lateral edges. Lateropleurite without 

 membranous areas. Postmesostigmatal pores present at least on one side. 

 Ostioles ill-defined. Aedeagus rather stout. 3 dorsal setae of the genital segment 



always present CEROPUTO (p. 155) 



[Only one species, C. pilosellae.] 



Key to PSEUDOCOCCUS Group of Genera 



Dorsal arm of the midcranial ridge disappearing before meeting postoccipital ridge ; 

 the latter anteriorly confluent with the preocular ridge. Dorsal ocular setae 

 present. One dorsal head pore usually present. Tegular setae less than 4. Abdominal 

 disc pores occur laterally and also dorsally and ventrally . DYSMICOCCUS (p. 139) 



[One species only, D. alazon.] 



Dorsal arm of the midcranial ridge posteriorly meeting the postoccipital ridge ; the 

 latter not reaching the preocular ridges anteriorly. Dorsal ocular setae absent. 

 More than one dorsal head pore present. Tegular setae more than 4. Abdominal 

 disc pores present only laterally PSEUDOCOCCUS (p. 131) 



Key to PLANOCOCCUS Group of Genera 



1 Style of the genital segment more or less straight and apically rounded in lateral 



view ............. 2 



Style curving upwards and apically pointed in lateral view ... 3 



2 (1) Dorsal arm of midcranial ridge absent. Head disc pores absent. Antennal 



setae about twice as long as the body setae ; the dorsal bristle of the 

 terminal antennal segment slightly shorter than the lateral bristles. Post- 

 tergital setae present. Prosternal and postmesostigmatal pores absent ; 

 metatergal pores present. Abdominal disc pores only present laterally. The 

 body 10 times or more as long as the penial sheath ; the style comparatively 

 broad. Aedeagus rather short, curving dorso-posteriorly FERRISIANA (p. 122) 



[Only one species, F. virgata.'] 

 Dorsal arm of midcranial ridge distinct. Head disc pores present. Antennal 

 setae about as long as the body setae ; the dorsal bristle of the terminal 

 antennal segment much shorter than the lateral ones (about half as long). 

 Post-tergital setae absent. Prosternal and postmesostigmatal pores present ; 

 metatergal pores missing. Abdominal pores present laterally and also 

 dorsally and ventrally. The body 8-5 times or less as long as the penial 

 sheath ; the style comparatively narrow. Aedeagus rather long, anteriorly 

 curving from its basal rod and reaching the cavity of abdominal segment 



VII MACONELLICOCCUS (p. 118) 



[Only one species, M. hirsutus.] 



3 (1) Dorsal arm of midcranial ridge posteriorly meeting the postoccipital ridge. 



One dorsal head pore only usually present. Antennal scape almost always 

 with 4 hair-like setae. Postmesostigmatal pores present, at least on one 

 side. Ostioles ill-defined or absent ........ 4 



