iGi MORPHOLOGY AND TAXONOMY OF ADULT MALES 



- Degree of sclerotization of postocular ridge reduced posteromedially ; with 10 

 simple eyes ; genae weakly polygonally reticulated ; antennae shorter than 

 posterior leg, ratio i : 0-73-0-87 (average o-8o) ; 3rd antennal segment 1-8-2-2 

 (average 2) times longer than wide ; basisternum without setae ; setae of 

 glandular pouch with external part about i\ times as long as the section within 

 the pouch ; basal rod extending § or f of the length from aedeagus to apex of 

 basal membranous area . ... EULECANIUM (£. tiliae (L.)) 



Key to the Genera and Species of the ERIOPELTIS Group 



With a pair of median, hair-like ventral head setae distinctly longer than the rest ; 

 3rd antennal segment 30-37 (average 3-3) times longer than wide ; prescutum 

 distinctly polygonally reticulated ; median ridge of basisternum complete ; 

 tergites present on all the abdominal segments ; glandular pouch absent, repre- 

 sented by a slight depression with one long seta ; ante-anal region with no fleshy 

 setae, but 2-6 circular pores ; penial sheath short, the ratio of its length in 

 relation to body length being 1 : 6-06-7-28 (average 6-66). 



LUZULASPIS (L. luzulae (Dufour)) 



Without a pair of long, median, hair-like ventral head setae ; 3rd antennal segment 

 4-6 times longer than wide ; prescutum not distinctly reticulated ; median 

 ridge of basisternum to a greater or lesser degree reduced ; tergites absent on 

 abdominal segments III-VI ; glandular pouch present, containing 2 long setae ; 

 ante-anal region with 1-9 fleshy setae but no pores ; penial sheath medium-sized, 

 the ratio of its length in relation to body length being 1 : 4-46-4-92. ERIOPELTIS 2 



Lateral arms of midcranial ridge absent ; apex of cranial apophysis truncate or 

 rounded ; median ridge of basisternum interrupted, combined length of separate 

 parts more than half the length of the basisternum ; post-tergital region, and 

 anterior arms and membranous area of scutum not reticulated. 



Eriopeltis ?festucae (Fonsc.) 



Lateral arms of midcranial ridge present ; apex of cranial apophysis trifurcate ; 

 median ridge of basisternum reduced to a few vestiges of which the combined 

 length is less than half the length of the basisternum ; post-tergital region, and 

 anterior arms and membranous area of scutum weakly reticulated Eriopeltis sp. 



Key to the Genera and Species of the COCCUS Group 



Head with anterodorsal bulge not pronounced ; with 14-32 fleshy postmeso- 

 spiracular setae ; with 1-6 postalary setae ; segment VIII laterally with a large 

 semicircular caudal extension, which carries a large cicatrix posterodorsally ; 

 without 2 long, hair-like ante-anal setae ; with 2-7 fleshy setae lateral to gland- 

 ular pouch ; abdominal segment VI ventrally with 2 or less hair-like setae, usually 

 one on each side ; penial sheath with a large, finger-like, membranous extension 

 at the apex CEROPLASTES 2 



Head with anterodorsal bulge pronounced ; with more than 43 fleshy postmeso- 

 spiracular setae ; usually without postalary setae ; abdominal segment VIII 

 laterally with a geniculate, mammillate or papilla-shaped caudal extension which 

 carries a small lateral or large posterior cicatrix ; with 2 long, hair-like ante-anal 

 setae ; without fleshy setae lateral to glandular pouch ; abdominal segment VI 

 ventrally with 3 or more hair-like setae, usually 2 laterally and 2 medially ; penial 

 sheath with a very small or no membranous extension at the apex ... 3 



