el THE FAMILY COCCI D A F. m 



same size on all tibiae larsi 21-27 I* wide, with 13-28 f.s. and 16-26 h.s. ; tarsal digitules 

 subequal, somewhat longer than claw. Claws of medium length, a little longer than width of 

 tarsus ; slightlv curved, with small denticle near tip ; ungual digitules subequal, about as long 

 as claw . 



Abdomen 520-600 (average 570) jx long and 390-500 (average 425) ij. wide. 



Segments I-Vll : tergites represented by a small sclerite on each side on anterior margin of 

 segments 1 1 — 1 1 1 and a weak transverse plate on VI I ; sternites represented by a weak transverse 

 sclerite on segments II, III, sometimes VI, and VII. Caudal extension of segment VII large, 

 reaching or extending beyond the level of posterior margin of segment VIII, tapering, weakly 

 sclerotized. Dorsal setae : occasionally one f.s. on segments I — 1 1 ; usually one h.s. on each 

 side on I and each of segments IV-VII. Pleural setae consisting of dorsopleural setae : 1-7 

 (average 3-4), 1-6 (average 2-5), 1-4 (average 22), 2-6 (average 3*9), 1-6 (average 3-1) and 0-3 

 (average 1-4) f.s., and 0-2 (average 0-9), 0-1 (average 01), o— I (average 03), 1-4 (average i-8), 

 0-5 (average 3-3), and 2-5 (average 30) lis. on segments I VI respectively, and of rem 'ro pleural 

 setae : 0-3 (average i-i) f.s. on VI and usually one h.s, on each of segments I V VI. Segment 

 VII with 10-17 (average 15) f.s. and 512 (average 7-3) h.s. ; some of the posterior h.s. usually 

 longer than the rest. Ventral setae : 30-38 (average 34), 13-23 (average 20), 8-18 (average 15), 

 5-11 (average 7-6), 5-1 1 (average 7-8) and 4-9 (average 6-5) f.s. on segments II VII respectively 

 usually one h.s. on each side on segments III I V and 4 on each of \ VII 



Segment VIII with weak termite and transverse sternite . caudal extension forming a small, 

 sclerotized, papilla-shaped lobe with .1 small, membranous cicatrix laterally ; glandular pouch 

 with 2 long, pointed setae, whose protruding pari is i\ \ tunes as long as section within pouch. 

 Small IXth tergite present. Ante-anal setae : 1 strung lis, which are sometimes forked. 

 Posterior margin with 3 h.s. on each side 



Genital segment. Penial sheath long, about [ total body length (ratio 1 : 4-19-4-44, average 

 4"3^)> 456-486 (average 470) u. long and 45 40 (average 46) u wide at base of aedeagus ; lateral 

 sclerotizations not joined anterior to anus ; Length ol basal rod about j{ or equal that of aedeagus, 

 extending anteriorly from base of the aedeagus for about .', of the distance to apex of the basal 

 membranous area ; apex of sheath without membranous extension, Area from base of sheath 

 to tip of aedeagus with 20-30 (average 25) small setae ; a cluster of small sensilla occurring near 

 apex of sheath. Aedeagus short (106-125, average 114 11 long), penial sheath and basisternum 

 longer, the ratios being 1 : 3 9-4 3 (average 41) and 1 : r;i) 207 (average 1 09) re- 

 spectively. 



Material examined : 8 specimens, collected by Z. Kawecki on Ribes aureum 

 Pursh. and Ribes sp. in Warsaw, Poland during January, 1962. 



In addition, ten specimens were examined from Belgrade, Yugoslavia (received 

 from N. Mitic-Muzina, collected on an unknown host during 1961) and two from 

 Alma-Ata, Kazakhstan, USSR (received from G. Matesova, collected in fruit 

 orchards on 20.iv.51). These specimens were all smaller than the specimens from 

 Warsaw, consequently the measurements of the various structures and the numbers 

 of setae are somewhat reduced ; otherwise they are practically identical. On the 

 other hand, the specimens that Habib (1956) described from Cotoneaster microphylla 

 Lindl., collected in Wisley, England, were bigger (2100-2300, average 2200 u. long). 

 It is worthy of note that the females of this species also show considerable size 

 variation, due mainly to the influence of the host plant (Habib, 1953 and Kawecki, 

 1958a). 



The variation in the specimens from Poland, Yugoslavia and the USSR can be 

 summarized as follows (all measurements in \x) : 



