OF THE FAMILY COCCI DAK 45 



I s. slender and sometimes difficult to separate from h.s. 



Coxae with 15-21 (average 19) f.s. on the fore, and 19-27 on the middle and hind coxa, and 

 each with 1 1 19 h.s. ; fore 1 oxa with 5-6 (average 5-6) coxa! bristles, each with a small apical 

 knob ; apical seta about half as long as trochanter. Trochanters 26-38 fi wide, with 6 oval 

 sensilla ; with 11-16 (average 12), 7—14 (average 10) and 5—12 (average 8) f.s. on the fore, 

 middle and hind coxa respectively, and with 6-1 1 h.s., the latter including 2 minute setae near 

 basal ridge, one small seta on the outer m irgin and .' long setae of which the longest (apical), on 

 the fore trochanter, is 3-0 3-9 (average 3*4) times as long as the width of the trochanter 

 I ' rmora of medium width (42-57 y.), ratio width to length of hind femur being 1 : 4-5 5-2 

 (average 4-8) ; each with 21 35 Is. and 12 [8 b S. Tibiae 24-30 [x wide, ratio width to length 

 of hind tibia being 1 : [2-3 14-6 (average 135) ; each with 09 85 setae of which 20-34 are q.S. 

 and 44-59 f.s., the latter about 1 1 [J times as long as width of tibia ; apical spur about the 

 same size on all tibiae. Tarsi 23-30 y, wide, hind tarsus 3-9 50 (average 4-5) tunes longer than 

 wide ; cub with i> [8 f.s. and 11 i<> h.s. ; tarsal digitules subequal, longer than claw. 1 

 of medium length, about as long as width of tarsus . shghtlv curved, with small denticle near 

 tip ; anterior ungual digitule with larger apical knob than posterior one, digitules about as long 

 as c law. 



Ibdomen 490-650 (average 579) u long and 360-430 (average J90) u wide 

 Segments 1 VII : tergites and sternites present on all segments ; tergites on segments II, III 

 and sometimes IV represented by a small sclerite on each side on .interior margin, and on 

 l\' VII by a transverse plate ; stermtes represented by a weak transverse plate on the anterior 



and posterior segments and .1 small sclentc on <a« h side on the intermediate segments Caudal 

 extension of segment VII small, rounded, not sclerotized Dorsal setae : lis only, segments 



1 III occasionally with one, and segments IV VII usually with one seta on each side. Pleural 

 setae absent on segments I and II and on 111 VI represented by h.s only, which usually include 



2 (range 1-3) dorsopleural setae and 1 ventropleural seta on each segmenl Segment VII with 

 4-6 (average 4-4) h.s. Ventral setae : h.s only, usually one on each side on II and 4 on each of 

 segments III- VII. 



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

 simple lobe ; glandular pouch with 2 long, pointed setae, whose protruding part is about twice 

 as long as section within pouch No IX tergite observed lute-anal setae ; 2 long, and 

 • >< 1 asionally one small h.s. Posterior margin with 3 h s on eai h side 



Genital segment. Penial sheath long, about ? tot d body length (ratio 1 : 3-3-3-5, average 34), 

 581-695 (average 628) u. long and 40 53 (average 4c)) iz wide ; lateral sclerotizations not joined 

 anterior to anus ; length of basal rod about 5 that of aedeagus, the rod extending anteriorly 

 from base of aedeagus for about ,", of the distance to apex oJ basil membranous area ; apex 

 of sheath without membranous extension. The area from base ol sheath to tip of aedeagus 

 with 28-40 (average 32) small setae ; a cluster of small sensilla occurring ventrally near apex 

 of sheath. Aedeagus long (258—315, average 293 \i), penial sheath longer and basisternum 

 shorter, the ratios being 1 : 2-02-3 (average 21) and i : 0-74-0-82 (average 0-78) respectively 



Material examined : 10 specimens, collected by N. S. Borchsenius on Abies sp. 

 in the Nikitskii Botanical Gardens, Crimea, USSR on 25. v. 54. 



PHYSOKERMES 

 Physokermes piceae (Schrank) 



(Text-figs. 6 and 7) 



A medium-sized, robust species with comparatively short antennae and legs ; with many- 

 setae on the appendages, but few on the body itself. When mounted, total body length 

 1550-2140 (average 1803) y. ; width at mesothorax 380-500 (average 429) u,. Wing expanse 

 2950-3200 (average 3063) u.. 



