OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 189 



occasionally absent (av. o-8). Hamulohalterae atrophied and sometimes absent altogether ; 

 when present, 31-52 (40)^ long and 12-18 (15)0. wide ; the hamulohalteral ridge and the seta 

 absent. 



Legs : Well developed, short and stout ; the middle legs usually shortest and the hind legs 

 longest ; the ratio length of the hind leg to the total length of body 1 : 2-2-2-4 ( 2 '3)- Coxa 

 and trochanter about 64 and $jy. wide respectively ; the latter with a long apical seta. Femur 

 about 49(1 wide ; that of the middle leg shortest and those of the fore and hind legs subequal ; 

 the ratio width to length of the hind femur 1 : 2-9-3-4 (3 1 )- Tibia about 31(1 wide ; with 2 

 apical spurs ; in fore leg the femur shorter than the tibia, the ratio their lengths being 1 : 11- 

 1-2 (1-15)- Tarsus about 27(1 wide ; tarsal digitules apically knobbed, about 34(1 long. Claw 

 wide at base, abruptly tapering apically ; ungual digitules apically knobbed. The lengths of 

 the leg segments (in microns) and the number of setae on each are given in the following table : 



Fore leg Middle leg Hind leg 



Coxa 



length 

 h.s. 



52-58 (55) 

 7-i 1 (9-5) 



52-58 (55) 

 7-10 (8-9) 



55-61 (58) 



8-13 (117) 



Trochanter 



length 

 h.s. 



64-70 (67) 

 4-5 (4-5) 



64-70 (68) 

 4-5 (4-4) 



7°-79 (73) 

 4-6 (5-0 



Femur 



length 

 h.s. 



143-168 (156) 

 11-16 (131) 



134-153 (143) 

 8-12 (104) 



140-168 (153) 

 9-13 (ii-8) 



Tibia 



length 

 h.s. 



168-189 (180) 

 16-22 (185) 



168-189 (180) 

 15-23 (i9i) 



177-214 (198) 

 14-21 (18-2) 



Tarsus 



length 

 h.s. 



70-76 (72) 

 9-12 (10-7) 



70-79 (74) 



9-13 (II-2) 



73-85 (79) 

 11-14 (125) 



Claw 



length 



21-24 (22) 



21-24 (22) 



21-24 (22) 



Total length 



of leg 



516-583 (549) 



506-57O (54O) 



534-622 (583) 



Abdomen : 570-646 (608) u. long and 365-426 (395) (x wide. Tergites of segments I and II 

 weak and narrow ; that of segment VIII large. Sternites of segment VIII ill-defined. Ostioles 

 absent. Abdominal setae on each side : Dorsal setae usually 3-5 on segments I to VI (some- 

 times 7 on segment I and 6 on segments II and IV), 2-4 on segments VII and VIII, including 

 a slightly longer seta on the latter. Pleural setae 3-4 and sometimes 5 on segments I to VII, 

 and always 4 on segment VIII, including one considerably longer seta (85-95, av. 89(1 long). 

 Ventral setae 1 on segment II, 1-2 on segment III, 2-3 on segments IV to VII, and 1-2 on 

 segment VIII. 



Glandular pouches comparatively very small ; setae 0/ glandular pouch only include a pair of 

 comparatively short tail setae, 46-92 (73) u. long, i.e. the ratio their length to the total length of 

 body 1 : 15-2-26-3 (18-6). 



The appearance and structure of the genital segment similar to that of the macropterous form ; 

 genital capsule 162-192 (177)^ long and 113-131 (i22)u. wide, the ratio 1-4-1-5 (145) : 1, and 

 the ratio its length to the total length of body 1 : 7-0-8-1 (7-7). Anal opening 15-21 (i8)[i 

 in diamter. Setae of genital segment on each side : Dorsally two long setae always present 

 near the base of the style ; ventrally 8-12 (9-6) slightly smaller setae occur on the genital 

 capsule. 



Material : 10 specimens examined, received in two lots as follows : 



1. 5 specimens collected by A. Dziedzicka, on Ulmus sp., in Krakow, Poland, during 

 May, 1964. 



2. 5 specimens also collected by A. Dziedzicka, on Ulmus sp., in Moglia, nr. Krakow, 

 Poland, 26. iv. 1963. 



